Cadillac - CT4 - Owners Manual - 2021 - 2021 (3)

Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 Contents Refer to the purchase documentation relating to your specific vehicle to confirm the features. Introduction Keep this manual in the vehicle for quick reference. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Keys, Doors, and Windows . . . . . . . . . . 6 Danger, Warning, and Caution Seats and Restraints . . . . . . . . . . . . . . . 29 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Instruments and Controls . . . . . . . . . . 80 Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Infotainment System . . . . . . . . . . . . . 130 Climate Controls . . . . . . . . . . . . . . . . . . 182 Driving and Operating . . . . . . . . . . . . 188 Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 266 Service and Maintenance . . . . . . . . . 328 Technical Data . . . . . . . . . . . . . . . . . . . . 341 Customer Information . . . . . . . . . . . . 346 OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 Index . . . . . . . . . . . . . . . . . . . . . . . . 356 Litho in U.S.A. Part No. 84652681 The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, the CADILLAC Emblem, and CADILLAC CT4 are trademarks and/or service marks of General Motors LLC, its subsidiaries, affiliates, or licensors. This manual describes features that may or may not be on the vehicle because of optional equipment that was not purchased on the vehicle, model variants, country specifications, features/applications that may not be available in your region, or changes subsequent to the printing of this owner’s manual. © Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them. { Danger Danger indicates a hazard with a high level of risk which will result in serious injury or death. { Warning Warning indicates a hazard that could result in injury or death. 2020 General Motors LLC. All Rights Reserved. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 2 INTRODUCTION Caution * : Shown when the service manual Caution indicates a hazard that could result in property or vehicle damage. 0 : Shown when there is more has additional instructions or information. information on another page — “see page.” Vehicle Symbol Chart A circle with a slash through it is a safety symbol which means “Do not,” “Do not do this,” or “Do not let this happen.” Symbols The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message, gauge, or indicator. M : Shown when the owner’s manual has additional instructions or information. Here are some additional symbols that may be found on the vehicle and what they mean. See the features in this manual for information. u : Air Conditioning System G : Air Conditioning Refrigerant Oil 9 : Airbag Readiness Light ! : Antilock Brake System (ABS) $ : Brake System Warning Light 9 : Dispose of Used Components Properly P : Do Not Apply High Pressure Water B : Engine Coolant Temperature _ : Flame/Fire Prohibited H : Flammable [ : Forward Collision Alert R : Fuse Block Cover Lock Location + : Fuses j : ISOFIX/LATCH System Child Restraints Q : Keep Fuse Block Covers Properly Installed | : Lane Change Alert @ : Lane Departure Warning A : Lane Keep Assist * : Malfunction Indicator Lamp : : Oil Pressure X : Park Assist ~ : Pedestrian Ahead Indicator O : Power 7 : Rear Cross Traffic Alert I : Registered Technician S : Remote Vehicle Start Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INTRODUCTION > : Seat Belt Reminders I : Side Blind Zone Alert h : Stop/Start 7 : Tire Pressure Monitor d : Traction Control/StabiliTrak/ Electronic Stability Control (ESC) a : Under Pressure V : Vehicle Ahead Indicator 3 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 4 INTRODUCTION Instrument Panel Overview Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INTRODUCTION 1. Air Vents 0 186. 2. Exterior Lamp Controls 0 122. Turn Signal Lever. See Turn and Lane-Change Signals 0 125. 3. Tap Shift Controls (If Equipped). See Manual Mode (Electronic Shifter) 0 219 or Manual Mode (Mechanical Shifter) 0 218. 4. Cruise Control 0 232. Adaptive Cruise Control (Advanced) 0 235 (If Equipped). Forward Collision Alert (FCA) System 0 251 (If Equipped). Heated Steering Wheel 0 81 (If Equipped). 5. Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. Driver Information Center (DIC) Display. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 6. Steering Wheel Controls 0 133 (If Equipped). 7. Windshield Wiper/Washer 0 81. 8. Infotainment Controls. See Overview 0 131. 9. Light Sensor. See Automatic Headlamp System 0 124. 10. Hazard Warning Flashers 0 125. 11. Dual Automatic Climate Control System 0 182. 12. Heated and Ventilated Front Seats 0 36 (If Equipped). 13. Lane Keep Assist (LKA) 0 259 (If Equipped). 14. Traction Control/Electronic Stability Control 0 223. Stop/Start Disable Switch. See Stop/ Start System 0 206. Automatic Vehicle Hold (AVH) 0 223. MODE Button or « /ª Button (V-Series Only). See Driver Mode Control 0 225. 15. Wireless Charging Pad (If Equipped) (Out of View). See Wireless Charging 0 84. 16. Park Assist Button. See Assistance Systems for Parking or Backing 0 245. 5 17. Shift Lever. See Automatic Transmission (Mechanical Shifter) 0 211 or Automatic Transmission (Electronic Shifter) 0 213. 18. ENGINE START/STOP Button. See Ignition Positions 0 204. 19. Horn 0 81. 20. Steering Wheel Adjustment 0 81. 21. Head-Up Display (HUD) 0 110 (If Equipped). 22. Hood Release (Out of View). See Hood 0 268. 23. Instrument Panel Illumination Control 0 126. 24. Data Link Connector (DLC) (Out of View). See Malfunction Indicator Lamp (Check Engine Light) 0 97. 25. Electric Parking Brake 0 221 (If Equipped). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 6 KEYS, DOORS, AND WINDOWS Keys, Doors, and Windows Keys and Locks Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . 7 Remote Vehicle Start . . . . . . . . . . . . . . 12 Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 14 Power Door Locks . . . . . . . . . . . . . . . . . 16 Delayed Locking . . . . . . . . . . . . . . . . . . . 16 Automatic Door Locks . . . . . . . . . . . . 16 Lockout Protection . . . . . . . . . . . . . . . . 17 Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 17 Doors Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Vehicle Security Vehicle Security . . . . . . . . . . . . . . . . . . . . 19 Vehicle Alarm System . . . . . . . . . . . . . 20 Immobilizer Operation . . . . . . . . . . . . 21 Exterior Mirrors Convex Mirrors . . . . . . . . . . . . . . . . . . . . Power Mirrors . . . . . . . . . . . . . . . . . . . . . . Folding Mirrors . . . . . . . . . . . . . . . . . . . . Heated Mirrors . . . . . . . . . . . . . . . . . . . . . Automatic Dimming Mirror . . . . . . . Reverse Tilt Mirrors . . . . . . . . . . . . . . . 22 23 23 24 24 24 Interior Mirrors Interior Rearview Mirrors . . . . . . . . . 25 Manual Rearview Mirror . . . . . . . . . . 25 Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Windows Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Power Windows . . . . . . . . . . . . . . . . . . . . 25 Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Keys and Locks Keys { Warning Leaving children in a vehicle with a remote key is dangerous and children or others could be seriously injured or killed. They could operate the power windows or other controls or make the vehicle move. The windows will function with the remote key in the vehicle, and children or others could be caught in the path of a closing window. Do not leave children in a vehicle with a remote key. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS To remove the mechanical key, press the button on the side of the remote key near the bottom, and pull the mechanical key out. Never pull the mechanical key out without pressing the button. If it becomes difficult to turn the key, inspect the key blade for debris. Periodically clean with a brush or pick. See your dealer if a new mechanical key is needed. 7 Remote Keyless Entry (RKE) System Operation The Keyless Access system allows for vehicle entry when the remote key is within 1 m (3 ft). See “Keyless Access Operation” later in this section. Other conditions can impact the performance of the remote key. See Remote Keyless Entry (RKE) System 0 7. Remote Keyless Entry (RKE) System The mechanical key inside the remote key is used for the driver door and glove box. If there is a decrease in the remote key operating range: . Check the distance. The remote key may be too far from the vehicle. . Check the location. Other vehicles or objects may be blocking the signal. . Check the remote key battery. See “Battery Replacement” later in this section. . If the remote key is still not working correctly, see your dealer or a qualified technician for service. Q : Press to lock all doors and the fuel door. The turn signal indicators may flash and/or the horn may sound on the second press to indicate locking. See Vehicle Personalization 0 114. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 8 KEYS, DOORS, AND WINDOWS If the driver door is open when Q is pressed and Open Door Anti-Lockout is enabled through vehicle personalization, all doors will lock and then the driver door will immediately unlock. See Vehicle Personalization 0 114. If the passenger door is open when Q is pressed, all doors lock. Pressing Q may also arm the alarm system. See Vehicle Alarm System 0 20. If equipped with remote folding mirror, pressing Q on the remote key may fold the mirrors. See Folding Mirrors 0 23. K : Press to unlock the driver door and the fuel door. Press again within five seconds to unlock all doors. The key can be programmed to unlock all doors on the first button press. See Vehicle Personalization 0 114. When remotely unlocking the vehicle at night, the headlamps and back-up lamps will come on for about 30 seconds to light your approach to the vehicle. The turn signal indicators may flash to indicate unlocking. Pressing K will disarm the alarm system. See Vehicle Alarm System 0 20. Press and hold K to remotely open the windows, if enabled. See Vehicle Personalization 0 114. If equipped with remote folding mirror, pressing K on the remote key may unfold the mirrors. See Folding Mirrors 0 23. S : Press S twice to start the engine from outside the vehicle using the remote key. See Remote Vehicle Start 0 12. 7 : Press and release one time to initiate vehicle locator. The exterior lamps flash and the horn chirps three times. Press and hold 7 for more than three seconds to sound the panic alarm. The horn sounds and the turn signal lamps flash for 30 seconds, or until 7 is pressed again or the vehicle is started. X : Press twice to release the trunk. Keyless Access Operation The Keyless Access system lets you lock and unlock the doors and access the trunk without removing the remote key from your pocket, purse, briefcase, etc. The remote key must be within 1 m (3 ft) of the trunk or door being opened. If equipped, there will be a button on the outside door handles. The Keyless Access system can be programmed to unlock all doors on the first door handle press from the driver door. Keyless unlocking can also be turned off. See Vehicle Personalization 0 114. If equipped with memory seats, remote keys 1 and 2 are linked to seating positions of memory 1 or 2. See Memory Seats 0 33. Keyless Unlocking/Locking from the Driver Door When the doors are locked and the remote key is within 1 m (3 ft) of the door handle, pressing the lock/unlock button on the driver door handle will unlock the driver door. When the driver door is unlocked using the Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS lock/unlock button, and the lock/ unlock button is press again with five seconds, all passenger doors will unlock. . Two door handle button presses If equipped with remote folding mirror, pressing the driver door handle button may fold and unfold the mirrors. See Folding Mirrors 0 23. Keyless Unlocking/Locking from the Passenger Doors were used to unlock all doors. . Any vehicle door has opened and all doors are now closed. When the doors are locked and the remote key is within 1 m (3 ft) of the door handle, pressing the door handle button on a passenger door handle will unlock all doors. Pressing the lock/unlock button will cause all doors to lock if any of the following occur: . The door handle button was used to unlock all doors. . Any vehicle door has opened and all doors are now closed. Disable/Enable Keyless Unlocking of Exterior Door Handles and Trunk Driver Door Shown, Passenger Similar Pressing the door handle button will cause all doors to lock if any of the following occur: . It has been more than five seconds since the first door handle button press. If equipped, keyless unlocking of the exterior door handles and trunk can be disabled and enabled. Disabling Keyless Unlocking: With the vehicle off, press and hold Q and K on the remote key at the same time for approximately three seconds. The turn signal lamps will flash four 9 times quickly to indicate access is disabled. Using any exterior handle to unlock the doors or open the trunk will cause the turn signal lamps to flash four times quickly, indicating access is disabled. If disabled, disarm the alarm system before starting the vehicle. Enabling Keyless Unlocking: With the vehicle off, press and hold Q and K on the remote key at the same time for approximately three seconds. The turn signal lamps will flash twice quickly to indicate access is enabled. Passive (Walkaway) Locking The Keyless Access system will lock the vehicle several seconds after all doors are closed if the vehicle is off and at least one remote key has been removed or none remain in the vehicle. The fuel door will also lock. If other electronic devices interfere with the remote key signal, the vehicle may not detect the remote key inside the vehicle. If passive (walkaway) locking is enabled, the doors may lock Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 10 KEYS, DOORS, AND WINDOWS with the remote key inside the vehicle. Do not leave the remote key in an unattended vehicle. To customize the doors to automatically lock when exiting the vehicle, see Vehicle Personalization 0 114. If equipped with remote folding mirror, passive (walkaway) locking may fold the mirrors. See Folding Mirrors 0 23. Temporary Disable of Passive (Walkaway) Locking Temporarily disable passive (walkaway) locking by pressing and holding K on the interior door switch with a door open for at least four seconds, or until three chimes are heard. Passive (walkaway) locking will then remain disabled until the vehicle is turned on. Remote Key Left In Vehicle Alert When the vehicle is turned off and a remoter key is left in the vehicle, the horn will chirp three times after all doors are closed. To turn on or off see Vehicle Personalization 0 114. Remote Key No Longer In Vehicle Alert If the vehicle is on, with a door open, and then all doors are closed, the vehicle will check for a remote key inside. If a remote key is not detected, the Driver Information Center (DIC) will display NO REMOTE DETECTED and the horn will chirp three times. This occurs only once each time the vehicle is driven. See Vehicle Personalization 0 114. Keyless Trunk Opening Press the touch pad on the rear of the trunk above the license plate if the remote key is within 1 m (3 ft). Mechanical Key Access To access a vehicle with a weak remote key battery, see Door Locks 0 14. Programming Remote Keys to the Vehicle Only remote keys programmed to this vehicle will work. If a remote key is lost or stolen, a replacement can be purchased and programmed through your dealer. When the replacement remote key is programmed to this vehicle, all remaining remote keys must also be reprogrammed. Any lost or stolen remote keys will no longer work once the new remote key is programmed. Starting the Vehicle with a Low Remote Key Battery If the remote key battery is weak or if there is interference with the signal, the DIC may display NO KEY FOUND, REPLACE BATTERY IN KEYor NO REMOTE KEY WAS DETECTED PLACE KEY IN KEY POCKET THEN START YOUR VEHICLE when starting the vehicle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS To start the vehicle: Warning (Continued) Caution be a choking hazard. If swallowed, internal burns can occur, resulting in severe injury or death. Seek medical attention immediately if a battery is swallowed. Always replace the battery with the correct type. Replacing the battery with an incorrect type could potentially create a risk of battery explosion. Dispose of used batteries according to instructions and local laws. Do not attempt to burn, crush, or cut the used battery, and avoid exposing the battery to environments with extremely low air pressures or high temperatures. { Warning 1. Place the remote key into the rear cupholder. 2. With the vehicle in P (Park) or N (Neutral) press the brake pedal and ENGINE START/STOP. Replace the remote key battery as soon as possible. Battery Replacement { Warning Never allow children to play with the remote key. The remote key contains a small battery, which can (Continued) 11 To avoid personal injury, do not touch metal surfaces on the remote key when it has been exposed to extreme heat. These surfaces can be hot to the touch at temperatures above 59 °C (138 °F). Caution When replacing the battery, do not touch any of the circuitry on the remote key. Static from your body could damage the remote key. Replace the battery if the DIC displays REPLACE BATTERY IN KEY. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 12 KEYS, DOORS, AND WINDOWS Remote Vehicle Start 1. Press the button on the side of the remote key near the bottom and pull the mechanical key out. Never pull the mechanical key out without pressing the button. This feature allows the engine to be started from outside the vehicle. S : This button on the remote key is for remote start. 2. Use the mechanical key blade in the slot to remove the battery cover by hand. 3. Remove the seal by pulling on the tab to access the battery. 4. Remove the old battery. Do not use a metal object. 5. Insert the new battery, negative side facing down. Replace with a CR2450 or equivalent battery. 6. Replace the seal, pushing it into the groove around the battery compartment. 7. Replace the battery cover by snapping it back into the remote key. 8. Reinsert the key. The climate control system will use the previous settings during a remote start. The rear window defogger may come on during remote start based on cold ambient conditions. The rear defog indicator light does not come on during remote start. If equipped, the heated and ventilated front seats may also come on when the vehicle personalization setting is enabled. See Heated and Ventilated Front Seats 0 36. If equipped with a remote start heated steering wheel, it may come on during a remote start. See Heated Steering Wheel 0 81. Laws in some local communities may restrict the use of remote starters. For example, some laws may require a person using remote start to have the vehicle in view. Check local regulations for any requirements. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS If your vehicle is low on fuel, do not use the remote start feature. The vehicle may run out of fuel. The remote key range may be shorter while the vehicle is running. Other conditions can affect the performance of the remote key. See Remote Keyless Entry (RKE) System 0 7. You are allowed multiple starts totaling 30 minutes of engine run time. The maximum run time of a single start is 15 minutes, and it will shut off automatically. You could do three 10 minute starts if you manually shut off after 10 minutes. The last 10 minute start would shut off automatically as your total 30 minutes will have been used. Starting the Engine Using Remote Start 1. Press S twice on the remote key. The turn signal lamps will flash. The lamps flash to confirm the request to remote start the vehicle has been received. During the remote start, the doors will be locked and the parking lamps will remain on as long as the engine is running. 2. The engine will shut off after 15 minutes or after the remainder of the 30 minute total running time is used, unless you stop the remote start before engine running has completed or the vehicle is turned on. 3. After entering the vehicle during a remote start, press the brake and ENGINE START/STOP with the remote key in the vehicle to drive the vehicle. Additional Engine Run Time Remote start can be used for up to 30 minutes of total engine run time. After two remote starts of 15 minutes, or multiple shorter time starts totaling 30 minutes have been used, the vehicle must be started normally before the remote start can be used again. Canceling a Remote Start To cancel a remote start, do any of the following: 13 S. The parking lamps will turn off. . Turn on the hazard warning flashers. . Turn the vehicle on and then back off. . Press Conditions in Which Remote Start Will Not Work The remote start will not operate if any of the following occur: . The ignition is in any mode other than off. . A remote key is in the vehicle. . The hood is not closed. . The hazard warning flashers are on. . There is an emission control system malfunction. . The engine coolant temperature is too high. . The oil pressure is low. . The 30 minutes of engine run time have been used. . The vehicle is not in P (Park). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 14 KEYS, DOORS, AND WINDOWS Door Locks { Warning Unlocked doors can be dangerous. . Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The doors can be unlocked and opened while the vehicle is moving. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked. So, all passengers should wear seat belts properly and the doors should be locked whenever the vehicle is driven. . Young children who get into unlocked vehicles may be unable to get out. A child can be overcome by extreme heat and can suffer permanent injuries or even death from heat stroke. Always lock the vehicle whenever leaving it. . Outsiders can easily enter through an unlocked door when you slow down or stop the (Continued) Warning (Continued) Keyless Access vehicle. Locking the doors can help prevent this from happening. To lock or unlock the doors from outside the vehicle: . Press Q or K on the remote key. See Remote Keyless Entry (RKE) System Operation 0 7. . Use the mechanical key in the driver door. The key lock cylinder is covered with a cap. See “Driver Door Key Lock Cylinder Access (In Case of Dead Battery)” later in this section. To lock or unlock the doors from inside the vehicle: Q or K on the power door lock switch. . Pull once on the door handle to unlock the door and again to open the door. . Press When the doors are locked and the remote key is within 1 m (3 ft) of the driver door handle, press the lock/ unlock button. When unlocking from the driver door, the first press unlocks that door; press again within five seconds to unlock the passenger door and the trunk. See Remote Keyless Entry (RKE) System Operation 0 7. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS Driver Door Key Lock Cylinder Access (In Case of Dead Battery) To access the driver door key lock cylinder: 1. Pull the door handle (1) to the open position and hold it open until the cap removal is complete. 2. Insert the mechanical key into the slot (3) on the bottom of the cap (2) and lift the mechanical key upward. 3. Move the cap (2) rearward and remove. 4. Use the mechanical key in the cylinder. 15 To replace the cap: 1. Pull the door handle (1) to the open position and hold it open until the cap installation is complete. 2. Insert the two tabs (6) at the back of the cap between the seal (5) and the metal base (4). 3. Slide the cap forward and press the forward edge to install the cap in place. 4. Release the door handle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 16 KEYS, DOORS, AND WINDOWS 5. Check that the cap is secure. Power Door Locks Free-Turning Locks The door key lock cylinder turns freely when either the wrong mechanical key is used, or the correct mechanical key is not fully inserted. The free-turning door lock feature prevents the lock from being forced open. To reset the lock, turn it to the vertical position with the correct mechanical key fully inserted. Remove the mechanical key and insert it again. If this does not reset the lock, turn the mechanical key halfway around in the cylinder and repeat the reset procedure. When Q is pressed on the power door lock switch with the door open, a chime will sound three times indicating that delayed locking is active. The doors will then lock automatically five seconds after all doors are closed. If a door is reopened before five seconds have elapsed, the five-second timer will reset once all the doors are closed again. Q : Press to lock the doors. The indicator light in the switch will illuminate when locked. K : Press to unlock the doors. If equipped, the fuel door is also locked or unlocked using these features. Delayed Locking This feature delays the actual locking of the doors until five seconds after all doors are closed. Press Q on the door lock switch again, or press Q on the key, to override this feature and lock the doors immediately. Delayed locking can be programmed. See Vehicle Personalization 0 114. Automatic Door Locks The doors will lock automatically when all doors are closed, the ignition is on, and the vehicle is shifted out of P (Park). If a vehicle door is unlocked, and then opened and closed, the doors will lock either when your foot is removed from the brake or the vehicle speed becomes faster than 13 km/h (8 mph). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS To unlock the doors: . Press K on the power door lock switch. . Shift the transmission into P (Park). Safety Locks 17 The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle. Automatic door locking can be enabled or disabled in settings. See Vehicle Personalization 0 114. Press { v to activate the safety locks on the rear doors. The indicator light in the switch will illuminate when activated. Lockout Protection The rear door power windows are also disabled. See Power Windows 0 25. If the vehicle is on or in ACC/ ACCESSORY and the power door lock switch is pressed with the driver door open, all the doors will lock and only the driver door will unlock. Press { v again to deactivate the safety locks. With Folding Mirrors If the vehicle is off and locking is requested while a door is open, when all doors are closed the vehicle will check for keys inside. If any remote key programmed to the vehicle is detected and the number of keys inside has not reduced, the driver door will unlock and the horn will chirp three times. Lockout Protection can be manually overridden with the driver door open by pressing and holding Q on the power door lock switch. Without Folding Mirrors If an inside rear door handle is being pulled at the same time the safety lock is deactivated, only that door will remain locked and the indicator light may flash. Release the handle, then press the safety lock twice to deactivate the safety locks. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 18 KEYS, DOORS, AND WINDOWS Doors Warning (Continued) Trunk . If the vehicle is equipped with a { Warning Exhaust gases can enter the vehicle if it is driven with the liftgate or trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/ hatch or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. power liftgate, disable the power liftgate function. See Engine Exhaust 0 211. Manual Trunk To release the trunk, the vehicle must be off or the shift lever must be in P (Park). . Press the touch pad on the rear of the trunk above the license plate when all doors are unlocked. The trunk can be opened while the vehicle is locked by pressing the touch pad above the license plate while the remote key is within 1 m (3 ft) of the rear of the vehicle. See Remote Keyless Entry (RKE) System Operation 0 7. If the vehicle must be driven with the liftgate or trunk/hatch open: . Close all of the windows. . Fully open the air outlets on or under the instrument panel. . Adjust the climate control system to a setting that brings in only outside air and set the fan speed to the highest setting. See “Climate Control Systems” in the Index. (Continued) . Press . Press | on the driver door. X twice quickly on the remote key. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS 19 Emergency Trunk Release Handle Caution Do not use the emergency trunk release handle as a tie-down or anchor point when securing items in the trunk as it could damage the handle. Close the trunk by pulling on the handle. Do not use the handle as a tie-down. Do not press the touch pad while closing the trunk; this will cause the trunk lid to be unlatched. Vehicle Security This vehicle has theft-deterrent features; however, they do not make the vehicle impossible to steal. The trunk has an electric latch. If the vehicle has lost power or the battery is disconnected, the trunk will not open. If this happens, use the emergency trunk release handle. There is a glow-in-the-dark emergency trunk release handle on the trunk lid. This handle will glow following exposure to light. Pull the release handle to open the trunk from the inside. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 20 KEYS, DOORS, AND WINDOWS Vehicle Alarm System This vehicle has an anti-theft alarm system. The indicator light, on the instrument panel near the windshield, indicates the status of the system. Off : Alarm system is disarmed. On Solid : Vehicle is secured during the delay to arm the system. Fast Flash : Vehicle is unsecured. A door, the hood, or the trunk is open. Slow Flash : Alarm system is armed. Arming the Alarm System 1. Turn off the vehicle. 2. Lock the vehicle in one of three ways: . Use the remote key. . Use the Keyless Access system. . With a door open, press Q on the interior of the door. 3. After 30 seconds the alarm system will arm, and the indicator light will begin to slowly flash indicating the alarm system is operating. Pressing Q on the remote key a second time will bypass the 30-second delay and immediately arm the alarm system. The vehicle alarm system will not arm if the doors are locked with the mechanical key. If the driver door is opened without first unlocking with the remote key, the horn will chirp and the lights will flash to indicate pre-alarm. If the vehicle is not started, or the door is not unlocked by pressing K on the remote key during the 10-second pre-alarm, the alarm will be activated. The alarm will also be activated if a passenger door, the trunk, or the hood is opened without first disarming the system. When the alarm is activated, the turn signals flash and the horn sounds for about 30 seconds. The alarm system will then re-arm to monitor the next unauthorized event. Disarming the Alarm System To disarm the alarm system or turn off the alarm if it has been activated: . Press K on the remote key. . Unlock the vehicle using the Keyless Access system. . Start the vehicle. To avoid setting off the alarm by accident: . Lock the vehicle after all occupants have left the vehicle and all doors are closed. . Always unlock a door with the remote key or use the Keyless Access system. Unlatching the driver door with the mechanical key will not disarm the system or turn off the alarm. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS How to Detect a Tamper Condition If K is pressed on the remote key and the horn chirps and the lights flash three times, a previous alarm occurred while the system was armed. If the alarm has been activated, a message will appear on the DIC. Power Sounder, Inclination Sensor, and Intrusion Sensor In addition to the standard theft-deterrent system features, this system may also have a power sounder, inclination sensor, and intrusion sensor. The power sounder provides an audible alarm which is distinct from the vehicle’s horn. It has its own power source, and can sound an alarm if the vehicle’s battery is compromised. The inclination sensor can set off the alarm if it senses movement of the vehicle, such as when a tire is removed. Make sure the vehicle's alarm is not armed prior to any jacking. The intrusion sensor monitors the vehicle interior, and can activate the alarm if it senses unauthorized entry into the vehicle's interior. Do not allow passengers or pets to remain in the vehicle when the intrusion sensor is activated. Before arming the theft-deterrent system and activating the intrusion sensor: . Make sure all doors and windows are completely closed. . Secure any loose items such as sun glasses. . Make sure there are no obstructions blocking the sensors in the front overhead console. 21 Inclination and Intrusion Sensor Disable Switch It is recommended that the intrusion and inclination sensor be deactivated if pets are left in the vehicle or the vehicle is being transported. With the vehicle turned off, press o in the front overhead console. The indicator light will come on momentarily, indicating that these sensors have been disabled for the next alarm system arming cycle. Immobilizer Operation This vehicle has a passive theft-deterrent system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 22 KEYS, DOORS, AND WINDOWS The system does not have to be manually armed or disarmed. The vehicle is automatically immobilized when the vehicle is turned off. The immobilization system is disarmed when the ignition is turned on or to ACC/ACCESSORY and a valid remote key is present in the vehicle. The security light, in the instrument cluster, comes on if there is a problem with arming or disarming the theft-deterrent system. The system has one or more remote keys matched to an immobilizer control unit in the vehicle. Only a correctly matched remote key will start the vehicle. If the remote key is ever damaged, you may not be able to start your vehicle. When trying to start the vehicle, the security light may come on briefly. If the engine does not start and the security light stays on, there is a problem with the system. Turn the ignition off and try again. If the vehicle will not change ignition modes (ACC/ACCESSORY, on, off), and the remote key appears to be undamaged, try another remote key. Or, you may try placing the remote key in the backup location. See Remote Keyless Entry (RKE) System Operation 0 7. If the ignition modes will not change with the other remote key or in the backup location, the vehicle needs service. If the ignition does change modes, the first remote key may be faulty. See your dealer. Exterior Mirrors Convex Mirrors { Warning A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the next lane, you could hit a vehicle that is driving next to you. Check the inside mirror or glance over your shoulder before changing lanes. It is possible for the immobilizer system to learn new or replacement remote keys. Up to eight remote keys can be programmed for the vehicle. To program additional remote keys, see “Programming Remote Keys to the Vehicle” under Remote Keyless Entry (RKE) System Operation 0 7. Do not leave the remote key or device that disarms or deactivates the theft-deterrent system in the vehicle. 1. Wide View Side 2. Convex Side Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS The driver outside mirror has two sides. The outboard side provides a wider field of view when viewing lanes that are next to the vehicle. The inboard side is convex shaped, which is curved so more can be seen from the driver seat. The passenger side mirror is convex shaped. Power Mirrors 2. Press the arrows on the control pad to move the mirror in the desired direction. 3. Adjust each outside mirror so that a little of the vehicle and the area behind it can be seen. 4. Press j or mirror. 23 Power Folding Mirrors | again to deselect the Memory Mirrors The vehicle may have memory mirrors. See Memory Seats 0 33. Side Blind Zone Alert (SBZA) The vehicle may have SBZA. See Side Blind Zone Alert (SBZA) 0 257. If equipped, press g to power fold the mirrors. Press g again to unfold. Lane Change Alert (LCA) The outside mirrors may automatically unfold when the vehicle is driven above 20 km/h (12 mph), but may be folded with the power folding mirror switch. If the vehicle speed is driven above 40 km/h (25 mph), they may automatically unfold and may not be refolded with the power folding mirror switch. The vehicle may have LCA. See Lane Change Alert (LCA) 0 257. Folding Mirrors Manual Folding Mirrors To adjust each mirror: 1. Press j or | to select the driver or passenger side mirror. The indicator light will illuminate. The mirrors can be folded inward toward the vehicle to prevent damage when going through an automatic car wash. Push the mirror outward to return it to the original position. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 24 KEYS, DOORS, AND WINDOWS Resetting the Power Folding Mirrors Reset the power folding mirrors if: . The mirrors are accidentally obstructed while folding. . They are accidentally manually folded/unfolded. . The mirrors do not stay in the unfolded position. . The mirrors vibrate at normal driving speeds. Fold and unfold the mirrors one time using the mirror controls to reset them to their normal position. A noise may be heard during the resetting of the power folding mirrors. This sound is normal after a manual folding operation. Remote Mirror Folding If equipped with power folding mirrors, and the mirrors have been folded with the power folding mirror switch, they may not be automatically unfolded by the Remote Mirror Folding feature. If equipped with power folding mirrors, and the mirrors have not been folded with the power folding mirror switch and the vehicle is in P (Park), they may be automatically folded/unfolded as follows: 1. If doors are locked by pressing H on the remote key, the mirrors will fold. If doors are unlocked by pressing I on the remote key, the mirrors will unfold. See Remote Keyless Entry (RKE) System Operation 0 7. 2. If doors are locked by pressing the door handle button, the mirrors will fold. If doors are unlocked by pressing the door handle button, the mirrors will unfold. See “Keyless Unlocking/Locking from the Driver Door” in Remote Keyless Entry (RKE) System Operation 0 7. 3. If passive locking is enabled and doors are locked by that feature, the mirrors will fold. See “Passive Locking” in Remote Keyless Entry (RKE) System Operation 0 7. Heated Mirrors K : The rear window defogger also heats the outside mirrors. See Dual Automatic Climate Control System 0 182. Automatic Dimming Mirror If the vehicle has the automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of headlamps behind you. Reverse Tilt Mirrors If equipped with reverse tilt mirrors and memory seats, the passenger and/ or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This allows the curb to be seen when parallel parking. The mirror(s) may move from their tilted position when: . The vehicle is shifted out of R (Reverse), or remains in R (Reverse) for about 30 seconds. . The ignition is turned off. . The vehicle is driven in R (Reverse) above a set speed. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS Turn this feature on or off through vehicle personalization. See Vehicle Personalization 0 114. Interior Mirrors Interior Rearview Mirrors Adjust the rearview mirror for a clear view of the area behind the vehicle. Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. Windows { Warning Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Manual Rearview Mirror If equipped, push the tab forward for daytime use and pull it rearward for nighttime use to avoid glare of the headlamps from behind. Automatic Dimming Rearview Mirror If equipped, automatic dimming reduces the glare of headlamps from behind. The dimming feature comes on when the vehicle is started. The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the front 25 windows are up. To reduce the sound, open either a front window or the sunroof, if equipped. Power Windows { Warning Children could be seriously injured or killed if caught in the path of a closing window. Never leave the remote key in a vehicle with children. When there are children in the rear seat, use the window lockout switch to prevent operation of the windows. See Keys 0 6. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 26 KEYS, DOORS, AND WINDOWS Power windows work when the ignition is on, in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) 0 207. Using the window switch, press to open or pull to close the window. The windows may be temporarily disabled if they are used repeatedly within a short time. Window Lockout { 2 to engage the rear window lockout feature. The indicator light is on when engaged. The rear door safety locks will also engage. . Press { 2 again to disengage. The rear door safety locks will also disengage. . Press Window Express Movement All windows can be opened without holding the window switch. Press the switch down fully and quickly release to express open the window. If equipped, pull the window switch up fully and quickly release to express close the window. Briefly press or pull the window switch in the same direction to stop that window’s express movement. Window Automatic Reversal System With Folding Mirrors, Without Folding Mirrors Similar This feature stops the rear passenger window switches from working. The express-close feature will reverse window movement if it comes in contact with an object. Extreme cold or ice could cause the window to auto-reverse. The window will operate normally after the object or condition is removed. Automatic Reversal System Override { Warning If automatic reversal system override is active, the window will not reverse automatically. You or others could be injured and the window could be damaged. Before using automatic reversal system override, make sure that all people and obstructions are clear of the window path. When the engine is on, override the automatic reversal system by pulling and holding the window switch if conditions prevent it from closing. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 KEYS, DOORS, AND WINDOWS Programming the Power Windows Programming may be necessary if the vehicle battery has been disconnected or discharged. If the window is unable to express-up, program each express-close window: 1. Close all doors. 2. Turn the ignition on or to ACC/ ACCESSORY. 3. Partially open the window to be programmed. Then close it and continue to pull the switch briefly after the window has fully closed. 4. Open the window and continue to press the switch briefly after the window has fully opened. Remote Window Operation If equipped, this feature allows all the windows to be opened remotely. If enabled in vehicle personalization, press and hold K on the remote key for about three seconds. See Vehicle Personalization 0 114. Sun Visors The sunroof cannot be opened or closed if the vehicle has an electrical failure. Pull the sun visor down to block glare. Detach the sun visor from the center mount to pivot to the side window and, if equipped, extend along the rod. Roof Sunroof If equipped, the ignition must be on or in ACC/ACCESSORY, or Retained Accessory Power (RAP) must be active to operate the sunroof. See Ignition Positions 0 204 and Retained Accessory Power (RAP) 0 207. While operating in express, movement can be stopped by pressing the switch again. 27 1. SLIDE Switch 2. TILT Switch Sunroof Operation: . Press and release D (1) to express-open to the fully open position. . Pull and release D (1) to express-close. . Press or pull and hold D (1) to open or close without express. Release D (1) at the desired position. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 28 KEYS, DOORS, AND WINDOWS Sunroof Vent Operation: . Press and release E (2) to vent the sunroof. . Pull and release E (2) to close the sunroof vent. This sunroof also has a sunshade, which must be opened and closed manually. Automatic Reversal System The sunroof, if equipped, has an automatic reversal system that is only active when the sunroof is operated in express-close mode. If an object is in the path while express-closing, the reversal system will detect an object, stop, and open the sunroof slightly. If this condition occurs, attempt to remove the object, then pull and release the switch to express close. If the reversal occurs multiple times, the DIC message OPEN THEN CLOSE SUNROOF will display, and express is disabled. To operate sunroof while express is disabled, the switch must be either pressed or pulled and held. Dirt and debris may collect on the sunroof seal or in the track. This could cause an issue with sunroof operation or noise. It could also plug the water drainage system. Periodically open the sunroof and remove any obstacles or loose debris. Wipe the sunroof seal and roof sealing area using a clean cloth, mild soap, and water. Do not remove grease from the sunroof. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Seats and Restraints Head Restraints Head Restraints . . . . . . . . . . . . . . . . . . . . 30 Front Seats Power Seat Adjustment . . . . . . . . . . . Lumbar Adjustment . . . . . . . . . . . . . . . Thigh Support Adjustment . . . . . . . . Reclining Seatbacks . . . . . . . . . . . . . . . Memory Seats . . . . . . . . . . . . . . . . . . . . . . Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 31 32 32 33 36 37 Rear Seats Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Seat Belts Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . . Safety System Check . . . . . . . . . . . . . . Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . Airbag System Airbag System . . . . . . . . . . . . . . . . . . . . . 46 Where Are the Airbags? . . . . . . . . . . . 48 When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 What Makes an Airbag Inflate? . . . 50 How Does an Airbag Restrain? . . . 50 What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Passenger Sensing System . . . . . . . . 52 Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . 56 Airbag System Check . . . . . . . . . . . . . . 57 Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 57 Child Restraints 39 40 42 44 45 45 46 Older Children . . . . . . . . . . . . . . . . . . . . . Infants and Young Children . . . . . . Child Restraint Systems . . . . . . . . . . . Where to Put the Restraint . . . . . . . Lower Anchors and Tethers for Children (LATCH System) . . . . . . . Replacing LATCH System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . Securing Child Restraints (With the Seat Belt in the Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . . 57 59 61 63 64 70 70 29 Securing Child Restraints (With the Seat Belt in the Front Seat) . . . . . . . . . . . . . . . . . . . . . . . 72 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 30 SEATS AND RESTRAINTS Head Restraints { Warning With head restraints that are not installed and adjusted properly, there is a greater chance that occupants will suffer a neck/spinal injury in a crash. Do not drive until the head restraints for all occupants are installed and adjusted properly. Front Seats Rear Seats The vehicle's front seats have adjustable head restraints in the outboard seating positions. The vehicle's rear seat has adjustable head restraints in the outboard seating positions. The height of the head restraint can be adjusted. Pull the head restraint up to raise it. Try to move the head restraint to make sure that it is locked in place. The height of the head restraint can be adjusted. Adjust the head restraint so that the top of the restraint is at the same height as the top of the occupant's head. This position reduces the chance of a neck injury in a crash. To raise or lower the head restraint, press the button located on the side of the head restraint, and pull up or push the head restraint down and release the button. Pull and push on the head restraint after the button is released to make sure that it is locked in place. The front seat outboard head restraints are not removable. To lower the head restraint, press the button, located on the top of the seatback, and push the head restraint down. Try to move the head restraint after the button is released to make sure that it is locked in place. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS If something has blocked the seat during movement, the movement may stop. Remove the obstruction and try the adjustment again. If movement is still not available, see your dealer. Rear outboard head restraints are not removable. The rear seat outboard head restraints are not intended to be removed. If removal is required see your dealer for assistance with removal. To adjust the seatback, see Reclining Seatbacks 0 32. Front Seats To adjust the lumbar support, see Lumbar Adjustment 0 31. Power Seat Adjustment { Warning You can lose control of the vehicle if you try to adjust a driver seat while the vehicle is moving. Adjust the driver seat only when the vehicle is not moving. { Warning The power seats will work with the ignition off. Children could operate the power seats and be injured. Never leave children alone in the vehicle. 31 To adjust the seat: . Move the seat forward or rearward by sliding the control forward or rearward. . Raise or lower the seat by moving the rear of the control up or down. . If equipped, raise or lower the front part of the seat cushion by moving the front of the control up or down. For vehicles not equipped with front cushion tilt, the front part of the control will raise and lower the seat. If the vehicle is not in P (Park), seat travel may be limited. Release and press the seat switch again to continue movement. Some vehicles are equipped with a Safety Alert Seat. This feature activates a vibrating pulse alert in the driver seat to help the driver avoid crashes. Lumbar Adjustment Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 32 SEATS AND RESTRAINTS 1. To adjust lumbar support, if equipped: . If equipped, press Up (1) to move lumbar support upward. . Press Rearward (2) to move lumbar support rearward. . If equipped, press Down (3) to move lumbar support down. . Press Forward (4) to move lumbar support forward. Uplevel Seat Adjustment . Press Forward (5) or Rearward (3) to adjust lumbar forward or rearward. . Press Up (2) or Down (4) to adjust lumbar up or down. If equipped, pull up on the lever. Then pull or push on the support to lengthen or shorten. Release the lever to lock in place. Bolster Support Reclining Seatbacks To adjust bolster support, if equipped: Press and release or hold Feature Select (1) to scroll to bolster support on the infotainment display. Press Forward (5) or Rearward (3) to adjust bolster support inward or outward. Thigh Support Adjustment { Warning Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the seat belts cannot do their job. The shoulder belt will not be against your body. Instead, it will be in front of you. In a crash, you could go into it, receiving neck or other injuries. The lap belt could go up over your abdomen. The belt forces would be there, not at your pelvic bones. This could cause serious internal injuries. To adjust lumbar support, if equipped: . Press and release or hold Feature Select (1) to scroll to lumbar support on the infotainment display. For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear the seat belt properly. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS To adjust the seatback: . Tilt the top of the control rearward to recline. . Tilt the top of the control forward to raise. Memory Seats Do not have a seatback reclined if the vehicle is moving. If equipped, memory seats allow two drivers to save and recall their unique seat positions for driving the vehicle, and a shared exit position for getting out of the vehicle. Other feature positions may also be saved, such as power mirrors and power steering wheel, if equipped. Memory positions are linked to remote key 1 or 2 for automatic memory recalls. 33 Before saving, adjust all available memory feature positions. Turn the vehicle on and then press and release SET; a beep will sound. Then immediately press and hold 1, 2, or B (Exit) until two beeps sound. To manually recall these positions, press and hold 1, 2, or B until the saved position is reached. Follow the instructions under “Saving Memory Positions.” The vehicle identifies the current driver’s remote key number (1–8). See Remote Keyless Entry (RKE) System Operation 0 7. Only remote keys 1 and 2 can be used for automatic memory recalls. A Driver Information Center (DIC) welcome message indicating the remote key number may display for the first few ignition cycles following a remote key change. For Seat Entry Memory to work properly, save the positions to the memory button (1 or 2) matching the remote key number displayed in the DIC welcome message. Carry the linked remote key when entering the vehicle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 34 SEATS AND RESTRAINTS Vehicle Personalization Settings . To have the Seat Entry Memory movement begin when the vehicle is started, select the Settings menu, then Vehicle, then Seating Position, and then Seat Entry Memory. Select On or Off. See “Seat Entry Memory” later in this section. . To begin Seat Exit Memory movement when the vehicle is turned off and the driver door is opened, or when the vehicle is turned off with the driver door already opened, select the Settings menu, then Vehicle, then Seating Position, and then Seat Exit Memory. Select On or Off. See “Seat Exit Memory” later in this section. . See Vehicle Personalization 0 114 for additional setting information. Identifying Driver Number To identify the driver number: 1. Move your remote key away from the vehicle. 2. Start the vehicle with another remote key. The DIC should display the driver number for the other remote key. Turn the vehicle off and remove the remote key from the vehicle. 3. Start the vehicle with the initial remote key. The DIC should display the driver number of your remote key. Saving Memory Positions Read these instructions completely before saving memory positions. To save preferred driving positions 1 and 2: 1. Turn the vehicle on or to ACC/ ACCESSORY with remote key 1 or 2. A DIC welcome message may indicate driver number 1 or 2. 2. Adjust all available memory features to the desired driving position. 3. Press and release SET; a beep will sound. 4. Immediately press and hold the 1 or 2 memory button matching the above DIC welcome message until two beeps sound. If too much time passes between releasing SET and pressing 1, the memory position will not be saved and two beeps will not sound. Repeat Steps 3 and 4. 1 or 2 corresponds to the driver number. See “Identifying Driver Number” previously in this section. 5. Repeat Steps 1–4 for a second driver using 1 or 2. To save the position for B and Seat Exit Memory features, repeat Steps 1– 4 using B. This saves the position for getting out of the vehicle. Save preferred memory feature positions to both 1 and 2 if you are the only driver. Manually Recalling Memory Positions Press and hold 1, 2, or B to recall the previously saved memory positions if you are driver 1 or 2 identified in the DIC welcome message. To stop Manual Memory recall movement, release 1, 2, or B or press any of the following controls: . Power seat Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS . Memory SET . Power mirror, with the driver or passenger side mirror selected . Power steering wheel, if equipped Manual Memory recall movement for 1, 2, or B buttons may be initiated and may complete to the saved memory position if the vehicle is in or out of P (Park). Seat Entry Memory The vehicle identifies the number of the current driver’s remote key (1–8). See Remote Keyless Entry (RKE) System Operation 0 7. If the remote key is 1 or 2, and Seat Entry Memory is enabled in vehicle personalization, the positions saved to the same memory button number 1 or 2 are automatically recalled when the vehicle is turned on. Remote keys 3–8 will not provide automatic memory recalls. To turn Seat Entry Memory on or off, see “Vehicle Personalization Settings” previously in this section and Vehicle Personalization 0 114. The shift lever must be in P (Park) to start Seat Entry Memory. Seat Entry Memory recall will complete if the vehicle is shifted out of P (Park) prior to reaching the saved memory position. To stop Seat Entry Memory recall movement, turn the vehicle off or press any of the following controls: . Power seat . Memory SET, 1, 2, or B . Power mirror, with the driver or passenger side mirror selected . Power steering wheel, if equipped If the saved memory seat position does not automatically recall or recalls to the wrong positions, the driver’s remote key number (1 or 2) may not match the memory button number that positions were saved to. Try storing the position to the other memory button or try the other remote key. Seat Exit Memory Seat Exit Memory is not linked to a remote key. The position saved to B is used for all drivers. To turn Seat 35 Exit Memory on or off, see "Vehicle Personalization Settings" previously in this section and Vehicle Personalization 0 114. If turned on, the position saved to B is automatically recalled when one of the following occurs: . The vehicle is turned off and the driver door is opened within a short time. . The vehicle is turned off with the driver door open. To stop Seat Exit Memory movement, press any of the following memory controls: . Power seat . Memory SET, 1, 2, or B . Power mirror, with the driver or passenger side mirror selected . Power steering wheel, if equipped Obstructions If something has blocked the driver seat while recalling a memory position, the recall may stop. Remove the obstruction and try the recall again. If the memory position still does not recall, see your dealer. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 36 SEATS AND RESTRAINTS Heated and Ventilated Front Seats front heated seats are on high, the level may automatically be lowered after approximately 30 minutes. When this feature is off, the heated and ventilated seat symbols on the buttons are white. A ventilated seat has a fan that pulls air through the seat. The air is not cooled. When a heated seat is turned on, the symbol turns red. When a ventilated seat is turned on, the symbol turns blue. { Warning If temperature change or pain to the skin cannot be felt, the seat heater may cause burns. To reduce the risk of burns, use care when using the seat heater, especially for long periods of time. Do not place anything on the seat that insulates against heat, such as a blanket, cushion, cover, or similar item. This may cause the seat heater to overheat. An overheated seat heater may cause a burn or may damage the seat. If equipped, the buttons are near the climate controls on the center stack. To operate, the engine must be running. Press J or z to heat the driver or passenger seat cushion and seatback. Press C or { to ventilate the driver or passenger seat. Press the button once for the highest setting. With each press of the button, the seat will change to the next lower setting, and then to the off setting. The indicator lights next to the buttons indicate three for the highest setting and one for the lowest. If the The passenger seat may take longer to heat up. Auto Heated and Ventilated Seats If the vehicle is equipped with auto heated or ventilated seats, and the engine is running, this feature will automatically activate the heated or ventilated seats at the level required by the vehicle's interior temperature. The active high, medium, low, or off heated or ventilated seat level will be indicated by the manual heated and ventilated seat buttons on the center stack. Use the manual heated and ventilated seat buttons on the center stack to turn auto heated or ventilated seats off. If the passenger seat is Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS unoccupied, the auto heated or ventilated seats feature will not activate that seat. The auto heated and ventilated seats feature can be programmed to always be enabled when the vehicle is on. If equipped with a heated steering wheel, the auto heated steering wheel activation will follow the heated seat auto activation and the heated wheel indicator will follow the state of the steering wheel heat. Remote Start Heated and Ventilated Seats If equipped, the heated seats will turn on automatically during a remote start if it is cold outside and the ventilated seats will turn on automatically if it is hot outside. If equipped, the heated steering wheel will turn on automatically during a remote start if it is cold outside. The heated and ventilated seat indicators and heated steering wheel indicator may come on during this operation. The heated and ventilated seats and heated steering wheel may cancel when the vehicle is started. These features can be manually selected after the ignition is turned on. The temperature performance of an unoccupied seat may be reduced. This is normal. The remote start heated or ventilated seats can be enabled or disabled in the vehicle personalization menu. See Remote Vehicle Start 0 12 and Vehicle Personalization 0 114. Massage 37 If equipped, the ignition must be on to use the massage feature. To turn the massage feature on or off press the massage control button. When the massage feature is turned off, it will complete the massage cycle before returning to the initial position. Rear Seats Rear Seat Reminder If equipped, the message REAR SEAT REMINDER LOOK IN REAR SEAT displays under certain conditions indicating there may be an item or passenger in the rear seat. Check before exiting the vehicle. This feature will activate when a second row door is opened while the vehicle is on or up to 10 minutes before the vehicle is turned on. There will be an alert when the vehicle is turned off. The alert does not directly detect objects in the rear seat; instead, under certain conditions, it detects when a rear door is opened and closed, indicating that there may be something in the rear seat. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 38 SEATS AND RESTRAINTS The feature is active only once each time the vehicle is turned on and off, and will require reactivation by opening and closing the second row doors. There may be an alert even when there is nothing in the rear seat; for example, if a child entered the vehicle through the rear door and left the vehicle without the vehicle being shut off. To fold the seatback: The feature can be turned on or off. See Vehicle Personalization 0 114. Folding the Seatback Either side of the seatback can be folded for more cargo space. Fold a seatback only when the vehicle is not moving. Caution Folding a rear seat with the seat belts still fastened may cause damage to the seat or the seat belts. Always unbuckle the seat belts and return them to their normal stowed position before folding a rear seat. 1. Disconnect the rear seat belt mini-latch using a key in the slot on the mini-buckle, and let the belt retract. 2. Pull the lever on top of the seatback toward you to unlock the seatback. A red tab near the seatback lever raises when the seatback is unlocked. 3. Fold the seatback forward. Repeat Steps 2 and 3 to fold the other seatback, if desired. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Raising the Seatback { Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked. { Warning A seat belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash. The person wearing the belt could be seriously injured. After raising the rear seatback, always check to be sure that the seat belts are properly routed and attached, and are not twisted. To raise a seatback: 1. Lift the seatback up. Make sure the center seat belt and latch do not get trapped behind the seat. Push the seatback rearward to lock it in place. A red tab near the seatback lever retracts when the seatback is locked in place. 2. Push and pull the top of the seatback to be sure it is locked into position. 3. Reconnect the center seat belt mini-latch to the mini-buckle. Do not let the belt twist. 4. Pull on the center seat belt to make sure the mini-latch is secure. 5. Repeat the steps to raise the other seatback, if necessary. When the seat is not in use, it should be kept in the upright, locked position. Seat Belts This section describes how to use seat belts properly, and some things not to do. 39 { Warning Do not let anyone ride where a seat belt cannot be worn properly. In a crash, if you or your passenger(s) are not wearing seat belts, injuries can be much worse than if you are wearing seat belts. You can be seriously injured or killed by hitting things inside the vehicle harder or by being ejected from the vehicle. In addition, anyone who is not buckled up can strike other passengers in the vehicle. It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, passengers riding in these areas are more likely to be seriously injured or killed. Do not allow passengers to ride in any area of the vehicle that is not equipped with seats and seat belts. Always wear a seat belt, and check that all passenger(s) are restrained properly too. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 40 SEATS AND RESTRAINTS This vehicle has indicators as a reminder to buckle the seat belts. See Seat Belt Reminders 0 95. the forces from the seat belts. That is why wearing seat belts makes such good sense. Why Seat Belts Work Questions and Answers About Seat Belts Q: Will I be trapped in the vehicle after a crash if I am wearing a seat belt? A: You could be — whether you are wearing a seat belt or not. Your chance of being conscious during and after a crash, so you can unbuckle and get out, is much greater if you are belted. When riding in a vehicle, you travel as fast as the vehicle does. If the vehicle stops suddenly, you keep going until something stops you. It could be the windshield, the instrument panel, or the seat belts! When you wear a seat belt, you and the vehicle slow down together. There is more time to stop because you stop over a longer distance and, when worn properly, your strongest bones take Q: If my vehicle has airbags, why should I have to wear seat belts? A: Airbags are supplemental systems only. They work with seat belts — not instead of them. Whether or not an airbag is provided, all occupants still have to buckle up to get the most protection. Also, in nearly all regions, the law requires wearing seat belts. How to Wear Seat Belts Properly Follow these rules for everyone's protection. There are additional things to know about seat belts and children, including smaller children and infants. If a child will be riding in the vehicle, see Older Children 0 57 or Infants and Young Children 0 59. Review and follow the rules for children in addition to the following rules. It is very important for all occupants to buckle up. Statistics show that unbelted people are hurt more often in crashes than those who are wearing seat belts. There are important things to know about wearing a seat belt properly. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 41 able to take belt restraining forces. The shoulder belt locks if there is a sudden stop or crash. { Warning You can be seriously injured, or even killed, by not wearing your seat belt properly. . Sit up straight and always keep your feet on the floor in front of you (if possible). . Always use the correct buckle for your seating position. . Wear the lap part of the belt low and snug on the hips, just touching the thighs. In a crash, this applies force to the strong pelvic bones and you would be less likely to slide under the lap belt. If you slid under it, the belt would apply force on your abdomen. This could cause serious or even fatal injuries. . Wear the shoulder belt over the shoulder and across the chest. These parts of the body are best Never allow the lap or shoulder belt to become loose or twisted. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 42 SEATS AND RESTRAINTS Lap-Shoulder Belt All seating positions in the vehicle have a lap-shoulder belt. If you are using a rear seating position with a detachable seat belt and the seat belt is not attached, see Rear Seats 0 37 for instructions on reconnecting the seat belt to the mini-buckle. Never wear the shoulder belt under both arms or behind your back. Never route the lap or shoulder belt over an armrest. { Warning The seat belt can be pinched if it is routed under plastic trim on the seat, such as trim around the rear seatback folding handle or side airbag. In a crash, pinched seat belts might not be able to provide adequate protection. Never allow seat belts to be routed under plastic trim pieces. Always use the correct buckle for your seating position. The following instructions explain how to wear a lap-shoulder belt properly. 1. Adjust the seat, if the seat is adjustable, so you can sit up straight. To see how, see “Seats” in the Index. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 43 the belt go back to stowed position on the seat, move the seat rearward or recline the seat until the shoulder belt retractor lock releases. Engaging the child restraint locking feature in the front outboard seating position may affect the passenger sensing system. See Passenger Sensing System 0 52. 2. Pick up the latch plate and pull the belt across you. Do not let it get twisted. The lap-shoulder belt may lock if you pull the belt across you very quickly. If this happens, let the belt go back slightly to unlock it. Then pull the belt across you more slowly. If the shoulder portion of a passenger belt is pulled out all the way, the child restraint locking feature may be engaged. See Child Restraint Systems 0 61. If this occurs, let the belt go back all the way and start again. If the locking feature stays engaged after letting 4. To make the lap part tight, pull up on the shoulder belt. It may be necessary to pull the webbing firmly, through the adjustable stop, or move the adjustable stop along the webbing toward the outboard floor anchor, to fully tighten the lap belt across the lap. 3. Push the latch plate into the buckle until it clicks. Pull up on the latch plate to make sure it is secure. Position the release button on the buckle so that the seat belt could be quickly unbuckled if necessary. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 44 SEATS AND RESTRAINTS To unlatch the belt, push the button on the buckle. The belt should return to its stowed position. Slide the adjustable stop along the webbing toward the guide loop when the seat belt is not in use to prevent the latch plate from rattling against the interior trim. Always stow the seat belt slowly. If the seat belt webbing returns quickly to the stowed position, the retractor may lock and cannot be pulled out. If this happens, pull the seat belt straight out firmly to unlock the webbing, and then release it. If the webbing is still locked in the retractor, see your dealer. Before a door is closed, be sure the seat belt is out of the way. If a door is slammed against a seat belt, damage can occur to both the seat belt and the vehicle. Do not sit on the outboard seat belt while entering or exiting the vehicle or at any time while sitting in the seat. Sitting on the seat belt can damage the webbing and hardware. Seat Belt Pretensioners Rear Seat Belt Comfort Guides This vehicle has seat belt pretensioners for the front outboard occupants. Although the seat belt pretensioners cannot be seen, they are part of the seat belt assembly. They can help tighten the seat belts during the early stages of a moderate to severe frontal, near frontal, or rear crash if the threshold conditions for pretensioner activation are met. Seat belt pretensioners can also help tighten the seat belts in a side crash or a rollover event. Rear seat belt comfort guides may provide added seat belt comfort for older children who have outgrown booster seats and for some adults. When installed on a shoulder belt, the comfort guide positions the shoulder belt away from the neck and head. Pretensioners work only once. If the pretensioners activate in a crash, the pretensioners and probably other parts of the vehicle's seat belt system will need to be replaced. See Replacing Seat Belt System Parts after a Crash 0 46. Comfort guides are available through your dealer for the rear outboard seating positions. Instructions are included with the guides. Seat Belt Use During Pregnancy Seat belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear seat belts. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout the pregnancy. The best way to protect the fetus is to protect the mother. When a seat belt is worn properly, it is more likely that the fetus will not be hurt in a crash. For pregnant women, as for anyone, the key to making seat belts effective is wearing them properly. Safety System Check Periodically check the seat belt reminder, seat belts, buckles, latch plates, retractors, shoulder belt height adjusters (if equipped), and seat belt anchorages to make sure they are all in working order. Look for any other loose or damaged seat belt system parts that might keep a seat belt system from performing properly. See your dealer to have it repaired. Torn, frayed, or twisted seat belts may not protect you in a crash. Torn or frayed seat belts can rip apart under impact forces. If a belt is torn or frayed, have it replaced immediately. If a belt is twisted, it may be possible to untwist by reversing the latch plate on the webbing. If the twist cannot be corrected, ask your dealer to fix it. Make sure the seat belt reminder light is working. See Seat Belt Reminders 0 95. Keep seat belts clean and dry. See Seat Belt Care 0 45. Seat Belt Care Keep belts clean and dry. Seat belts should be properly cared for and maintained. 45 Seat belt hardware should be kept dry and free of dust or debris. As necessary, exterior hard surfaces and seat belt webbing may be lightly cleaned with mild soap and water. Ensure there is not excessive dust or debris in the mechanism. If dust or debris exists in the system please see the dealer. Parts may need to be replaced to ensure proper functionality of the system. { Warning Do not bleach or dye seat belt webbing. It may severely weaken the webbing. In a crash, they might not be able to provide adequate protection. Clean and rinse seat belt webbing only with mild soap and lukewarm water. Allow the webbing to dry. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 46 SEATS AND RESTRAINTS Replacing Seat Belt System Parts after a Crash { Warning A crash can damage the seat belt system in the vehicle. A damaged seat belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the seat belt systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible. After a minor crash, replacement of seat belts may not be necessary. But the seat belt assemblies that were used during any crash may have been stressed or damaged. See your dealer to have the seat belt assemblies inspected or replaced. New parts and repairs may be necessary even if the seat belt system was not being used at the time of the crash. Have the seat belt pretensioners checked if the vehicle has been in a crash, or if the airbag readiness light stays on after you start the vehicle or while you are driving. See Airbag Readiness Light 0 95. Airbag System The vehicle has the following airbags: . A frontal airbag for the driver . A frontal airbag for the front outboard passenger . A knee airbag for the driver. . A knee airbag for the front outboard passenger. . A seat-mounted side impact airbag for the driver . A seat-mounted side impact airbag for the front outboard passenger . A roof-rail airbag for the driver and the passenger seated directly behind the driver . A roof-rail airbag for the front outboard passenger and the passenger seated directly behind the front outboard passenger All vehicle airbags have the word AIRBAG on the trim or on a label near the deployment opening. For frontal airbags, the word AIRBAG is on the center of the steering wheel for the driver and on the instrument panel for the front outboard passenger. For knee airbags, the word AIRBAG is on the lower part of the instrument panel. For seat-mounted side impact airbags, the word AIRBAG is on the side of the seatback or side of the seat closest to the door. For roof-rail airbags, the word AIRBAG is on the ceiling or trim. Airbags are designed to supplement the protection provided by seat belts. Even though today's airbags are also designed to help reduce the risk of injury from the force of an inflating bag, all airbags must inflate very quickly to do their job. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Here are the most important things to know about the airbag system: { Warning You can be severely injured or killed in a crash if you are not wearing your seat belt, even with airbags. Airbags are designed to work with seat belts, not replace them. Also, airbags are not designed to inflate in every crash. In some crashes seat belts are the only restraint. See When Should an Airbag Inflate? 0 49. Wearing your seat belt during a crash helps reduce your chance of hitting things inside the vehicle or being ejected from it. Airbags are “supplemental restraints” to the seat belts. Everyone in the vehicle should wear a seat belt properly, whether or not there is an airbag for that person. 47 { Warning { Warning Because airbags inflate with great force and faster than the blink of an eye, anyone who is up against, or very close to, any airbag when it inflates can be seriously injured or killed. Do not sit unnecessarily close to any airbag, as you would be if sitting on the edge of the seat or leaning forward. Seat belts help keep you in position before and during a crash. Always wear a seat belt, even with airbags. The driver should sit as far back as possible while still maintaining control of the vehicle. The seat belts and the front outboard passenger airbags are most effective when you are sitting well back and upright in the seat with both feet on the floor. Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Always secure children properly in the vehicle. To read how, see Older Children 0 57 or Infants and Young Children 0 59. Occupants should not lean on or sleep against the door or side windows in seating positions with seat-mounted side impact airbags and/or roof-rail airbags. There is an airbag readiness light on the instrument cluster, which shows the airbag symbol. The system checks the airbag electrical system for malfunctions. The light tells you if there is an electrical problem. See Airbag Readiness Light 0 95. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 48 SEATS AND RESTRAINTS Where Are the Airbags? The driver frontal airbag is in the center of the steering wheel. The front outboard passenger frontal airbag is in the passenger side instrument panel. The driver knee airbag is below the steering column. The front outboard passenger knee airbag is below the glove box. Driver Side Shown, Passenger Side Similar The driver and front outboard passenger seat-mounted side impact airbags are in the side of the seatbacks closest to the door. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Warning (Continued) put anything between an occupant and an airbag, and do not attach or put anything on the steering wheel hub or on or near any other airbag covering. Driver Side Shown, Passenger Side Similar The roof-rail airbags for the driver, front outboard passenger, and second row outboard passengers are in the ceiling above the side windows. 49 restrain the occupants. The vehicle has electronic sensors that help the airbag system determine the severity of the impact. Deployment thresholds can vary with specific vehicle design. Do not use seat accessories that block the inflation path of a seat-mounted side impact airbag. Frontal airbags are designed to inflate in moderate to severe frontal, or near frontal, crashes to help reduce the potential for severe injuries, mainly to the driver's or front outboard passenger's head and chest. Never secure anything to the roof of a vehicle with roof-rail airbags by routing a rope or tie‐down through any door or window opening. If you do, the path of an inflating roof-rail airbag will be blocked. Whether the frontal airbags will or should inflate is not based primarily on how fast the vehicle is traveling. It depends on what is hit, the direction of the impact, and how quickly the vehicle slows down. { Warning When Should an Airbag Inflate? If something is between an occupant and an airbag, the airbag might not inflate properly or it might force the object into that person causing severe injury or even death. The path of an inflating airbag must be kept clear. Do not (Continued) This vehicle is equipped with airbags. See Airbag System 0 46. Airbags are designed to inflate if the impact exceeds the specific airbag system's deployment threshold. Deployment thresholds are used to predict how severe a crash is likely to be in time for the airbags to inflate and help Frontal airbags may inflate at different crash speeds depending on whether the vehicle hits an object straight on or at an angle, and whether the object is fixed or moving, rigid or deformable, narrow or wide. Frontal airbags are not intended to inflate during vehicle rollovers, in rear impacts, or in many side impacts. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 50 SEATS AND RESTRAINTS In addition, the vehicle has advanced technology frontal airbags. Advanced technology frontal airbags adjust the restraint according to crash severity. either side of the vehicle is struck, if the sensing system predicts that the vehicle is about to roll over on its side, or in a severe frontal impact. Knee airbags are designed to inflate in moderate to severe frontal or near frontal impacts. Knee airbags are not designed to inflate during vehicle rollovers, in rear impacts, or in many side impacts. In any particular crash, no one can say whether an airbag should have inflated simply because of the vehicle damage or repair costs. Seat-mounted side impact airbags are designed to inflate in moderate to severe side crashes depending on the location of the impact. Seat-mounted side impact airbags are not designed to inflate in frontal impacts, near frontal impacts, rollovers, or rear impacts. A seat-mounted side impact airbag is designed to inflate on the side of the vehicle that is struck. Roof-rail airbags are designed to inflate in moderate to severe side crashes depending on the location of the impact. In addition, these roof-rail airbags are designed to inflate during a rollover or in a severe frontal impact. Roof-rail airbags are not designed to inflate in rear impacts. Both roof-rail airbags will inflate when What Makes an Airbag Inflate? In a deployment event, the sensing system sends an electrical signal triggering a release of gas from the inflator. Gas from the inflator fills the airbag causing the bag to break out of the cover. The inflator, the airbag, and related hardware are all part of the airbag module. For airbag locations, see Where Are the Airbags? 0 48. How Does an Airbag Restrain? In moderate to severe frontal or near frontal collisions, even belted occupants can contact the steering wheel or the instrument panel. In moderate to severe side collisions, even belted occupants can contact the inside of the vehicle. Airbags supplement the protection provided by seat belts by distributing the force of the impact more evenly over the occupant's body. Rollover capable roof-rail airbags are designed to help contain the head and chest of occupants in the outboard seating positions in the first and second rows. The rollover capable roof-rail airbags are designed to help reduce the risk of full or partial ejection in rollover events, although no system can prevent all such ejections. But airbags would not help in many types of collisions, primarily because the occupant's motion is not toward those airbags. See When Should an Airbag Inflate? 0 49. Airbags should never be regarded as anything more than a supplement to seat belts. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS What Will You See after an Airbag Inflates? After frontal, knee, and seat-mounted side impact airbags inflate, they quickly deflate, so quickly that some people may not even realize the airbags inflated. Roof-rail airbags may still be at least partially inflated for some time after they inflate. Some components of the airbag module may be hot for several minutes. For location of the airbags, see Where Are the Airbags? 0 48. The parts of the airbag that come into contact with you may be warm, but not too hot to touch. There may be some smoke and dust coming from the vents in the deflated airbags. Airbag inflation does not prevent the driver from seeing out of the windshield or being able to steer the vehicle, nor does it prevent people from leaving the vehicle. { Warning When an airbag inflates, there may be dust in the air. This dust could cause breathing problems for people with a history of asthma or other breathing trouble. To avoid this, everyone in the vehicle should get out as soon as it is safe to do so. If you have breathing problems but cannot get out of the vehicle after an airbag inflates, then get fresh air by opening a window or a door. If you experience breathing problems following an airbag deployment, you should seek medical attention. The vehicle has a feature that may automatically unlock the doors, turn on the interior lamps and hazard warning flashers, and shut off the fuel system after the airbags inflate. The feature may also activate, without airbag inflation, after an event that exceeds a predetermined threshold. After turning the ignition off and then on again, the fuel system will return to normal operation; the doors can be 51 locked, the interior lamps can be turned off, and the hazard warning flashers can be turned off using the controls for those features. If any of these systems are damaged in the crash they may not operate as normal. { Warning A crash severe enough to inflate the airbags may have also damaged important functions in the vehicle, such as the fuel system, brake and steering systems, etc. Even if the vehicle appears to be drivable after a moderate crash, there may be concealed damage that could make it difficult to safely operate the vehicle. Use caution if you should attempt to restart the engine after a crash has occurred. In many crashes severe enough to inflate the airbag, windshields are broken by vehicle deformation. Additional windshield breakage may also occur from the front outboard passenger airbag. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 52 SEATS AND RESTRAINTS . Airbags are designed to inflate only once. After an airbag inflates, you will need some new parts for the airbag system. If you do not get them, the airbag system will not be there to help protect you in another crash. A new system will include airbag modules and possibly other parts. The service manual for the vehicle covers the need to replace other parts. . The vehicle has a crash sensing and diagnostic module which records information after a crash. See Vehicle Data Recording and Privacy 0 348 and Event Data Recorders 0 348. . Let only qualified technicians work on the airbag system. Improper service can mean that an airbag system will not work properly. See your dealer for service. Passenger Sensing System The vehicle has a passenger sensing system for the front outboard passenger position. The passenger airbag status indicator will light on the overhead console when the vehicle is started. According to accident statistics, children are safer when properly secured in a rear seat in the correct child restraint for their weight and size. The symbols for on and off will be visible during the system check. When the system check is complete, either the symbol for on or off will be visible. See Passenger Airbag Status Indicator 0 96. The passenger sensing system turns off the front outboard passenger frontal airbag and knee airbag under certain conditions. No other airbag is affected by the passenger sensing system. The passenger sensing system works with sensors that are part of the front outboard passenger seat and seat belt. The sensors are designed to detect the presence of a properly seated occupant and determine if the front outboard passenger frontal airbag and knee airbag should be allowed to inflate or not. Whenever possible, children aged 12 and under should be secured in a rear seating position. Never put a rear-facing child seat in the front. This is because the risk to the rear-facing child is so great, if the airbag inflates. { Warning A child in a rear-facing child restraint can be seriously injured or killed if the passenger frontal airbag inflates. This is because the back of the rear-facing child restraint would be very close to the inflating airbag. A child in a forward-facing child restraint can be seriously injured or killed if the passenger frontal airbag inflates and the passenger seat is in a forward position. (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Warning (Continued) Even if the passenger sensing system has turned off the front outboard passenger airbag(s), no system is fail-safe. No one can guarantee that an airbag will not deploy under some unusual circumstance, even though the airbag(s) are off. Never put a rear-facing child restraint in the front seat, even if the airbag is off. If securing a forward-facing child restraint in the front outboard passenger seat, always move the seat as far back as it will go. It is better to secure child restraints in the rear seat. Consider using another vehicle to transport the child when a rear seat is not available. The passenger sensing system is designed to turn off the front outboard passenger frontal airbag and knee airbag if: . The front outboard passenger seat is unoccupied. . The system determines an infant is present in a child restraint. . A front outboard passenger takes his/her weight off of the seat for a period of time. When the passenger sensing system has turned off the front outboard passenger frontal airbag and knee airbag, the off indicator will light and stay lit as a reminder that the airbags are off. See Passenger Airbag Status Indicator 0 96. The passenger sensing system is designed to turn on the front outboard passenger frontal airbag and knee airbag, anytime the system senses that a person of adult size is sitting properly in the front outboard passenger seat. When the passenger sensing system has allowed the airbags to be enabled, the on indicator will light and stay lit as a reminder that the airbags are active. For some children, including children in child restraints, and for very small adults, the passenger sensing system may or may not turn off the front 53 outboard passenger frontal airbag and knee airbag, depending upon the person's seating posture and body build. Everyone in the vehicle who has outgrown child restraints should wear a seat belt properly — whether or not there is an airbag for that person. { Warning If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light 0 95 for more information, including important safety information. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 54 SEATS AND RESTRAINTS If the On Indicator Is Lit for a Child Restraint The passenger sensing system is designed to turn off the front outboard passenger frontal airbag and knee airbag, if the system determines that an infant is present in a child restraint. If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as blankets, cushions, seat covers, seat heaters, or seat massagers. 4. Reinstall the child restraint following the directions provided by the child restraint manufacturer and refer to Securing Child Restraints (With the Seat Belt in the Front Seat) 0 72 or Securing Child Restraints (With the Seat Belt in the Rear Seat) 0 70. Make sure the seat belt retractor is locked by pulling the shoulder belt all the way out of the retractor when installing the child restraint, even if the child restraint is equipped with a seat belt lock off. When the retractor lock is set, the belt can be tightened but not pulled out of the retractor. 5. If, after reinstalling the child restraint and restarting the vehicle, the on indicator is still lit, turn the vehicle off. Then slightly recline the vehicle seatback and adjust the seat cushion, if adjustable, to make sure that the vehicle seatback is not pushing the child restraint into the seat cushion. Also make sure the child restraint is not trapped under the vehicle head restraint. If this happens, adjust the head restraint. See Head Restraints 0 30. 6. Restart the vehicle. The passenger sensing system may or may not turn off the airbag for a child in a child restraint depending upon the child’s size. It is better to secure the child restraint in a rear seat. Never put a rear-facing child restraint in the front seat, even if the on indicator is not lit. If the Off Indicator Is Lit for an Adult-Sized Occupant If a person of adult size is sitting in the front outboard passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat or that the child restraint locking feature is engaged. Use the following steps to allow the system to detect that person and enable the front outboard passenger frontal airbag and knee airbag: 1. Turn the vehicle off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 2. Remove any additional material from the seat, such as blankets, cushions, seat covers, seat heaters, or seat massagers. 3. Place the seatback in the fully upright position. 4. Have the person sit upright in the seat, centered on the seat cushion, with legs comfortably extended. 5. If the shoulder portion of the belt is pulled out all the way, the child restraint locking feature will be engaged. This may unintentionally cause the passenger sensing system to turn the airbag off for some adult-sized occupants. If this happens, unbuckle the belt, let the belt go back all the way, and then buckle the belt again without pulling the belt out all the way. 6. Restart the vehicle and have the person remain in this position for two to three minutes after the on indicator is lit. { Warning If the front outboard passenger airbag is turned off for an adult-sized occupant, the airbag will not be able to inflate and help protect that person in a crash, resulting in an increased risk of serious injury or even death. An adult-sized occupant should not ride in the front outboard passenger seat, if the passenger airbag off indicator is lit. Additional Factors Affecting System Operation Seat belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Seat Belts” and “Child Restraints” in the Index for additional information about the importance of proper restraint use. A thick layer of additional material, such as a blanket or cushion, or aftermarket equipment such as seat covers, seat heaters, and seat 55 massagers can affect how well the passenger sensing system operates. We recommend that you not use seat covers or other aftermarket equipment except when approved by GM for your specific vehicle. See Adding Equipment to the Airbag-Equipped Vehicle 0 56 for more information about modifications that can affect how the system operates. The on indicator may be lit if an object, such as a briefcase, handbag, grocery bag, laptop, or other electronic device, is put on an unoccupied seat. If this is not desired, remove the object from the seat. { Warning Stowing articles under the passenger seat or between the passenger seat cushion and seatback may interfere with the proper operation of the passenger sensing system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 56 SEATS AND RESTRAINTS Servicing the Airbag-Equipped Vehicle Adding Equipment to the Airbag-Equipped Vehicle sensing and diagnostic module, and airbag wiring along with the proper replacement procedures. Airbags affect how the vehicle should be serviced. There are parts of the airbag system in several places around the vehicle. Your dealer and the service manual have information about servicing the vehicle and the airbag system. Adding accessories that change the vehicle's frame, bumper system, height, front end, or side sheet metal may keep the airbag system from working properly. In addition, the vehicle has a passenger sensing system for the front outboard passenger position, which includes sensors that are part of the passenger seat. The passenger sensing system may not operate properly if the original seat trim is replaced with non-GM covers, upholstery, or trim; or with GM covers, upholstery, or trim designed for a different vehicle. Any object, such as an aftermarket seat heater or a comfort-enhancing pad or device, installed under or on top of the seat fabric, could also interfere with the operation of the passenger sensing system. This could either prevent proper deployment of the passenger airbag(s) or prevent the passenger sensing system from properly turning off the passenger airbag(s). See Passenger Sensing System 0 52. { Warning For up to 10 seconds after the vehicle is turned off and the battery is disconnected, an airbag can still inflate during improper service. You can be injured if you are close to an airbag when it inflates. Avoid yellow connectors. They are probably part of the airbag system. Be sure to follow proper service procedures, and make sure the person performing work for you is qualified to do so. The operation of the airbag system can also be affected by changing, including improperly repairing or replacing, any parts of the following: . Airbag system, including airbag modules, front or side impact sensors, sensing and diagnostic module, or airbag wiring . Front seats, including stitching, seams or zippers . Seat belts . Steering wheel, instrument panel, overhead console, ceiling trim, or pillar garnish trim . Inner door seals, including speakers Your dealer and the service manual have information about the location of the airbag modules and sensors, If the vehicle has rollover roof-rail airbags, see Different Size Tires and Wheels 0 313 for additional important information. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS If the vehicle must be modified because you have a disability and have questions about whether the modifications will affect the vehicle's airbag system, or if you have questions about whether the airbag system will be affected if the vehicle is modified for any other reason, see your dealer. Airbag System Check The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light 0 95. Caution If an airbag covering is damaged, opened, or broken, the airbag may not work properly. Do not open or break the airbag coverings. If there are any opened or broken airbag coverings, have the airbag covering and/or airbag module replaced. For the location of the airbags, see Where Are the Airbags? 0 48. See your dealer for service. Replacing Airbag System Parts after a Crash 57 Child Restraints Older Children { Warning A crash can damage the airbag systems in the vehicle. A damaged airbag system may not properly protect you and your passenger(s) in a crash, resulting in serious injury or even death. To help make sure the airbag systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible. If an airbag inflates, you will need to replace airbag system parts. See your dealer for service. If the airbag readiness light stays on after the vehicle is started or comes on when you are driving, the airbag system may not work properly. Have the vehicle serviced right away. See Airbag Readiness Light 0 95. Older children who have outgrown booster seats should wear the vehicle’s seat belts. The manufacturer instructions that come with the booster seat state the weight and height limitations for that booster. Use a booster seat with a lap-shoulder belt until the child passes the fit test below: . Sit all the way back on the seat. Do the knees bend at the seat edge? If yes, continue. If no, return to the booster seat. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 58 SEATS AND RESTRAINTS . Buckle the lap-shoulder belt. Does the shoulder belt rest on the shoulder? If yes, continue. If no, try using the rear seat belt comfort guide, if available. See “Rear Seat Belt Comfort Guides” under Lap-Shoulder Belt 0 42. If a comfort guide is not available, or if the shoulder belt still does not rest on the shoulder, then return to the booster seat. . Does the lap belt fit low and snug on the hips, touching the thighs? If yes, continue. If no, return to the booster seat. . Can proper seat belt fit be maintained for the length of the trip? If yes, continue. If no, return to the booster seat. Q: What is the proper way to wear seat belts? A: An older child should wear a lap-shoulder belt and get the additional restraint a shoulder belt can provide. The shoulder belt should not cross the face or neck. The lap belt should fit snugly below the hips, just touching the top of the thighs. This applies belt force to the child's pelvic bones in a crash. It should never be worn over the abdomen, which could cause severe or even fatal internal injuries in a crash. Also see “Rear Seat Belt Comfort Guides” under Lap-Shoulder Belt 0 42. According to accident statistics, children are safer when properly restrained in a rear seating position. In a crash, children who are not buckled up can strike other people who are buckled up, or can be thrown out of the vehicle. Older children need to use seat belts properly. { Warning Never allow more than one child to wear the same seat belt. The seat belt cannot properly spread the impact forces. In a crash, they can be crushed together and seriously injured. A seat belt must be used by only one person at a time. { Warning Never allow a child to wear the seat belt shoulder belt under both arms or behind their back. A child can be seriously injured by not wearing the lap-shoulder belt properly. In a crash, the child would not be restrained by the shoulder belt. The child could move too far forward increasing the chance of head and neck injury. The child might also slide under the lap belt. The belt force would then be applied right on the abdomen. That could cause (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Warning (Continued) { Warning serious or fatal injuries. The shoulder belt should go over the shoulder and across the chest. Children can be seriously injured or strangled if a shoulder belt is wrapped around their neck. The shoulder belt can tighten but cannot be loosened if it is locked. The shoulder belt locks when it is pulled all the way out of the retractor. It unlocks when the shoulder belt is allowed to go all the way back into the retractor, but it cannot do this if it is wrapped around a child’s neck. If the shoulder belt is locked and tightened around a child’s neck, the only way to loosen the belt is to cut it. Infants and Young Children Everyone in a vehicle needs protection! This includes infants and all other children. Neither the distance traveled nor the age and size of the traveler changes the need, for everyone, to use safety restraints. Never leave children unattended in a vehicle and never allow children to play with the seat belts. Every time infants and young children ride in vehicles, they should have the protection provided by appropriate child restraints. Neither the vehicle seat belt system nor its airbag system is designed for them. 59 Children who are not restrained properly can strike other people, or can be thrown out of the vehicle. { Warning Never hold an infant or a child while riding in a vehicle. Due to crash forces, an infant or a child will become so heavy it is not possible to hold it during a crash. For example, in a crash at only 40 km/h (25 mph), a 5.5 kg (12 lb) infant will suddenly become a 110 kg (240 lb) force on a person's arms. An infant or child should be secured in an appropriate child restraint. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 60 SEATS AND RESTRAINTS For each type of child restraint, there are many different models available. When purchasing a child restraint, be sure it is designed to be used in a motor vehicle. The instruction manual that is provided with the child restraint states the weight and height limitations for that particular child restraint. In addition, there are many kinds of child restraints available for children with special needs. { Warning Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Never put a rear-facing child restraint in the front outboard seat. Secure a rear-facing child restraint in a rear seat. It is also better to secure a forward-facing child restraint in a rear seat. If you must secure a forward-facing child restraint in the front outboard seat, always move the front passenger seat as far back as it will go. Child restraints are devices used to restrain, seat, or position children in the vehicle and are sometimes called child seats or car seats. There are three basic types of child restraints: . Forward-facing child restraints . Rear-facing child restraints . Belt-positioning booster seats The proper child restraint for your child depends on their size, weight, and age, and also on whether the child restraint is compatible with the vehicle in which it will be used. { Warning To reduce the risk of neck and head injury in a crash, infants and toddlers should be secured in a rear-facing child restraint until age two, or until they reach the maximum height and weight limits of their child restraint. { Warning A young child's hip bones are still so small that the vehicle seat belt may not remain low on the hip (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Warning (Continued) bones, as it should. Instead, it may settle up around the child's abdomen. In a crash, the belt would apply force on a body area that is unprotected by any bony structure. This alone could cause serious or fatal injuries. To reduce the risk of serious or fatal injuries during a crash, young children should always be secured in an appropriate child restraint. A rear-facing child restraint provides restraint with the seating surface against the back of the infant. The harness system holds the infant in place and, in a crash, acts to keep the infant positioned in the restraint. Booster Seats Child Restraint Systems Forward-Facing Child Restraint A forward-facing child restraint provides restraint for the child's body with the harness. Rear-Facing Infant Restraint 61 A belt-positioning booster seat is used for children who have outgrown their forward-facing child restraint. Boosters are designed to improve the fit of the vehicle's seat belt system until the child is large enough for the vehicle seat belts to fit properly without a booster seat. See the seat belt fit test in Older Children 0 57. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 62 SEATS AND RESTRAINTS Securing an Add-On Child Restraint in the Vehicle { Warning A child can be seriously injured or killed in a crash if the child restraint is not properly secured in the vehicle. Secure the child restraint properly in the vehicle using the vehicle seat belt or LATCH system, following the instructions that came with that child restraint and the instructions in this manual. To help reduce the chance of injury, the child restraint must be secured in the vehicle. Child restraints must be secured in vehicle seats by lap belts or the lap belt portion of a lap-shoulder belt, or by the LATCH system. See Lower Anchors and Tethers for Children (LATCH System) 0 64 for more information. Children can be endangered in a crash if the child restraint is not properly secured in the vehicle. When securing an add-on child restraint, refer to the following: 1. Instruction labels provided on the child restraint 2. Instruction manual provided with the child restraint 3. This vehicle owner's manual The child restraint instructions are important, so if they are not available, obtain a replacement copy from the manufacturer. Keep in mind that an unsecured child restraint can move around in a collision or sudden stop and injure people in the vehicle. Be sure to properly secure any child restraint in the vehicle — even when no child is in it. Securing the Child Within the Child Restraint { Warning A child can be seriously injured or killed in a crash if the child is not properly secured in the child restraint. Secure the child properly following the instructions that came with that child restraint. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Where to Put the Restraint According to accident statistics, children and infants are safer when properly restrained in an appropriate child restraint secured in a rear seating position. Whenever possible, children aged 12 and under should be secured in a rear seating position. Never put a rear-facing child restraint in the front. This is because the risk to the rear-facing child is so great if the airbag deploys. { Warning A child in a rear-facing child restraint can be seriously injured or killed if the front passenger airbag inflates. This is because the back of the rear-facing child restraint would be very close to the inflating airbag. A child in a forward-facing child restraint can be seriously injured or killed if the front passenger airbag inflates and the passenger seat is in a forward position. (Continued) Warning (Continued) Even if the passenger sensing system has turned off the front passenger frontal airbag, no system is fail-safe. No one can guarantee that an airbag will not deploy under some unusual circumstance, even though it is turned off. Secure rear-facing child restraints in a rear seat, even if the airbag is off. If you secure a forward-facing child restraint in the front seat, always move the front passenger seat as far back as it will go. It is better to secure the child restraint in a rear seat. See Passenger Sensing System 0 52 for additional information. When securing a child restraint with the seat belts in a rear seat position, study the instructions that came with the child restraint to make sure it is compatible with this vehicle. Child restraints and booster seats vary considerably in size, and some may fit in certain seating positions better 63 than others. Do not install a child restraint in any rear seating position where it cannot be installed securely. Depending on where you place the child restraint and the size of the child restraint, you may not be able to access adjacent seat belts or LATCH anchors for additional passengers or child restraints. Adjacent seating positions should not be used if the child restraint prevents access to or interferes with the routing of the seat belt. The seat in front of an installed child restraint should be adjusted to ensure proper installation according to the child restraint manual. Wherever a child restraint is installed, be sure to follow the instructions that came with the child restraint and secure the child restraint properly. Keep in mind that an unsecured child restraint can move around in a collision or sudden stop and injure people in the vehicle. Be sure to properly secure any child restraint in the vehicle — even when no child is in it. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 64 SEATS AND RESTRAINTS Lower Anchors and Tethers for Children (LATCH System) The LATCH system secures a child restraint during driving or in a crash. LATCH attachments on the child restraint are used to attach the child restraint to the anchors in the vehicle. The LATCH system is designed to make installation of a child restraint easier. In order to use the LATCH system in your vehicle, you need a child restraint that has LATCH attachments. LATCH-compatible rear-facing and forward-facing child seats can be properly installed using either the LATCH anchors or the vehicle’s seat belts. Do not use both the seat belts and the LATCH anchorage system to secure a rear-facing or forward-facing child seat. Booster seats use the vehicle’s seat belts to secure the child and the booster seat. If the manufacturer recommends that the booster seat be secured with the LATCH system, this can be done as long as the booster seat can be positioned properly and there is no interference with the proper positioning of the lap-shoulder belt on the child. Make sure to follow the instructions that came with the child restraint, and also the instructions in this manual. When installing a child restraint with a top tether, you must also use either the lower anchors or the seat belts to properly secure the child restraint. A child restraint must never be installed using only the top tether and anchor. For a forward-facing 5-pt harness child restraint where the combined weight of the child and restraint are up to 29.5 kg (65 lb), use either the lower LATCH anchorages with the top tether anchorage, or the seat belt with the top tether anchorage. Where the combined weight of the child and restraint are greater than 29.5 kg (65 lb), use the seat belt with the top tether anchorage only. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 65 Recommended Methods for Attaching Child Restraints Restraint Type Combined Weight Use Only Approved Attachment Methods Shown with an X of the Child + Seat Belt and Top LATCH – Lower Seat Belt Only LATCH – Lower Child Restraint Tether Anchor Anchors Only Anchors and Top Tether Anchor Rear-Facing Child Restraint Up to 29.5 kg (65 lb) Rear-Facing Child Restraint Greater than 29.5 kg (65 lb) Forward-Facing Child Restraint Up to 29.5 kg (65 lb) Forward-Facing Child Restraint Greater than 29.5 kg (65 lb) See Securing Child Restraints (With the Seat Belt in the Front Seat) 0 72 or Securing Child Restraints (With the Seat Belt in the Rear Seat) 0 70. X X X X X X Child restraints built after March 2014 will be labeled with the specific child weight up to which the LATCH system can be used to install the restraint. The following explains how to attach a child restraint with these attachments in the vehicle. Not all vehicle seating positions have lower anchors. In this case, the seat belt must be used (with top tether where available) to secure the child restraint. See Securing Child Restraints (With the Seat Belt in the Front Seat) 0 72 or Securing Child Restraints (With the Seat Belt in the Rear Seat) 0 70. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 66 SEATS AND RESTRAINTS Lower Anchors Top Tether Anchor Some child restraints with top tethers are designed for use with or without the top tether being attached. Others require the top tether always to be attached. Be sure to read and follow the instructions for your child restraint. Lower Anchor and Top Tether Anchor Locations Lower anchors (1) are metal bars built into the vehicle. There are two lower anchors for each LATCH seating position that will accommodate a child restraint with lower attachments (2). A top tether (3,4) is used to secure the top of the child restraint to the vehicle. A top tether anchor is built into the vehicle. The top tether attachment hook (2) on the child restraint connects to the top tether anchor in the vehicle in order to reduce the forward movement and rotation of the child restraint during driving or in a crash. The child restraint may have a single tether (3) or a dual tether (4). Either will have a single attachment hook (2) to secure the top tether to the anchor. Rear Seat I : Seating positions with top tether anchors. H : Seating positions with two lower anchors. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 67 The top tether anchors are behind the rear seat, on the filler panel. Open the covers to access the anchors. Be sure to use an anchor located directly behind the seating position where the child restraint will be placed. To assist in locating the lower anchors, each seating position with lower anchors has two labels, near the crease between the seatback and the seat cushion. The lower anchors are located under the labeled covers on the seat cushion near the crease between the seatback and the seat cushion. To assist in locating the top tether anchors, the top tether anchor symbol is on the cover. Do not secure a child restraint in a position without a top tether anchor if a national or local law requires that the top tether be attached, or if the instructions that come with the child restraint say that the top tether must be attached. According to accident statistics, children and infants are safer when properly restrained in a child restraint system or infant restraint system secured in a rear seating position. See Where to Put the Restraint 0 63 for additional information. Securing a Child Restraint Designed for the LATCH System { Warning A child could be seriously injured or killed in a crash if the child restraint is not properly attached to (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 68 SEATS AND RESTRAINTS Warning (Continued) Warning (Continued) { Warning the vehicle using either the LATCH anchors or the vehicle seat belt. Follow the instructions that came with the child restraint and the instructions in this manual. cannot be loosened if it is locked. The shoulder belt locks when it is pulled all the way out of the retractor. It unlocks when the shoulder belt is allowed to go all the way back into the retractor, but it cannot do this if it is wrapped around a child’s neck. If the shoulder belt is locked and tightened around a child’s neck, the only way to loosen the belt is to cut it. The power seats will work with the ignition off. Children could operate the power seats and be injured. Never leave children alone in the vehicle. { Warning To reduce the risk of serious or fatal injuries during a crash, do not attach more than one child restraint to a single anchor. Attaching more than one child restraint to a single anchor could cause the anchor or attachment to come loose or even break during a crash. A child or others could be injured. { Warning Children can be seriously injured or strangled if a shoulder belt is wrapped around their neck. The shoulder belt can tighten but (Continued) Buckle any unused seat belts behind the child restraint so children cannot reach them. Pull the shoulder belt all the way out of the retractor to set the lock, and tighten the belt behind the child restraint after the child restraint has been installed. Caution Do not let the LATCH attachments rub against the vehicle’s seat belts. This may damage these parts. If necessary, move buckled seat belts to avoid rubbing the LATCH attachments. If you need to secure more than one child restraint in the rear seat, see Where to Put the Restraint 0 63. 1. Attach and tighten the lower attachments to the lower anchors. If the child restraint does not have lower attachments or the desired seating position does not have lower anchors, secure the child restraint with the top tether and the seat belt. Refer to the child Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS restraint manufacturer instructions and the instructions in this manual. 1.1. Find the lower anchors for the desired seating position. 1.2. Put the child restraint on the seat. 1.3. Attach and tighten the lower attachments on the child restraint to the lower anchors. 2. If the child restraint manufacturer recommends that the top tether be attached, attach and tighten the top tether to the top tether anchor, if equipped. Refer to the child restraint instructions and the following steps: 2.1. Find the top tether anchor. 2.2. Open the top tether anchor cover to expose the anchor. 2.3. Route, attach, and tighten the top tether according to your child restraint instructions and the following instructions: If the position you are using does not have a headrest or head restraint and you are using a single tether, route the tether over the seatback. If the position you are using does not have a headrest or head restraint and you are using a dual tether, route the tether over the seatback. 69 If the position you are using has an adjustable head restraint and you are using a single tether, raise the head restraint and route the tether under the head restraint and in between the head restraint posts. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 70 SEATS AND RESTRAINTS Replacing LATCH System Parts After a Crash { Warning If the position you are using has an adjustable head restraint and you are using a dual tether, raise the head restraint and route the tether under the head restraint and in between the head restraint posts. 3. Before placing a child in the child restraint, make sure it is securely held in place. To check, grasp the child restraint at the LATCH path and attempt to move it side to side and back and forth. There should be no more than 2.5 cm (1 in) of movement for proper installation. A crash can damage the LATCH system in the vehicle. A damaged LATCH system may not properly secure the child restraint, resulting in serious injury or even death in a crash. To help make sure the LATCH system is working properly after a crash, see your dealer to have the system inspected and any necessary replacements made as soon as possible. If the vehicle has the LATCH system and it was being used during a crash, new LATCH system parts may be needed. New parts and repairs may be necessary even if the LATCH system was not being used at the time of the crash. Securing Child Restraints (With the Seat Belt in the Rear Seat) When securing a child restraint with the seat belts in a rear seat position, study the instructions that came with the child restraint to make sure it is compatible with this vehicle. If the child restraint has the LATCH system, see Lower Anchors and Tethers for Children (LATCH System) 0 64 for how and where to install the child restraint using LATCH. If a child restraint is secured in the vehicle using a seat belt and it uses a top tether, see Lower Anchors and Tethers for Children (LATCH System) 0 64 for top tether anchor locations. Do not secure a child seat in a position without a top tether anchor if a national or local law requires that the top tether be anchored, or if the instructions that come with the child restraint say that the top tether must be anchored. If the child restraint or vehicle seat position does not have the LATCH system, you will be using the seat belt Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 71 to secure the child restraint. Be sure to follow the instructions that came with the child restraint. If more than one child restraint needs to be installed in the rear seat, be sure to read Where to Put the Restraint 0 63. 1. Put the child restraint on the seat. If the head restraint interferes with the proper installation of the child restraint, see your dealer for assistance. 2. Pick up the latch plate, and run the lap and shoulder portions of the vehicle seat belt through or around the child restraint. The child restraint instructions will show you how. 3. Push the latch plate into the buckle until it clicks. Position the release button on the buckle, away from the child restraint, so that the seat belt could be quickly unbuckled if necessary. 4. Pull the shoulder belt all the way out of the retractor to set the lock. When the retractor lock is set, the belt can be tightened but not pulled out of the retractor. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 72 SEATS AND RESTRAINTS 5. To tighten the belt, push down on the child restraint, pull the shoulder portion of the belt to tighten the lap portion of the belt, and feed the shoulder belt back into the retractor. When installing a forward-facing child restraint, it may be helpful to use your knee to push down on the child restraint as you tighten the belt. Try to pull the belt out of the retractor to make sure the retractor is locked. If the retractor is not locked, repeat Steps 4 and 5. 6. If the child restraint has a top tether, follow the child restraint manufacturer's instructions regarding the use of the top tether. See Lower Anchors and Tethers for Children (LATCH System) 0 64. 7. For forward-facing child restraints, attach and tighten the top tether to the top tether anchor (loop). Refer to the child restraint instructions, the vehicle LATCH anchor weight limits and instructions listed in Lower Anchors and Tethers for Children (LATCH System) 0 64. 8. Before placing a child in the child restraint, make sure it is securely held in place. To check, grasp the child restraint at the seat belt path and attempt to move it side to side and back and forth. When the child restraint is properly installed, there should be no more than 2.5 cm (1 in) of movement. To remove the child restraint, unbuckle the vehicle seat belt and let it return to the stowed position. If the top tether is attached to a top tether anchor, disconnect it. Securing Child Restraints (With the Seat Belt in the Front Seat) This vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint 0 63. In addition, the vehicle has a passenger sensing system which is designed to turn off the front outboard passenger frontal airbag and knee airbag under certain conditions. See Passenger Sensing System 0 52 and Passenger Airbag Status Indicator 0 96 for more information, including important safety information. Never put a rear-facing child seat in the front. This is because the risk to the rear-facing child is so great, if the airbag deploys. { Warning A child in a rear-facing child restraint can be seriously injured or killed if the front outboard passenger frontal airbag inflates. (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS Warning (Continued) Warning (Continued) This is because the back of the rear-facing child restraint would be very close to the inflating airbag. A child in a forward-facing child restraint can be seriously injured or killed if the front outboard passenger frontal airbag inflates and the passenger seat is in a forward position. See Passenger Sensing System 0 52 for additional information. Even if the passenger sensing system has turned off the front outboard passenger airbag(s), no system is fail-safe. No one can guarantee that an airbag will not deploy under some unusual circumstance, even though the airbag(s) are off. Secure rear-facing child restraints in a rear seat, even if the airbag(s) are off. If you secure a forward-facing child restraint in the front outboard passenger seat, always move the seat as far back as it will go. It is better to secure the child restraint in a rear seat. (Continued) If the child restraint uses a top tether, see Lower Anchors and Tethers for Children (LATCH System) 0 64 for top tether anchor locations. Do not secure a child seat in a position without a top tether anchor if a national or local law requires that the top tether be anchored, or if the instructions that come with the child restraint say that the top tether must be anchored. When using the lap-shoulder belt to secure the child restraint in this position, follow the instructions that came with the child restraint and the following instructions: 1. Move the seat as far back as it will go before securing the forward-facing child restraint. Move the seat upward or the seatback to an upright position, if needed, to get a tight installation of the child restraint. 73 When the passenger sensing system has turned off the front outboard passenger frontal airbag and knee airbag, the off indicator on the passenger airbag status indicator should light and stay lit when you start the vehicle. See Passenger Airbag Status Indicator 0 96. 2. Put the child restraint on the seat. 3. Pick up the latch plate, and run the lap and shoulder portions of the vehicle seat belt through or around the child restraint. The child restraint instructions will show you how. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 74 SEATS AND RESTRAINTS Tilt the latch plate to adjust the belt if needed. 4. Push the latch plate into the buckle until it clicks. Position the release button on the buckle, away from the child restraint, so that the seat belt could be quickly unbuckled if necessary. 5. Pull the shoulder belt all the way out of the retractor to set the lock. When the retractor lock is set, the belt can be tightened but not pulled out of the retractor. It may be necessary to slide the adjustable stop along the webbing toward the outboard anchor to fully tighten the seat belt around the child restraint. While a child restraint is installed, the adjustable stop should be positioned on the portion of the webbing that does not interact with the child restraint. 6. To tighten the belt, push down on the child restraint, pull the shoulder portion of the belt to tighten the lap portion of the belt, and feed the shoulder belt back into the retractor. When installing a forward-facing child restraint, it may be helpful to use your knee to push down on the child restraint as you tighten the belt. Try to pull the belt out of the retractor to make sure the retractor is locked. If the retractor is not locked, repeat Steps 5 and 6. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SEATS AND RESTRAINTS 7. Before placing a child in the child restraint, make sure it is securely held in place. Refer to your child restraint manufacturer instructions. If the airbags are off, the off indicator in the passenger airbag status indicator will come on and stay on when the vehicle is started. If a child restraint has been installed and the on indicator is lit, see “If the On Indicator Is Lit for a Child Restraint ” under Passenger Sensing System 0 52. To remove the child restraint, unbuckle the vehicle seat belt and let it return to the stowed position. 75 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 76 STORAGE Storage Storage Compartments Storage Compartments . . . . . . . . . . . . 76 Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . 76 Center Console Storage . . . . . . . . . . . . 77 Umbrella Storage . . . . . . . . . . . . . . . . . . 77 Additional Storage Features Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . 78 Cargo Management System . . . . . . . 78 Safety Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Storage Compartments { Warning Cupholders There are two cupholders in the front center console. Do not store heavy or sharp objects in storage compartments. In a crash, these objects may cause the cover to open and could result in injury. Glove Box The cupholder has a removable liner. To clean the liner, remove and use mild soap and water. Dry the liner completely before reinstalling. To remove the liner, pull up on the tab and remove. Pull the handle from the right to open the glove box. To close, push up until it latches. Use the vehicle key to lock or unlock. To reinstall the liner, press into the cupholder with the key logo in the rear cupholder. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 STORAGE Umbrella Storage Rear Cupholders Pull the armrest down to access the rear cupholders. Center Console Storage If equipped, the SD card is used for navigation. Do not remove the card from the holder. Press the button and lift to access the storage area. There is an accessory power outlet, two USB ports, and an SD card slot inside. See Power Outlets 0 84 or USB Port 0 139. If equipped, there is a removable phone holder to store a phone and the cord while charging. Slide a compact umbrella no larger than 6 cm (2.36 in) in diameter into the opening on the driver or passenger door. 77 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 78 STORAGE Safety Kit Additional Storage Features Cargo Tie-Downs Lift up on the load floor and push forward. The cargo tie-downs can be used to secure small loads inside the trunk. Cargo Management System The vehicle has a cargo management system in the trunk. The safety kit is a freestanding bag in the cargo area. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 STORAGE The items stored in the safety kit bag include: 1. Fire Extinguisher 2. Warning Triangle 3. First Aid Kit 4. Highway Safety Kit { Warning Perform fire extinguisher maintenance in intervals specified by its manufacturer. Periodically check: . The internal pressure is still indicated by the green operating zone of the pressure gauge. . The lead seal is not breached. . The extinguisher validity is not expired. If the fire extinguisher is put to use or if there is an issue with its operation, replace the extinguisher with a new one that meets current country regulations. (Continued) Warning (Continued) Lack of proper maintenance may lead to injury or death if the fire extinguisher does not function properly. 79 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 80 INSTRUMENTS AND CONTROLS Instruments and Controls Controls Steering Wheel Adjustment . . . . . . . Steering Wheel Controls . . . . . . . . . . Heated Steering Wheel . . . . . . . . . . . . Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windshield Wiper/Washer . . . . . . . . Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Outlets . . . . . . . . . . . . . . . . . . . . . . Wireless Charging . . . . . . . . . . . . . . . . . Cigarette Lighter . . . . . . . . . . . . . . . . . . . Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 81 81 81 81 83 83 84 84 86 87 Warning Lights, Gauges, and Indicators Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrument Cluster (Uplevel) . . . . . Speedometer . . . . . . . . . . . . . . . . . . . . . . . Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . Trip Odometer . . . . . . . . . . . . . . . . . . . . . Tachometer . . . . . . . . . . . . . . . . . . . . . . . . Fuel Gauge (Base Level) . . . . . . . . . . . Fuel Gauge (Uplevel) . . . . . . . . . . . . . . 87 88 90 92 93 93 93 93 94 Engine Coolant Temperature Gauge (Base Level) . . . . . . . . . . . . . . . 94 Engine Coolant Temperature Gauge (Uplevel) . . . . . . . . . . . . . . . . . . 94 Seat Belt Reminders . . . . . . . . . . . . . . . 95 Airbag Readiness Light . . . . . . . . . . . . 95 Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Charging System Light . . . . . . . . . . . . 96 Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . . 97 Brake System Warning Light . . . . . 99 Electric Parking Brake Light . . . . . . 99 Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 100 Performance Shifting Light . . . . . . 100 Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Lane Keep Assist (LKA) Light . . . 100 Vehicle Ahead Indicator . . . . . . . . . 101 Pedestrian Ahead Indicator . . . . . . 101 Traction Off Light . . . . . . . . . . . . . . . . 101 StabiliTrak OFF Light . . . . . . . . . . . . 102 Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 102 Driver Mode Control Light . . . . . . . 102 Tire Pressure Light . . . . . . . . . . . . . . . 103 Engine Oil Pressure Light . . . . . . . . 103 Low Fuel Warning Light . . . . . . . . . Security Light . . . . . . . . . . . . . . . . . . . . . High-Beam On Light . . . . . . . . . . . . . Lamps On Reminder . . . . . . . . . . . . . Cruise Control Light . . . . . . . . . . . . . . Door Ajar Light . . . . . . . . . . . . . . . . . . . 103 104 104 104 104 105 Information Displays Driver Information Center (DIC) (Base Level) . . . . . . . . . . . . . . . . . . . . . 105 Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . 108 Head-Up Display (HUD) . . . . . . . . . 110 Vehicle Messages Vehicle Messages . . . . . . . . . . . . . . . . . 113 Engine Power Messages . . . . . . . . . . 113 Vehicle Speed Messages . . . . . . . . . 114 Vehicle Personalization Vehicle Personalization . . . . . . . . . . 114 Universal Remote System Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 119 Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 121 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS 81 Controls Steering Wheel Controls Automatic Heated Steering Wheel Steering Wheel Adjustment The infotainment system can be operated by using the steering wheel controls. See Steering Wheel Controls 0 133. If equipped with remote start, the heated steering wheel will turn on automatically during a remote start along with the heated seats when it is cold outside. The heated steering wheel indicator light may not come on. Heated Steering Wheel If equipped with auto heated seats, the heated steering wheel will turn on when the auto heated seat is activated. The heated steering wheel indicator will display the state of the steering wheel heat. See Heated and Ventilated Front Seats 0 36. Horn To adjust the steering wheel: 1. Pull the lever down. 2. Move the steering wheel up or down. 3. Pull or push the steering wheel closer or away from you. 4. Pull the lever up to lock the steering wheel in place. ( : If equipped, press to turn the heated steering wheel on or off. An indicator light next to the button displays when the feature is turned on. Do not adjust the steering wheel while driving. The steering wheel takes about three minutes to be fully heated. Press a on the steering wheel pad to sound the horn. Windshield Wiper/Washer Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 82 INSTRUMENTS AND CONTROLS With the ignition on or in ACC/ ACCESSORY, move the windshield wiper lever to select the wiper speed. HI : Use for fast wipes. LO : Use for slow wipes. INT : Use this setting for intermittent wipes or for Rainsense wipes, when Rainsense is enabled. For intermittent wipes, move the lever up to INT, then turn the O band up for more frequent wipes or down for less frequent wipes. If Rainsense is enabled, see “Rainsense” later in this section. If the windshield wipers are in use while driving, the exterior lamps come on automatically if the exterior lamp control is in AUTO. The transition time for the lamps coming on varies based on wiper speed. See “Lights On with Wipers” under Automatic Headlamp System 0 124. OFF : Use to turn the wipers off. 1X : For a single wipe, briefly move the wiper lever down. For several wipes, hold the wiper lever down. Clear snow and ice from the wiper blades and windshield before using them. If frozen to the windshield, carefully loosen or thaw them. Damaged blades should be replaced. See Wiper Blade Replacement 0 288. Heavy snow or ice can overload the wiper motor. { Warning In freezing weather, do not use the washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision. Warning (Continued) windows. Reduced visibility from snow and ice buildup could lead to a crash. Wiper Parking If the ignition is turned off while the wipers are on LO, HI, or INT with Rainsense disabled, they will immediately stop. If the windshield wiper lever is then moved to OFF before the driver door is opened or within 10 minutes, the wipers will restart and move to the base of the windshield. If the ignition is turned off while the wipers are performing wipes due to windshield washing or Rainsense, the wipers continue to run until they reach the base of the windshield. { Warning Rainsense Before driving the vehicle, always clear snow and ice from the hood, windshield, roof, and rear of the vehicle, including all lamps and (Continued) If equipped with Rainsense, a sensor near the top center of the windshield detects the amount of water on the windshield and controls the frequency of the windshield wiper. To turn this Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS feature on or off, see “Rainsense Wipers” under Vehicle Personalization 0 114. Keep this area of the windshield clear of debris to allow for best system performance. AUTO : When enabled, move the windshield wiper lever to AUTO. Turn the O band on the wiper lever to adjust the sensitivity. Wiper Arm Assembly Protection Compass When using an automatic car wash, move the windshield wiper lever to OFF. This disables the automatic Rainsense windshield wipers. The vehicle has a compass display on the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak/Electronic Stability Control (ESC), and vehicle speed information. With Rainsense, if the transmission is in N (Neutral) and the vehicle speed is very slow, the wipers will automatically stop at the base of the windshield. The wiper operations return to normal when the transmission is no longer in N (Neutral) or the vehicle speed has increased. f : Pull the windshield wiper lever . Turn the band up for more sensitivity to moisture. . Turn the band down for less sensitivity to moisture. . Move the windshield wiper lever out of the AUTO position to deactivate Rainsense. 83 toward you to spray windshield washer fluid and activate the wipers. The wipers will continue until the lever is released or the maximum wash time is reached. When the windshield wiper lever is released, additional wipes may occur depending on how long the windshield washer had been activated. See Washer Fluid 0 284 for information on filling the windshield washer fluid reservoir. The compass system is designed to operate for a certain number of miles or degrees of turn before needing a signal from the GPS satellites. When the compass display shows CAL, drive the vehicle for a short distance in an open area where it can receive a GPS signal. The compass system will automatically determine when a GPS signal is restored and provide a heading again. Clock Set the time and date using the infotainment system. See "Time / Date" under Settings 0 169. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 84 INSTRUMENTS AND CONTROLS Power Outlets The accessory power outlets can be used to plug in electrical equipment, such as a cell phone or MP3 player. The vehicle has two accessory power outlets: . Inside the center console storage area. . On the rear of the center floor console. Lift the cover to access the accessory power outlet. Certain electrical accessories may not be compatible with the accessory power outlet and could overload a vehicle circuit breaker or adapter fuse. If overloaded, the circuit breaker will reset after all devices are disconnected or if Retained Accessory Power (RAP) is turned off and then back on. See Retained Accessory Power (RAP) 0 207. Wait one minute to allow the circuit breaker to reset before reconnecting devices or turning RAP back on. If the problem continues, the issue could be within your device. Try another known good device to make sure the circuit breaker is operating properly. If this does not resolve your problem, see your dealer. Caution Failure to replace the circuit breaker with the minifuse could overheat the cigar lighter and damage the vehicle. When adding electrical equipment, be sure to follow the proper installation instructions included with the equipment. See Add-On Electrical Equipment 0 265. Caution Hanging heavy equipment from the power outlet can cause damage not covered by the vehicle warranty. The power outlets are designed for accessory power plugs only, such as cell phone charge cords. Always unplug electrical equipment when not in use and do not plug in equipment that exceeds the maximum 15 amps rating. Wireless Charging The vehicle may have a wireless charging pad below the climate controls. The system operates at 145 kHz and wirelessly charges one Qi compatible smartphone. The power output of the system is capable of charging at a rate up to 3 amp (15W), as requested by the compatible smartphone. { Warning Wireless charging can affect the operation of an implanted pacemaker or other medical devices. If you have one, it is recommended to consult with your doctor before using the wireless charging system. The vehicle must be on, in ACC/ ACCESSORY, or Retained Accessory Power (RAP) must be active. The wireless charging feature may not correctly indicate charging when the vehicle is in RAP, or during Bluetooth phone calls. See Retained Accessory Power (RAP) 0 207. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS or may reduce the charging performance. See your dealer for additional information. The operating temperature is −20 °C (−4 °F) to 60 °C (140 °F) for the charging system and 0 °C (32 °F) to 35 °C (95 °F) for the smartphone. A text message may be displayed on the radio indicating that the system is unable to charge due to high temperature while the charger or the phone is above or below these operating temperature ranges. 3. A green $ next to the # will appear on the infotainment display. This indicates that the smartphone is properly positioned and charging. { Warning Remove all objects from the charging pad before charging your compatible smartphone. Objects, such as coins, keys, rings, paper clips, or cards, between the smartphone and charging pad will become very hot. On the rare occasion that the charging system does not detect an object, and the object gets wedged between the smartphone and charger, remove the smartphone and allow the object to cool before removing it from the charging pad, to prevent burns. 85 To charge a compatible smartphone: 1. Remove all objects from the charging pad. The system may not charge if there are any objects between the smartphone and charging pad. 2. Place the smartphone face up on the @ symbol on the charging pad. To maximize the charge rate, ensure the smartphone is fully seated and centered in the holder with nothing under it. A thick smartphone case may prevent the wireless charger from working, If the $ turns yellow, ensure that the charging pad is clear of any objects and that the smartphone is capable of wireless charging before re-positioning it. If the $ does not illuminate, the smartphone may need to be repositioned. To reposition, turn the smartphone 180 degrees and wait three seconds before placing/ aligning it on the pad again. The smartphone may become warm during charging. This is normal. In warmer temperatures, the speed of charging maybe be reduced. Software Acknowledgements Certain Wireless Charging Module product from LG Electronics, Inc. ("LGE") contains the open source software detailed below. Refer to the Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 86 INSTRUMENTS AND CONTROLS indicated open source licenses (as are included following this notice) for the terms and conditions of their use. OSS Notice Information To obtain the source code that is contained in this product, please visit http://opensource.lge.com. In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download. LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to [email protected]. This offer is valid for three (3) years from the date on which you purchased the product. Freescale-WCT library Copyright (c) 2012-2014 Freescale Semiconductor, Inc.. All rights reserved. 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Cigarette Lighter There may be a cigarette lighter inside the center console storage area. To use the cigarette lighter, push it in all the way, and let go. When it is ready, it will pop back out by itself. Caution Holding a cigarette lighter in while it is heating does not let the lighter back away from the heating element when it is hot. Damage from overheating can occur to the lighter or heating element, or a fuse could be blown. Do not hold a cigarette lighter in while it is heating. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Ashtrays There are front and rear ashtrays. Caution If papers, pins, or other flammable items are put in the ashtray, hot cigarettes or other smoking materials could ignite them and possibly damage the vehicle. Never put flammable items in the ashtray. Warning Lights, Gauges, and Indicators Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury. Some warning lights come on briefly when the engine is started to indicate they are working. When one of the warning lights comes on and stays on while driving, or when one of the gauges shows there may be a problem, check the section that explains what to do. Waiting to do repairs can be costly and even dangerous. 87 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 88 INSTRUMENTS AND CONTROLS Cluster Menu Instrument Cluster (Base Level) There is an interactive display area in the center of the instrument cluster. Use the right steering wheel control to open and scroll through the different items and displays. Base Level 1. Tachometer 0 93 2. Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108 3. Speedometer 0 92 4. Engine Coolant Temperature Gauge (Base Level) 0 94 or Engine Coolant Temperature Gauge (Uplevel) 0 94 5. Fuel Gauge (Base Level) 0 93 or Fuel Gauge (Uplevel) 0 94 Press S or T to access the cluster applications. Use the thumbwheel to scroll through the list of available applications. Not all applications will be available on all vehicles. . Info App. This is where the selected Driver Information Center (DIC) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS . . . . displays can be viewed. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. Audio Navigation Phone Options Audio In the Audio menu browse for music, select from the favorites, or change the audio source. Use the thumbwheel to change the station or go to the next or previous track. Navigation If there is no active route, press enter to access the Recents or Favorites list. If there is an active route, press the thumbwheel to cancel or resume route guidance, mute or unmute voice guidance, or access the Recents or Favorites list. Phone In the Phone menu, if there is no active phone call, view recent calls, or scroll through contacts. If there is an active call, mute the phone or switch to handset operation. Options Use the thumbwheel to scroll through items in the Options menu. Head-up Display (HUD) : If equipped, this feature allows for adjusting the angle of the HUD image and changing or turning off the Speed Limit Sign. HUD Rotation (Uplevel): Press the thumbwheel while Adjust Rotation is highlighted to enter Adjust Mode. Scroll to adjust the angle of the HUD display. Press the thumbwheel to confirm and save the setting. This feature may only be available in P (Park). Speed Sign: If equipped, press the thumbwheel while Speed Sign is highlighted to turn it on or off. Units : Choose US or metric units by pressing the thumbwheel while the desired item is highlighted. 89 Info Page Options : Press the thumbwheel to select the items to be displayed in the Info app. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. Display : Press the thumbwheel to enter the Display menu. Select to turn on or off the speedometer, time, fuel range, or, if equipped, compass or speed sign. Speed Warning : The Speed Warning display allows the driver to set a speed that they do not want to exceed. To set the Speed Warning press the thumbwheel when Speed Warning is displayed. Use the thumbwheel to adjust the value and press to set the speed. Once the speed is set, this feature can be turned off by pressing the thumbwheel while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime. Software Information : Displays open source software information. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 90 INSTRUMENTS AND CONTROLS Cluster Menu Instrument Cluster (Uplevel) There is an interactive display area in the center of the instrument cluster. Use the right steering wheel control to open and scroll through the different items and displays. Tour Mode Shown, Other Modes Similar 1. Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108 2. Fuel Gauge (Base Level) 0 93 or Fuel Gauge (Uplevel) 0 94 3. Speedometer 0 92 4. Tachometer 0 93 Press S or T to access the cluster applications. Use the thumbwheel to scroll y or z through the list of available features. Press the thumbwheel to select. Not all applications will be available on all vehicles. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS . Info Tiles Selection/Trip Computer/ . . . . . . Maintenance: The selected Driver Information Center (DIC) displays can be viewed. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. Driver Assistance Audio Phone Navigation Options Simplify Audio In the Audio menu, use the thumbwheel to scroll through audio presets. Phone In the Phone menu, if there is no active phone call, view recent calls, or scroll through contacts. If there is an active call, mute the phone or switch to handset operation. Navigation If there is an active route, press the thumbwheel to cancel or resume route guidance, or turn the voice prompts on or off. Options Use the thumbwheel to scroll through items in the Options menu. Display Themes Press the thumbwheel to enter the Display menu. There are two instrument cluster display configurations to choose from. Sport, and Tour. The style of the cluster will change depending on the theme selected. Default is linked to Driver Mode. Other display themes can be set If in My Mode then those displays plus HUD (if equipped) can be set. . Sport: Displays Coolant Temperature, Fuel Gauge, Fuel Range, Compass, Drive Mode Indicator, Odometer, Speed, Tachometer, Electronic Transmission Range, Current Gear, 91 Speed Limit, Info Area, and Interaction Area, and Cruise Control (if engaged). . Tour: Displays Fuel Gauge, Fuel Range, Compass, Drive Mode Indicator, Odometer, Speed, Tachometer, Electronic Transmission Range, Current Gear, Peak Performance, Speed Limit, Info Area, and Interaction Area, and Cruise Control (if engaged). Preset info tiles shown on each layout: Sport : Time and Temperature, Oil Temperature, Tire Status, Oil Pressure Tour : Time and Temperature Speed Warning The Speed Warning display allows the driver to set a speed that they do not want to exceed. To set the Speed Warning, press the thumbwheel when Speed Warning is displayed, or press the thumbwheel on the main view to set the speed value. Scroll to adjust the value. Press the thumbwheel to set the speed. Once the speed is set, this feature can be turned off by pressing the thumbwheel while viewing this Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 92 INSTRUMENTS AND CONTROLS page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime. confirm and save the setting. This feature may only be available in P (Park). Speed Sign Shows sign information, which comes from a roadway database in the onboard navigation, if equipped. Speed limit signs in your vehicle display may vary from actual road speed depending on the version of your current navigation map. Units Fuel Range Press the thumbwheel while Units is displayed to enter the Units menu. Choose US or metric units by pressing the thumbwheel while the desired item is highlighted. A selected mark will be displayed next to the selected item. Fuel Range displays the approximate distance the vehicle can be driven without refueling. LOW will be displayed when the vehicle is low on fuel. The fuel range estimate is based on an average of the vehicle's fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. Tire Pressure If the tire pressure readings need to be recalibrated at any time, this option initiates the Tire Pressure Relearn function. The selection of relearn opens a pop-up when the thumbwheel is pressed for five seconds. Software Info Head-Up Display (HUD) Rotation Allows the driver to reset to default settings. Press the thumbwheel while Adjust Rotation is highlighted to enter Adjust Mode. Scroll to adjust the angle of the HUD display. Press the thumbwheel to Press T while Software Info is highlighted to display open source software information. Reset To Defaults Simplify Press the thumbwheel to enter the Simplify menu. Simplify Mode allows certain features of the instrument cluster to be hidden. These features include info tiles and interactive areas. Using the thumbwheel, except to acknowledge an alert, will exit Simplify Mode. The selected features will stay hidden even after starting and restarting the vehicle, unless Simplify Mode is manually canceled. Speedometer The speedometer shows the vehicle's speed in kilometers per hour (km/h) or miles per hour (mph). This vehicle is equipped with an overspeed warning device. When the vehicle's speed reaches 120 km/h (75 mph), a chime will sound. A message also displays in the Driver Information Center (DIC). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Odometer The odometer shows how far the vehicle has been driven, in either kilometers or miles. Trip Odometer The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset. The trip odometer is accessed and reset through the Driver Information Center (DIC). See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. move. The engine could auto start at any time. When the indicator points to OFF, the vehicle is off. There is an arrow near the fuel gauge pointing to the side of the vehicle the fuel door is on. When the engine is on, the tachometer will indicate the engine’s revolutions per minute (rpm). The tachometer may vary by several hundred rpm, during Auto Stop mode, when the engine is shutting off and restarting. When the indicator nears empty, the low fuel light comes on. There still is a little fuel left, but the vehicle should be refueled soon. Fuel Gauge (Base Level) Tachometer The tachometer displays the engine speed in revolutions per minute (rpm). For vehicles with the Stop/Start system, when the ignition is on, the tachometer indicates the vehicle status. When pointing to AUTO STOP (Base Level) or the cluster displays AUTO STOP text (Uplevel), the engine is off but the vehicle is on and can 93 When the ignition is on, the fuel gauge indicates about how much fuel is left in the tank. Here are four things that some owners ask about. None of these show a problem with the fuel gauge: . At the service station, the fuel pump shuts off before the gauge reads full. . It takes a little more or less fuel to fill up than the gauge indicated. For example, the gauge may have indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. . The gauge moves a little while turning a corner or speeding up. . The gauge takes a few seconds to stabilize after the ignition is turned on, and goes back to empty when the ignition is turned off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 94 INSTRUMENTS AND CONTROLS Fuel Gauge (Uplevel) When the ignition is on, the fuel gauge indicates about how much fuel is left in the tank. . The gauge moves a little while turning a corner or speeding up. . The gauge takes a few seconds to stabilize after the ignition is turned on, and goes back to empty when the ignition is turned off. Engine Coolant Temperature Gauge (Base Level) While driving under normal operating conditions, if the red LED is illuminated, the engine is too hot. Pull off the road, stop the vehicle, and turn off the engine as soon as possible. Engine Coolant Temperature Gauge (Uplevel) When the indicator nears empty, the low fuel light comes on. There is still a little fuel left, but the fuel tank should be filled soon. Here are four things that some owners ask about. None of these show a problem with the fuel gauge: . At the service station, the fuel pump shuts off before the gauge reads full. . It takes a little more or less fuel to fill up than the gauge indicated. For example, the gauge indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. This gauge shows the engine coolant temperature. If the gauge pointer moves into the red zone, the engine is too hot. This gauge measures the temperature of the vehicle's engine. This reading indicates the same thing as the warning light. It means that the engine coolant has overheated. If the vehicle has been operating under normal driving conditions, pull off the road, stop the vehicle, and turn off the engine as soon as possible. See Engine Overheating 0 283 for more information. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Seat Belt Reminders Driver Seat Belt Reminder Light There is a driver seat belt reminder light on the instrument cluster. Front Passenger Seat Belt Reminder Light The vehicle may have a front passenger seat belt reminder light near the passenger airbag status indicator. See Passenger Sensing System 0 52. 95 The front passenger seat belt reminder light and chime may come on if an object is put on the seat such as a briefcase, handbag, grocery bag, laptop, or other electronic device. To turn off the reminder light and/or chime, remove the object from the seat or buckle the seat belt. Airbag Readiness Light When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their seat belt. Then the light stays on solid until the belt is buckled. This cycle may continue several times if the driver remains or becomes unbuckled while the vehicle is moving. If the driver seat belt is buckled, neither the light nor the chime comes on. When the vehicle is started, this light flashes and a chime may come on to remind passengers to fasten their seat belt. Then the light stays on solid until the belt is buckled. This cycle continues several times if the front passenger remains or becomes unbuckled while the vehicle is moving. If the front passenger seat belt is buckled, neither the chime nor the light comes on. This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), the passenger sensing system, the pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module. For more information on the airbag system, see Airbag System 0 46. The airbag readiness light comes on for several seconds when the vehicle is started. If the light does not come on then, have it fixed immediately. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 96 INSTRUMENTS AND CONTROLS readiness light is on, there may be a problem with the lights or the passenger sensing system. See your dealer for service right away. { Warning If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. The airbags in the vehicle might not inflate in a crash, or they could even inflate without a crash. To help avoid injury, have the vehicle serviced right away. If there is a problem with the airbag system, a Driver Information Center (DIC) message may also come on. Passenger Airbag Status Indicator The vehicle has a passenger sensing system. See Passenger Sensing System 0 52 for important safety information. The passenger airbag status indicator is in the overhead console. { Warning When the vehicle is started, the passenger airbag status indicator will light the symbols for on and off for several seconds as a system check. Then, after several more seconds, the status indicator will light either the on or off symbol to let you know the status of the front outboard passenger frontal airbag and knee airbag. If the on symbol is lit on the passenger airbag status indicator, it means that the front outboard passenger frontal airbag and knee airbag are allowed to inflate. If the off symbol is lit on the airbag status indicator, it means that the passenger sensing system has turned off the front outboard passenger frontal airbag and knee airbag. If, after several seconds, both status indicator lights remain on, if there are no lights at all, or if the airbag If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light 0 95 for more information, including important safety information. Charging System Light The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS check to show the light is working. It should go out when the engine is started. on to show that it is working when the ignition is in Service Mode. See Ignition Positions 0 204. If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer. Driving while this light is on could drain the battery. When this light comes on, or is flashing, the Driver Information Center (DIC) also displays a message. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner. Find a safe place to stop the vehicle. Continuous driving may stall the vehicle abruptly. Malfunction Indicator Lamp (Check Engine Light) This light is part of the vehicle’s emission control on-board diagnostic system. If this light is on while the engine is running, a malfunction has been detected and the vehicle may require service. The light should come Malfunctions are often indicated by the system before any problem is noticeable. Being aware of the light and seeking service promptly when it comes on may prevent damage. Caution If the vehicle is driven continually with this light on, the emission control system may not work as well, the fuel economy may be lower, and the vehicle may not run smoothly. This could lead to costly repairs that might not be covered by the vehicle warranty. 97 Caution Modifications to the engine, transmission, exhaust, intake, or fuel system, or the use of replacement tires that do not meet the original tire specifications, can cause this light to come on. This could lead to costly repairs not covered by the vehicle warranty. This could also affect the vehicle’s ability to pass an Emissions Inspection/Maintenance test. See Accessories and Modifications 0 267. If the light is flashing : A malfunction has been detected that could damage the emission control system and increase vehicle emissions. Diagnosis and service may be required. To help prevent damage, reduce vehicle speed and avoid hard accelerations and uphill grades. If towing a trailer, reduce the amount of cargo being hauled as soon as possible. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 98 INSTRUMENTS AND CONTROLS If the light continues to flash, find a safe place to park. Turn the vehicle off and wait at least 10 seconds before restarting the engine. If the light is still flashing, follow the previous guidelines and see your dealer for service as soon as possible. If the light is on steady : A malfunction has been detected. Diagnosis and service may be required. Check the following: . If fuel has been added to the vehicle using the capless fuel funnel adapter, make sure that it has been removed. See “Filling the Tank with a Portable Gas Can” under Filling the Tank 0 262. The diagnostic system can detect if the adapter has been left installed in the vehicle, allowing fuel to evaporate into the atmosphere. A few driving trips with the adapter removed may turn off the light. . Poor fuel quality can cause inefficient engine operation and poor driveability, which may go away once the engine is warmed up. If this occurs, change the fuel brand. It may require at least one full tank of the proper fuel to turn the light off. See Recommended Fuel (L3B 2.7L L4 Turbo Engine) 0 262 or Recommended Fuel (LSY 2.0L L4 Turbo Engine) 0 261. If the light remains on, see your dealer. Emissions Inspection and Maintenance Programs If the vehicle requires an Emissions Inspection/Maintenance test, the test equipment will likely connect to the vehicle's Data Link Connector (DLC). The DLC is under the instrument panel to the left of the steering wheel. Connecting devices that are not used to perform an Emissions Inspection/ Maintenance test or to service the vehicle may affect vehicle operation. See Add-On Electrical Equipment 0 265. See your dealer if assistance is needed. The vehicle may not pass inspection if: . The light is on when the engine is running. . The light does not come on when the ignition is in Service Mode. . Critical emission control systems have not been completely diagnosed. If this happens, the vehicle would not be ready for inspection and might require several days of routine driving before the system is ready for inspection. This can happen if the 12-volt battery has recently been replaced or run down, or if the vehicle has been recently serviced. See your dealer if the vehicle will not pass or cannot be made ready for the test. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Brake System Warning Light This light should come on briefly when the vehicle is turned on. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the light comes on and stays on at start up, there is a brake problem. Have the brake system inspected right away. If the light comes on while driving, pull off the road and stop carefully. The brake system has electric brake boost. Vehicle speed may be limited when the brake system warning light comes on. The brake pedal might be harder to push, or the brake pedal may go closer to the floor. It could take longer to stop. If the light is still on, have the vehicle towed for service. See Towing the Vehicle 0 317. { Warning The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service. Electric Parking Brake Light The parking brake status light comes on when the parking brake is applied. If the light continues flashing after the parking brake is released, or while driving, there is a problem with the Electric Parking Brake System. A message may also display in the Driver Information Center (DIC). 99 If the light does not come on, or remains flashing, see your dealer. Service Electric Parking Brake Light On some vehicles the service electric parking brake light should come on briefly when the vehicle is started. If it does not come on, have it fixed so it will be ready to warn if there is a problem. For vehicles with the reconfigurable cluster, this light may not come on when the vehicle is started. If this light stays on, the vehicle should be taken to a dealer as soon as possible. See Electric Parking Brake 0 221. A message may also display in the Driver Information Center (DIC). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 100 INSTRUMENTS AND CONTROLS Antilock Brake System (ABS) Warning Light If both the ABS warning light and the brake system warning light are on, ABS is not functioning and there is a problem with the regular brakes. See your dealer for service. Automatic Vehicle Hold (AVH) Light See Brake System Warning Light 0 99. Performance Shifting Light This warning light should come on briefly when the vehicle is turned on. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the light comes on while driving, safely stop as soon as it is possible and turn off the vehicle. Then turn on the vehicle again to reset the system. If the ABS warning light stays on, or comes on again while driving, the vehicle needs service. A chime may also sound when the light stays on. If the ABS warning light is the only light on, the vehicle has regular brakes, but ABS is not functioning. This light comes on when AVH is actively holding the vehicle. See Automatic Vehicle Hold (AVH) 0 223. If equipped, this light may display green when Sport Mode is activated and certain driving conditions are met. Sport Mode detects when the vehicle is being driven in a competitive manner, and adjusts the shifting of the gears accordingly. See Driver Mode Control 0 225. Lane Keep Assist (LKA) Light After the vehicle is started, this light turns off and stays off if LKA has not been turned on or is unavailable. If equipped, this light is white if LKA is turned on, but not ready to assist. This light is green if LKA is turned on and is ready to assist. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS LKA may assist by gently turning the steering wheel if the vehicle approaches a detected lane marking. The LKA light is amber when assisting. See Forward Collision Alert (FCA) System 0 251. Pedestrian Ahead Indicator This light flashes amber as a Lane Departure Warning (LDW) alert, to indicate that the lane marking has been crossed. LKA will not assist or alert if the turn signal is active in the direction of lane departure, or if LKA detects that you are accelerating, braking, or actively steering. If equipped, this indicator will display amber when a nearby pedestrian is detected in front of the vehicle. See Lane Keep Assist (LKA) 0 259. See Front Pedestrian Braking (FPB) System 0 255. Vehicle Ahead Indicator Traction Off Light If equipped, this indicator will display green when a vehicle is detected ahead and amber when you are following a vehicle ahead much too closely. This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your 101 dealer. If the system is working normally, the indicator light then turns off. The traction off light comes on when the Traction Control System (TCS) has been turned off by pressing and releasing the TCS/StabiliTrak/ Electronic Stability Control (ESC) button. This light and the StabiliTrak OFF light come on when StabiliTrak/ESC is turned off. If the TCS is off, wheel speed will be limited when necessary to protect the driveline from damage. Adjust driving accordingly. See Traction Control/Electronic Stability Control 0 223. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 102 INSTRUMENTS AND CONTROLS StabiliTrak OFF Light This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. This light comes on when the StabiliTrak/Electronic Stability Control (ESC) system is turned off. If StabiliTrak/ESC is off, the Traction Control System (TCS) is also off. If StabiliTrak/ESC and TCS are off, the system does not assist in controlling the vehicle. Turn on the TCS and the StabiliTrak/ESC systems, and the warning light turns off. See Traction Control/Electronic Stability Control 0 223. Traction Control System (TCS)/StabiliTrak Light This light comes on briefly when the engine is started. Driver Mode Control Light This light comes on when Sport Mode is selected. If the light does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light is on and not flashing, the TCS and potentially the StabiliTrak/ ESC system have been disabled. A Driver Information Center (DIC) message may display. Check the DIC messages to determine which feature(s) is no longer functioning and whether the vehicle requires service. If the light is on and flashing, the TCS and/or the StabiliTrak/ESC system is actively working. See Traction Control/Electronic Stability Control 0 223. This light comes on when Snow/Ice Mode is selected. This light comes on when My Mode is selected. See Driver Mode Control 0 225. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Tire Pressure Light problem is not corrected, the light will come on at every ignition cycle. See Tire Pressure Monitor Operation 0 306. Engine Oil Pressure Light Caution For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure 0 303. When the Light Flashes First and Then Is On Steady If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil low can also damage the engine. The repairs would not be covered by the vehicle warranty. Check the oil level as soon as possible. Add oil if required, but if the oil level is within the operating range and the oil pressure is still low, have the vehicle serviced. Always follow the maintenance schedule for changing engine oil. 103 This light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the light comes on and stays on, it means that oil is not flowing through the engine properly. The vehicle could be low on oil and might have some other system problem. See your dealer. Low Fuel Warning Light This light is near the fuel gauge and comes on briefly when the ignition is turned on as a check to show it is working. It also comes on when the fuel tank is low on fuel. The light turns off when fuel is added. If it does not, have the vehicle serviced. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 104 INSTRUMENTS AND CONTROLS Security Light This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer 0 123. Cruise Control Light IntelliBeam Light The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation 0 21. This light comes on when the IntelliBeam system, if equipped, is enabled. See Exterior Lamp Controls 0 122. The cruise control light is white when the cruise control is on and ready, and turns green when the cruise control is set and active. See Cruise Control 0 232. Adaptive Cruise Control Light Lamps On Reminder High-Beam On Light This light comes on when the exterior lamps are in use, except when only the Daytime Running Lamps (DRL) are active. See Exterior Lamp Controls 0 122. This light is white when the Adaptive Cruise Control (ACC, if equipped) is on and ready, and turns green when the ACC is set and active. See Adaptive Cruise Control (Advanced) 0 235. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Door Ajar Light 1. Press T to scroll to the Options menu. Use the thumbwheel to scroll to Info Pages and press the thumbwheel to select. 2. Scroll y or z to move through the list of possible info displays. 3. Press the thumbwheel while an item is highlighted to select or deselect that item. This light comes on when a door is open or not securely latched. Before driving, check that all doors are properly closed. Information Displays Driver Information Center (DIC) (Base Level) The DIC is displayed in the instrument cluster. It shows the status of many vehicle systems. 105 S or T : Press to move between the interactive display zones in the cluster. Press S to go back to the previous menu. y or z : Use the thumbwheel to scroll to the previous or next selection. The info pages can also be turned on or off through the DIC Info Page Options. DIC Information Displays The following is the list of all possible DIC information displays. Some of the information displays may not be available for your particular vehicle. Info Page Options While in the Info Page Options menu, the info pages can be restored to the default factory settings by pressing and holding R on the left steering wheel controls and the thumbwheel on the right steering wheel controls at the same time. The info displays on the DIC can be turned on or off through the Options menu. Speed : Shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph). V : Press the thumbwheel to open a menu or select a menu item. Press and hold to reset values on certain screens. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 106 INSTRUMENTS AND CONTROLS Speed limit signs in your vehicle display may vary from actual road speed depending on the version of your current navigation map Trip 1 or Trip 2 and Average Fuel Economy : The Trip display shows the current distance traveled, in either kilometers (km) or miles (mi), since the trip odometer was last reset. The trip odometer can be reset by pressing V and selecting yes or no while this display is active. The Average Fuel Economy display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. This number reflects only the approximate average fuel economy that the vehicle has right now, and will change as driving conditions change. The Average Fuel Economy can be reset by pressing V and selecting yes or no while this display is active. Fuel Range : Shows the approximate distance the vehicle can be driven without refueling. LOW will be displayed when the vehicle is low on fuel. The fuel range estimate is based on an average of the vehicle's fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. Oil Life : Shows an estimate of the oil's remaining useful life. If REMAINING OIL LIFE 99% is displayed, that means 99% of the current oil life remains. When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. The oil should be changed as soon as possible. See Engine Oil 0 273. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended. See Maintenance Schedule 0 329. The Oil Life display must be reset after each oil change. It will not reset itself. Do not reset the Oil Life display accidentally at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. See Engine Oil Life System 0 275. Air Filter Life : If equipped, Shows an estimate of the engine air filter’s remaining useful life and the state of the system. Engine Air Filter Life 95% means 95% of the current air filter life remains. Messages will display based on the engine air filter life and the state of the system. When the REPLACE AT NEXT OIL CHANGE message displays, the engine air filter should be replaced at the time of the next oil change. When the REPLACE SOON message displays, the engine air filter should be replaced at the earliest convenience. The Air Filter Life display must be reset after the engine air filter replacement. To reset, see Engine Air Filter Life System 0 276. Brake Pad Life : If equipped, This displays an estimate of the remaining life of the front and rear brake pads. Messages will display based on brake pad wear and the state of the system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Reset the Brake Pad Life display after replacing the brake pads. See Brake Pad Life System (If Equipped) 0 285. Tire Pressure : Shows the approximate pressures of all four tires. Tire pressure is displayed in either kilopascal (kPa) or in pounds per square inch (psi). If the pressure is low, the value for that tire is shown in amber. See Tire Pressure Monitor System 0 305 and Tire Pressure Monitor Operation 0 306. Fuel Economy : Displays average fuel economy, the best fuel economy over the selected distance, and a bar graph showing instantaneous fuel economy. Average Speed : Displays the average vehicle speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is based on the various vehicle speeds recorded since the last reset. Reset the average speed by pressing the thumbwheel while this display is active to show a confirmation window to select yes or no. Timer : This display can be used as a timer. To start the timer, press the thumbwheel while this display is active. The display will show the amount of time that has passed since the timer was last reset. To stop the timer, press the thumbwheel briefly while this display is active and the timer is running. Press the thumbwheel while this display is active to reset the timer. Follow Distance/Gap Setting : When Adaptive Cruise Control (ACC) is not engaged, the current follow time to the vehicle ahead is displayed as a time value on this page. When ACC has been engaged, the display switches to the gap setting page. This page shows the current gap setting along with the vehicle ahead telltale. 107 Oil Temperature : Shows the engine oil temperature in either degrees Celsius (°C) or degrees Fahrenheit (°F). Engine Hours (Hourmeter) : Shows the total number of hours the engine has run. The display also shows the engine idle hours. Engine Boost : Displays engine manifold pressure relative to ambient air pressure. It will display boost pressure generated by the turbocharging system. Transmission Fluid Temperature : Shows the temperature of the automatic transmission fluid in either degrees Celsius (°C) or degrees Fahrenheit (°F). Driver Assistance : If equipped, shows information for Lane Keep Assist (LKA) and Forward Collision Alert (FCA). Info Page Options : Scroll to choose which info pages appear on the DIC. Press the thumbwheel to select or deselect. Battery Voltage : Shows the current battery voltage. Blank Page : Allows for no information to be displayed in the cluster info display areas. Coolant Temperature : Shows the engine coolant temperature in either degrees Celsius (°C) or degrees Fahrenheit (°F). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 108 INSTRUMENTS AND CONTROLS Driver Information Center (DIC) (Uplevel) The DIC is displayed in the instrument cluster. It shows the status of many vehicle systems. DIC information is broken down into two main zones: Zone 1 : Displays on the instrument cluster to the left of the speedometer. Zone 2 : Displays on the instrument cluster to the right of the speedometer. S or T : Press to move left or right DIC Info Tiles Selection Instantaneous Fuel Economy : Displays the current fuel economy in liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number reflects only the approximate fuel economy that the vehicle has right now and changes frequently as driving conditions change. This display cannot be reset. The following is the list of all possible DIC Info Tiles. Depending on the vehicle, some may not be available. Oil Pressure : Shows the current oil pressure in either kilopascal (kPa) or in pounds per square inch (psi). Zone 1 Oil Temperature : Shows the current oil temperature in either degrees Celsius (°C) or degrees Fahrenheit (°F). between the interactive display zones in the cluster. Press the thumbwheel to select. y or z : Use the thumbwheel to scroll up or down in a list. Press the thumbwheel to select. Battery Voltage : Displays the current battery voltage. The battery voltage can fluctuate while viewing this information on the DIC. This is normal. Coolant Temperature : Displays the coolant temperature in either degrees Celsius (°C) or degrees Fahrenheit (°F). Engine Boost : If equipped, displays engine manifold pressure relative to ambient air pressure. It will display boost pressure generated by the turbocharging system. Time & Temperature : Displays the current time, and the current outside air temperature. Tire Status : Shows individual tire pressures and overall temperature as either Cold, Cool, Normal,Warm, or Hot. Normal is typical for normal driving while Warm is typical for aggressive driving. Unknown may be displayed if tire temperature information is unavailable. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Transmission Fluid Temperature : Shows the temperature of the transmission fluid in either degrees Celsius (°C) or degrees Fahrenheit (°F). Zone 2 Trip 1 or 2/Average Speed/Average Fuel Economy : Trip displays the current distance traveled, in either kilometers (km) or miles (mi), since the trip odometer was last reset. The trip odometer can be reset by pressing and holding the thumbwheel while this display is active. Average Speed displays the average speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is calculated based on the various vehicle speeds recorded since the last reset of this value. The average speed can be reset by pressing and holding the thumbwheel while this display is active. Average Fuel Economy displays the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. This number reflects only the approximate average fuel economy that the vehicle has right now, and will change as driving conditions change. The Average Fuel Economy can be reset by pressing and holding the thumbwheel while this display is active. Fuel Economy : Displays the average fuel economy, the best fuel economy over the selected distance, and a bar graph showing instantaneous fuel economy. Pressing the thumbwheel will open a menu to change the selected distance or reset the current values. Trip Timer/Fuel Used : This display can be used as a timer. To start/stop the timer, press the thumbwheel while this display is active and then select the start/stop the timer. The display will show the amount of time that has passed since the timer was last reset. To reset the timer to zero, press the thumbwheel to access the menu while this display is active. Fuel Used displays the approximate liters (L) or gallons (gal) of fuel that have been used since last reset. The 109 fuel used can be reset by pressing the thumbwheel and selecting Reset Fuel Used in the menu. Current Drive Cycle : Displays information in relation to the current drive cycle including Distance Traveled, Average Fuel Economy, and the Total Time. They will reset after the drive cycle is completed. Driver Assistance : If equipped, Displays the states of all active safety systems. Oil Life : Displays an estimate of the oil's remaining useful life. If REMAINING OIL LIFE 99% is displayed, that means 99% of the current oil life remains. When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. The oil should be changed as soon as possible. See Engine Oil 0 273. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule. See the Maintenance Schedule booklet. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 110 INSTRUMENTS AND CONTROLS The Oil Life display must be reset after each oil change. It will not reset itself. Do not reset the Oil Life display accidentally at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. See Engine Oil Life System 0 275. Air Filter Life : If equipped, shows an estimate of the engine air filter’s remaining useful life and the state of the system. Engine Air Filter Life 95% means 95% of the current air filter life remains. Messages will display based on the engine air filter life and the state of the system. When the REPLACE AT NEXT OIL CHANGE message displays, the engine air filter should be replaced at the time of the next oil change. When the REPLACE NOW message displays, the engine air filter should be replaced as soon as possible. Head-Up Display (HUD) { Warning If the HUD image is too bright or too high in your field of view, it may take you more time to see things you need to see when it is dark outside. Be sure to keep the HUD image dim and placed low in your field of view. If equipped with HUD, some information concerning the operation of the vehicle is projected onto the windshield. The image is projected through the HUD lens on top of the instrument panel. The information appears as an image focused out toward the front of the vehicle. The HUD information can be displayed in various languages. The speedometer reading and other numerical values can be displayed in either English or metric units. The language selection is changed through the radio and the units of measurement is changed through the Driver Information Center (DIC). See Settings 0 169 and “Options” under Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. Caution If you try to use the HUD image as a parking aid, you may misjudge the distance and damage your vehicle. Do not use the HUD image as a parking aid. HUD Display on the Windshield Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS The HUD may display some of the following vehicle information and vehicle messages or alerts: . Speed . Audio . Phone . Navigation . Performance . Driver Assistance Features . Vehicle Messages Some vehicle messages or alerts displayed in the HUD may be cleared by using the steering wheel controls. See Vehicle Messages 0 113. The HUD control is to the left of the steering wheel. To adjust the HUD image: 1. Adjust the driver seat. 2. Start the engine. 111 3. Use the following settings to adjust the HUD. Head-Up Display (HUD) Rotation Option $ : Press or lift to center the HUD This feature allows for adjusting the angle of the HUD image. image. The HUD image can only be adjusted up and down, not side to side. ! : Press to select the display view. Each press will change the display view. D : Lift and hold to brighten the display. Press and hold to dim the display. Continue to hold to turn the display off. The HUD image will automatically dim and brighten to compensate for outside lighting. The HUD brightness control can also be adjusted as needed. The HUD image can temporarily light up depending on the angle and position of sunlight on the HUD display. This is normal. Polarized sunglasses could make the HUD image harder to see. Press SEL on the steering wheel controls while Head-up Display Rotation is highlighted to enter Adjust Mode. Press y or z to adjust the angle of the HUD display. Press S or T to highlight OK, then press SEL to save the setting. CANCEL can also be selected to cancel the setting. The vehicle must be in P (Park). See Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. HUD Views There are four views in the HUD. Some vehicle information and vehicle messages or alerts may be displayed in any view. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 112 INSTRUMENTS AND CONTROLS Speed View : This displays digital speed in English or metric units, speed limit, vehicle ahead indicator, Lane Departure Warning/Lane Keep Assist, and Adaptive Cruise Control and set speed. Some information only appears on vehicles that have these features, and when they are active. Audio/Phone View : This displays digital speed, indicators from speed view along with audio/phone information. The current radio station, media type, and incoming calls will be displayed. All HUD views may briefly display audio information when the driver uses the steering wheel controls to adjust the audio settings appearing in the instrument cluster. Incoming phone calls may display in any HUD view. Navigation View : This display includes digital speed, indicators from speed view along with Turn-by-Turn Navigation information in some vehicles. The compass heading is displayed when navigation routing is not active. Navigation Turn-by-Turn Alerts shown in the instrument cluster may also be displayed in any HUD view. The shift timing lights at the top of the display will appear with increases in engine rpm. The rows of lights get closer together as the shift point gets closer. Shift the transmission before the lights come together in the display. Shift immediately if the lights are flashing. See Manual Mode (Electronic Shifter) 0 219 or Manual Mode (Mechanical Shifter) 0 218. Care of the HUD Clean the inside of the windshield to remove any dirt or film that could reduce the sharpness or clarity of the HUD image. Clean the HUD lens with a soft cloth sprayed with glass cleaner. Wipe the lens gently, then dry it. HUD Troubleshooting Performance View : This displays digital speed, indicators from speed view along with rpm reading, transmission positions, Shift Timing Light Position (CT4-V only), and gear shift indicator (if available). If you cannot see the HUD image when the ignition is on, check that: . Nothing is covering the HUD lens. . The HUD brightness setting is not too dim or too bright. . The HUD is adjusted to the proper height. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS . Polarized sunglasses are not worn. . The windshield and HUD lens are clean. If the HUD image is not correct, contact your dealer. The windshield is part of the HUD system. If the windshield needs replacing, see Windshield Replacement 0 289. Vehicle Messages Messages displayed on the Driver Information Center (DIC) indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing the thumbwheel. The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously; clearing the message does not correct the problem. If a SERVICE message appears, see your dealer. Follow the instructions given in the messages. The system displays messages regarding the following topics: . Service Messages . Fluid Levels . Vehicle Security . Brakes . Steering . Ride Control Systems . Driver Assistance Systems . Cruise Control . Lighting and Bulb Replacement . Wiper/Washer Systems . Doors and Windows . Seat Belts . Airbag Systems . Engine and Transmission . Tire Pressure . Battery 113 Engine Power Messages REDUCED ACCELERATION DRIVE WITH CARE This message displays when the vehicle's propulsion power is reduced. A reduction in propulsion power can affect the vehicle's ability to accelerate. If this message is on, but there is no observed reduction in performance, proceed to your destination. Under certain conditions the performance may be reduced the next time the vehicle is driven. The vehicle may be driven while this message is on, but maximum acceleration and speed may be reduced. Anytime this message stays on, or displays repeatedly, the vehicle should be taken to your dealer for service as soon as possible. Under certain operating conditions, propulsion will be disabled. Try restarting after the ignition has been off for two minutes. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 114 INSTRUMENTS AND CONTROLS Vehicle Speed Messages SPEED LIMITED TO XXX KM/ H (MPH) This message shows that the vehicle speed has been limited to the speed displayed. The limited speed is a protection for various propulsion and vehicle systems, such as lubrication, thermal, brakes, suspension, Teen Driver if equipped, or tires. Vehicle Personalization The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available. For System, Apps, and Personal features and functions, see Settings 0 169. To access the vehicle personalization menu: 1. Touch the Settings icon on the Home Page of the infotainment display. 2. Touch Vehicle to display a list of available options. 3. Touch to select the desired feature setting. 4. Touch or on. 9 or R to turn a feature off 5. Touch z to go to the top level of the Settings menu. The menu may contain the following: Rear Seat Reminder This allows for a chime and a message when the rear door has been opened before or during operation of the vehicle. Touch Off or On. Driver Mode Customization For information on the range of settings, see “Driver Mode Customization” in Driver Mode Control 0 225. V-Mode Touch and the following may display: . Engine Sound . Steering . Suspension . Brake Feel . Powertrain For information on the range of settings, see “Driver Mode Customization” in Driver Mode Control 0 225. Touch and the following may display: . My Mode . V-Mode . Visualization Visualization My Mode Touch Off or On. Touch and the following may display: . Engine Sound . Steering . Suspension . Brake Feel This setting shows handling and performance settings on the infotainment display when changing drive modes. Climate and Air Quality Touch and the following may display: . Auto Fan Speed . Air Quality Sensor Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS . . . . . Auto Cooled Seats Auto Heated Seats Auto Defog Auto Rear Defog Ionizer Auto Fan Speed This setting specifies the amount of airflow when the climate control fan setting is Auto Fan. 115 Auto Heated Seats Ionizer This setting automatically turns on and regulates the heated seats when the cabin temperature is cool. The auto heated seats can be turned off by using the heated seat buttons on the center stack. See Heated and Ventilated Front Seats 0 36. If equipped and on, this feature helps clean the air inside the vehicle and remove contaminants such as pollen, odors, and dust. See Dual Automatic Climate Control System 0 182. Touch Low, Medium, or High. If equipped with auto heated steering wheel, this feature will turn on when the auto heated seats turn on. Air Quality Sensor Touch Off or On. This setting switches the system into Recirculation Mode based on the quality of the outside air. Auto Defog Touch Off or On. Collision / Detection Systems Touch Off or On. Touch and the following may display: . Alert Type . Forward Collision System . Front Pedestrian Detection . Adaptive Cruise Go Notifier . Lane Change Alert . Rear Camera Park Assist Symbols . Rear Cross Traffic Alert Auto Cooled Seats Auto Rear Defog Alert Type This setting automatically turns on and regulates the ventilated seats when the cabin temperature is warm. See Heated and Ventilated Front Seats 0 36. This setting automatically turns the rear defogger on when the engine is started. This setting specifies the type of vehicle feedback provided, either a beep or seat vibration, when you are in danger of colliding with an object. Touch Off, Low Sensitivity, or High Sensitivity. Touch Off or On. This setting automatically turns the front defogger on when the engine is started. Touch Off or On. Touch Beeps or Safety Alert Seat. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 116 INSTRUMENTS AND CONTROLS Forward Collision System This setting can alert of a potential crash with a detected vehicle ahead and can apply brakes to help reduce a collision’s severity. Touch Off, Alert, or Alert and Brake. Front Pedestrian Detection This feature may help avoid or reduce the harm caused by front-end crashes with nearby pedestrians. See Front Pedestrian Braking (FPB) System 0 255. Touch Off, Alert, or Alert and Brake. Adaptive Cruise Go Notifier This setting determines if an alert will appear when Adaptive Cruise Control brings the vehicle to a complete stop and the vehicle ahead of you starts moving again. See Adaptive Cruise Control (Advanced) 0 235. Touch Off or On. Lane Change Alert This setting specifies if an alert will display on the outside mirror to help you avoid crashing into a vehicle in your blind spot, or rapidly approaching your blind spot, during a lane change maneuver. See Lane Change Alert (LCA) 0 257. Touch the controls on the infotainment display to adjust the volume. Touch Off or On. Reverse Tilt Mirror Rear Camera Park Assist Symbols When on, the driver, passenger, or both driver and passenger outside mirrors will tilt downward when the vehicle is shifted into R (Reverse) to improve visibility of the ground near the rear wheels. They may move from their tilted position when the vehicle is shifted out of R (Reverse) or turned off. See Reverse Tilt Mirrors 0 24. This setting enables the Rear Camera Park Assist Symbols. See Assistance Systems for Parking or Backing 0 245. Touch Off or On. Rear Cross Traffic Alert This setting specifies if an alert will display when the vehicle detects approaching rear cross traffic when in R (Reverse). See Assistance Systems for Parking or Backing 0 245. Touch Off or On. Touch Off, On - Driver and Passenger, On - Driver, or On - Passenger. Remote Mirror Folding Touch and the following may display: . Chime Volume . Reverse Tilt Mirror . Remote Mirror Folding . Rain Sense Wipers This setting adjusts the outside mirrors when locking and unlocking the vehicle. Press Q on the remote key or lock button on the door handle to fold the mirrors in. Press K on the remote key or unlock button on the door handle to unfold the mirrors. See Folding Mirrors 0 23. Chime Volume Touch Off or On. Comfort and Convenience This setting determines the chime volume level. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Rain Sense Wipers Power Door Locks This setting automatically turns on the wipers when moisture is detected and the wiper switch is in intermittent mode. Touch and the following may display: . Auto Door Lock . Delayed Door Lock Touch Disabled or Enabled. Lighting Touch and the following may display: . Vehicle Locator Lights . Exit Lighting Auto Door Lock When this feature is turned on, all doors will automatically lock when the vehicle is shifted out of P (Park). The doors will automatically unlock when the vehicle is shifted into P (Park). 117 . Passive Door Lock . Remote Left in Vehicle Alert . Remote Removed from Vehicle Alert Remote Unlock Light Feedback This setting flashes the exterior lamps when the vehicle is unlocked with the remote key. Touch Off or Flash Lights. Remote Lock Feedback Delayed Door Lock This setting specifies how the vehicle responds when the vehicle is locked with the remote key. This setting delays the locking of the vehicle’s doors. Touch Off, Lights and Horn, Lights Only, or Horn Only. Touch Off or On. Touch Off or On. Remote Door Unlock Exit Lighting Remote Lock, Unlock, and Start This setting specifies how long the headlamps stay on after the vehicle is turned off and exited. Touch and the following may display: . Remote Unlock Light Feedback . Remote Lock Feedback . Remote Door Unlock . Remote Start Auto Cool Seats . Remote Start Auto Heat Seats . Remote Window Operation . Passive Door Unlock This setting specifies whether all doors, or just the driver door, unlock when pressing K on the remote key. Vehicle Locator Lights This setting flashes the headlamps of your vehicle when you press K on the remote key. Touch Off, 30 Seconds, 60 Seconds, or 120 Seconds. Touch Off or On. Touch All Doors or Driver Door. Remote Start Auto Cool Seats This setting automatically turns on the ventilated seats when using the remote start function on warm days. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 118 INSTRUMENTS AND CONTROLS See Heated and Ventilated Front Seats 0 36 and Remote Vehicle Start 0 12. Touch Off or On. Remote Start Auto Heat Seats This setting automatically turns on the heated seats when using the remote start function on cold days. See Heated and Ventilated Front Seats 0 36 and Remote Vehicle Start 0 12. Passive Door Unlock This setting specifies which doors unlock when using the button on the driver door handle to unlock the vehicle. Touch Off or On. Passive Door Lock Seating Position This setting specifies if the vehicle will automatically lock, or lock and provide an alert after all the doors are closed, and you walk away from the vehicle with the remote key. See Remote Keyless Entry (RKE) System Operation 0 7. Touch and the following may display: . Seat Entry Memory . Seat Exit Memory Touch Off, On with Horn Chirp, or On. Touch Off or On. Remote Left in Vehicle Alert Remote Window Operation This feature sounds an alert when the remote key is left in the vehicle. This menu also enables Remote No Longer in Vehicle Alert. Touch Off or On. This feature beeps the horn three times when exiting a running vehicle with the remote key. Touch All Doors or Driver Door Only. If equipped with Auto Heated Steering Wheel, this feature will turn on when the Remote Start Auto Heated Seats turn on. If equipped, this feature enables remote operation of the windows with the remote key. See Remote Keyless Entry (RKE) System Operation 0 7. Remote Removed from Vehicle Alert Touch Off or On. Seat Entry Memory This feature automatically recalls the previously stored 1 or 2 button positions when the ignition is changed from off to on or ACC/ACCESSORY. See Memory Seats 0 33. Touch Off or On. Seat Exit Memory This feature automatically recalls the previously stored exit button positions when the ignition is changed from on or ACC/ACCESSORY to off if the driver door is open or opened. See Memory Seats 0 33. Touch Off or On. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS Valet Mode This will lock the infotainment system and steering wheel controls. It may also limit access to vehicle storage locations, if equipped. To enable valet mode: 1. Enter a four-digit code on the keypad. 2. Touch Enter to go to the confirmation screen. 3. Re-enter the four-digit code. Universal Remote System Universal Remote System Programming 119 Do not use the Universal Remote system with any garage door opener that does not have the stop and reverse feature. This includes any garage door opener model manufactured before April 1, 1982. Read these instructions completely before programming the Universal Remote system. It may help to have another person assist with the programming process. Keep the original hand-held transmitter for use in other vehicles as well as for future programming. Erase the programming when vehicle ownership is terminated. See “Erasing Universal Remote System Buttons” later in this section. Touch Lock or Unlock to lock or unlock the system. Touch Back to go back to the previous menu. If equipped, these buttons are in the overhead console. This system can replace up to three remote control transmitters used to activate devices such as garage door openers, security systems, and home automation devices. These instructions refer to a garage door opener, but can be used for other devices. To program a garage door opener, park outside directly in line with and facing the garage door opener receiver. Clear all people and objects near the garage door. Make sure the hand-held transmitter has a new battery for quick and accurate transmission of the radio-frequency signal. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 120 INSTRUMENTS AND CONTROLS Programming the Universal Remote System For questions or programming help, see www.homelink.com/gm. Programming involves time-sensitive actions, and may time out causing the procedure to be repeated. To program up to three devices: 1. Hold the end of the hand-held transmitter about 3 to 8 cm (1 to 3 in) away from the Universal Remote system buttons with the indicator light in view. The hand-held transmitter was supplied by the manufacturer of the garage door opener receiver. 2. At the same time, press and hold both the hand-held transmitter button and one of the three Universal Remote system buttons to be used to operate the garage door. Do not release either button until the indicator light changes from a slow to a rapid flash. Then release both buttons. Some garage door openers may require substitution of Step 2 with the procedure under “Radio Signals for Some Gate Operators” later in this section. 3. Press and hold the newly programmed Universal Remote system button for five seconds while watching the indicator light and garage door activation. . If the indicator light stays on continuously or the garage door moves when the button is pressed, then programming is complete. There is no need to complete Steps 4–6. . If the indicator light does not come on or the garage door does not move, a second button press may be required. For a second time, press and hold the newly programmed button for five seconds. If the light stays on or the garage door moves, programming is complete. . If the indicator light blinks rapidly for two seconds, then changes to a solid light and the garage door does not move, continue with programming Steps 4–6. Learn or Smart Button 4. After completing Steps 1–3, locate the Learn or Smart button inside garage on the garage door opener receiver. The name and color of the button may vary by manufacturer. 5. Press and release the Learn or Smart button. Step 6 must be completed within 30 seconds of pressing this button. 6. Inside the vehicle, press and hold the newly programmed Universal Remote system button for two seconds and then release it. If the garage door does not move or the lamp on the garage door opener receiver does not flash, Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INSTRUMENTS AND CONTROLS press and hold the same button a second time for two seconds, then release it. Again, if the door does not move or the garage door lamp does not flash, press and hold the same button a third time for two seconds, then release it. The Universal Remote system should now activate the garage door. Repeat the process for programming the two remaining buttons. Press and hold the Universal Remote system button while pressing and releasing the hand-held transmitter button every two seconds until the signal has been successfully accepted by the Universal Remote system. The Universal Remote system indicator light will flash slowly at first and then rapidly. Proceed with Step 3 under “Programming the Universal Remote System” to complete. Radio Signals for Some Gate Operators Universal Remote System Operation For questions or programming help, see www.homelink.com/gm. Using the Universal Remote System Some gate operators and radio-frequency laws require transmitter signals to time out or quit after several seconds of transmission. This may not be long enough for the Universal Remote system to pick up the signal during programming. Press and hold the appropriate Universal Remote system button for at least one-half second. The indicator light will come on while the signal is being transmitted. If the programming did not work, replace Step 2 under “Programming the Universal Remote System” with the following: 121 Erasing Universal Remote System Buttons Erase all programmed buttons when vehicle ownership is terminated. To erase: 1. Press and hold the two outside buttons until the indicator light begins to flash. This should take about 10 seconds. 2. Release both buttons. Reprogramming a Single Universal Remote System Button To reprogram any of the system buttons: 1. Press and hold any one of the buttons. Do not release the button. 2. The indicator light will begin to flash after 20 seconds. Without releasing the button, proceed with Step 1 under “Programming the Universal Remote System.” Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 122 LIGHTING Lighting Exterior Lighting Exterior Lighting Exterior Lamp Controls Exterior Lamp Controls . . . . . . . . . . Exterior Lamps Off Reminder . . . Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . . . . . . Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . Automatic Headlamp System . . . Hazard Warning Flashers . . . . . . . . Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . Cornering Lamps . . . . . . . . . . . . . . . . . 122 123 IntelliBeam System 123 124 124 124 125 The system turns the high-beam headlamps on when it is dark enough and there is no other traffic present. 125 125 The exterior lamp control is on the turn signal lever. Turn the control to the following positions: 126 126 126 126 Lighting Features Entry Lighting . . . . . . . . . . . . . . . . . . . . Exit Lighting . . . . . . . . . . . . . . . . . . . . . . Battery Load Management . . . . . . Battery Power Protection . . . . . . . . Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with the parking lamps and instrument panel lights. This system turns the vehicle's high-beam headlamps on and off according to surrounding traffic conditions. Interior Lighting Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . . . . . Courtesy Lamps . . . . . . . . . . . . . . . . . . Dome Lamps . . . . . . . . . . . . . . . . . . . . . Reading Lamps . . . . . . . . . . . . . . . . . . . 2 : Turns on the headlamps together 127 128 128 129 129 O : Turns off the exterior lamps. The knob returns to the AUTO position after it is released. Turn to O again to reactivate the AUTO mode. AUTO : Automatically turns the exterior lamps on and off, depending on outside lighting. ; : Turns on the parking lamps including all lamps, except the headlamps. This light b comes on in the instrument cluster when the IntelliBeam system is enabled. Turning On and Enabling IntelliBeam Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 LIGHTING To enable the IntelliBeam system, press b on the turn signal lever when it is dark outside and the exterior lamp control is in AUTO or 2. Driving with IntelliBeam The system only activates the high beams when driving over 40 km/h (25 mph). The blue high-beam on light appears on the instrument cluster when the high beams are on. There is a sensor near the top center of the windshield that automatically controls the system. Keep this area of the windshield clear of debris to allow for best system performance. The high-beam headlamps remain on, under the automatic control, until one of the following situations occurs: . The system detects an approaching vehicle's headlamps. . The system detects a preceding vehicle's taillamps. . The outside light is bright enough that high-beam headlamps are not required. 123 . The vehicle's speed drops below . The vehicle's windshield is dirty, 20 km/h (12 mph). . The IntelliBeam system is disabled by the button on the turn signal lever. If this happens, press b on the turn signal lever when the exterior lamp control is in the AUTO or 2 position to reactivate the IntelliBeam system. The instrument cluster light will come on to indicate the IntelliBeam system is reactivated. cracked, or obstructed by something that blocks the view of the light sensor. . The vehicle is loaded such that the front end points upward, causing the light sensor to aim high and not detect headlamps and taillamps. . Driving on winding or hilly roads. The high beams may not turn off automatically if the system cannot detect another vehicle's lamps because of any of the following: . The other vehicle's lamps are missing, damaged, obstructed from view, or otherwise undetected. . The other vehicle's lamps are covered with dirt, snow, and/or road spray. . The other vehicle's lamps cannot be detected due to dense exhaust, smoke, fog, snow, road spray, mist, or other airborne obstructions. Exterior Lamps Off Reminder The automatic high-beam headlamps may need to be disabled if any of the above conditions exist. A warning chime sounds if the driver door is opened while the ignition is off and the exterior lamps are on. Headlamp High/Low-Beam Changer 3 : Push the turn signal lever away from you and release, to turn the high beams on. To return to low beams, push the lever again or pull it toward you and release. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 124 LIGHTING This indicator light turns on in the instrument cluster when the high-beam headlamps are on. Flash-to-Pass The DRL turn off when the exterior lamp controls are turned to ; or the ignition is off. The system may also turn on the headlamps when driving through a parking garage or tunnel. Automatic Headlamp System If the vehicle is started in a dark garage, the automatic headlamp system comes on immediately. If it is light outside when the vehicle leaves the garage, there is a slight delay before the automatic headlamp system turns off the headlamps. During that delay, the instrument cluster may not be as bright as usual. Make sure the instrument panel brightness control is in the full bright position. See Instrument Panel Illumination Control 0 126. When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically. To flash the high beams, pull the turn signal lever toward you, and release. Daytime Running Lamps (DRL) When it is bright enough outside, the headlamps will turn off. DRL can make it easier for others to see the front of your vehicle during the day. If equipped, the DRL will come on when all of the following conditions are met: . The ignition is on. . The exterior lamp control is in AUTO. . The light sensor determines it is daytime. The automatic headlamp system turns off when the exterior lamp control is turned to O or the ignition is off. Lights On with Wipers The light sensor is on top of the instrument panel or on the windshield near the rearview mirror. Do not cover the sensor, otherwise the headlamps will come on when they are not needed. If the windshield wipers are activated in daylight with the engine on, and the exterior lamp control is in AUTO, the headlamps, parking lamps, and other exterior lamps come on. The transition time for the lamps coming Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 LIGHTING on varies based on wiper speed. When the wipers are not operating, these lamps turn off. Move the exterior lamp control to O or ; to disable this feature. Turn and Lane-Change Signals Hazard Warning Flashers 125 If after signaling a turn or lane change, the arrow flashes rapidly or does not come on, a signal function may be inoperative. This vehicle may be equipped with LED lighting. For replacement of any LED lighting, contact your dealer. Cornering Lamps Move the lever all the way up or down to signal a turn. An arrow on the instrument cluster flashes in the direction of the turn or lane change. | : Press this button to make the front and rear turn signal lamps flash on and off. Release the button for at least one second and press again to turn the flashers off. The hazard warning flashers turn on automatically if the airbags deploy. Raise or lower the lever until the arrow starts to flash to signal a lane change. Hold it there until the lane change is completed. If the lever is briefly pressed and released, the turn signal flashes three times. The turn and lane-change signal can be turned off manually by moving the lever back to its original position. If equipped with cornering lamps, they automatically come on when all of the following occur: . The low-beam headlamps are on. . The turn signals are activated or the steering wheel is at a turning angle. . The vehicle speed is below 40 km/h (25 mph). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 126 LIGHTING Interior Lighting Instrument Panel Illumination Control panel illumination control will set the lowest level to which the displays will automatically be adjusted. Courtesy Lamps The courtesy lamps come on when any door is opened, K on the remote key is pressed, or when the ignition is switched off. See Dome Lamps 0 126. Dome Lamps To operate, press the following buttons: j OFF : Press to turn off the dome lamps when any door is opened, K on the remote key is pressed, or when the ignition is switched off. An indicator light on the button will turn on when the dome lamp override is activated. Press j OFF again to deactivate this feature and the indicator light will turn off. The dome lamps will come on when doors are opened, K on the remote key is pressed, or the ignition is switched off. + ON/OFF : Press to turn the dome lamps on and off manually. This feature adjusts the brightness of all illuminated controls. Reading Lamps D : Move the thumbwheel up or down to brighten or dim the lights. There are front and rear reading lamps on the overhead console and over the rear passenger doors. These lamps will come on when any door is opened, K on the remote key is pressed, or when the ignition is switched off. The thumbwheel is functional at night, or when the headlamps or parking lamps are ON. The brightness of the displays automatically adjusts based on outdoor lighting. The instrument The dome lamp controls are in the overhead console. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 LIGHTING To operate, the ignition must be on, or in ACC/ACCESSORY, or using Retained Accessory Power (RAP). To manually turn the reading lamps on or off: Press the lamp lenses on the front reading lamps. Press the lamp lenses over the rear passenger doors. Lighting Features Entry Lighting Some exterior lamps turn on briefly at night, or in areas with limited lighting, when K is pressed on the remote key, see Remote Keyless Entry (RKE) System Operation 0 7. After about 30 seconds the exterior lamps turn off. Entry lighting can be disabled manually by turning the ignition on or to ACC/ ACCESSORY, or by pressing Q on the remote key. When any door is opened or remote unlock pressed, all interior lights turn on and then interior lamps dim to off after 20 seconds after all doors are closed. The entry lighting feature for exterior lighting can be changed. See “Vehicle Locator Lights” under Vehicle Personalization 0 114. 127 Entry Lighting with Approach Detection If equipped with approach detection, the entry lighting feature will automatically turn on when the remote key is detected within approximately 2 m (6 ft) of the vehicle. If the vehicle has remained parked for an extended period of time with no remote key use or Keyless Access operation, approach detection will be disabled. To reactivate, press any button on the remote key or open and close all vehicle doors to re-enable the entry lighting feature on approach. Approach detection will not work if: . The vehicle battery is low. . The ignition is on or in ACC/ ACCESSORY. . Entry lighting is set to Off. See “Vehicle Locator Lights” under Vehicle Personalization 0 114. Approach detection will not work with a single remote key if: . The remote key is left within a 5 m (16 ft) range of the vehicle for several minutes Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 128 LIGHTING . The remote key is left inside the vehicle and all the doors are closed To help maximize remote key battery life, do not store the remote key within 5 m (16 ft) of the vehicle. Exit Lighting Some exterior lamps come on at night, or in areas with limited lighting, when the driver door is opened after the ignition is turned off. The dome lamp comes on after the ignition is turned off or any door is opened. The exterior lamps and dome lamp remain on after the door is closed for a set amount of time, then automatically turn off. The exterior lamps turn off immediately by turning the exterior lamp control off. The exit lighting for exterior lights can be changed. See Vehicle Personalization 0 114. Battery Load Management The vehicle has Electric Power Management (EPM), which estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. When the battery's state of charge is low, the voltage is raised slightly to quickly bring the charge back up. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gauge or a voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed. The battery can be discharged at idle if the electrical loads are very high. This is true for all vehicles. This is because the generator (alternator) may not be spinning fast enough at idle to produce all the power that is needed for very high electrical loads. A high electrical load occurs when several of the following are on, such as: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, and loads plugged into accessory power outlets. EPM works to prevent excessive discharge of the battery. It does this by balancing the generator's output and the vehicle's electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories. Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver. If so, a DIC message might be displayed. If a battery message is displayed, it is recommended that the driver reduce the electrical loads as much as possible. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 LIGHTING Battery Power Protection The battery saver feature is designed to protect the vehicle's battery. If some interior lamps are left on and the ignition is turned off, the battery rundown protection system automatically turns the lamp off after some time. Exterior Lighting Battery Saver The exterior lamps turn off about 10 minutes after the ignition is turned off, if the parking lamps or headlamps have been manually left on. This protects against draining the battery. To restart the 10-minute timer, turn the exterior lamp control to the O position and then back to the ; or 2 position. To keep the lamps on for more than 10 minutes, the ignition must be on or in ACC/ACCESSORY. 129 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 130 INFOTAINMENT SYSTEM Infotainment System Introduction Introduction . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . Steering Wheel Controls . . . . . . . . . Using the System . . . . . . . . . . . . . . . . . Software Updates . . . . . . . . . . . . . . . . . 130 131 133 133 136 136 138 139 139 Audio Players Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . . . . 139 USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Bluetooth Audio . . . . . . . . . . . . . . . . . . 142 Navigation Using the Navigation System . . . . Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Navigation Symbols . . . . . . . . . . . . . . Destination . . . . . . . . . . . . . . . . . . . . . . . Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . Global Positioning System (GPS) . . . . . . . . . . . . . . . . . . . Vehicle Positioning . . . . . . . . . . . . . . . 156 156 156 156 Voice Recognition Voice Recognition . . . . . . . . . . . . . . . . 156 Phone Radio AM-FM Radio . . . . . . . . . . . . . . . . . . . . . Radio Data System (RDS) . . . . . . . . Radio Reception . . . . . . . . . . . . . . . . . . Multi-Band Antenna . . . . . . . . . . . . . Problems with Route Guidance . . . . . . . . . . . . . . . . . . . . . . . . If the System Needs Service . . . . . Map Data Updates . . . . . . . . . . . . . . . Database Coverage Explanations . . . . . . . . . . . . . . . . . . . . 143 146 147 148 153 155 155 Bluetooth (Overview) . . . . . . . . . . . . . 162 Bluetooth (Pairing and Using a Phone) . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . 167 Settings Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Trademarks and License Agreements Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . . . 175 Introduction Read the following pages to become familiar with the features. { Warning Taking your eyes off the road for too long or too often while using any infotainment feature can cause a crash. You or others could be injured or killed. Do not give extended attention to infotainment tasks while driving. Limit your glances at the vehicle displays and focus your attention on driving. Use voice commands whenever possible. The infotainment system has built-in features intended to help avoid distraction by disabling some features when driving. These features may gray out when they are unavailable. Many infotainment features are also available through the instrument cluster and steering wheel controls. Before driving: . Become familiar with the operation, center stack controls, steering wheel controls, and infotainment display. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM . Set up the audio by presetting favorite stations, setting the tone, and adjusting the speakers. . Set up phone numbers in advance so they can be called easily by pressing a single control or by using a single voice command. See Distracted Driving 0 189. Active Noise Cancellation (ANC) If equipped, ANC reduces engine noise in the vehicle’s interior. ANC requires the factory-installed audio system, radio, speakers, amplifier (if equipped), induction system, and exhaust system to work properly. Deactivation is required by your dealer if related aftermarket equipment is installed. Overview Infotainment System The infotainment system is controlled by using the infotainment display, controls on the center console, steering wheel controls, and voice recognition. 1. O (Power and Mute) Knob . When off, press the O knob to turn the system on. . Turn to decrease or increase the volume. . Press and hold to turn the power off. . Press to mute/unmute the system when on. . When the power is on and the system is not muted, a quick status pane will display when the knob is pressed. Pressing the knob will mute the system and trigger this pane to show 131 a long press is required to actually power down the system. 2. V Knob . Turn to highlight a feature. Press to activate the highlighted feature. 3. { (Home Page) . Press to go to the Home Page. See “Home Page” later in this section. Press to exit Android Auto or Apple CarPlay. To enter back into Android Auto or Apple CarPlay, press and hold. See Apple CarPlay and Android Auto 0 167. 4. W (Near Field Communication) . See “Near Field Communication (NFC)” under Bluetooth (Overview) 0 162 or Bluetooth (Pairing and Using a Phone) 0 163 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 132 INFOTAINMENT SYSTEM Infotainment Controls on the Console with Navigation Shown, Radio without Navigation Similar 1. e (Radio/AUX) . Press to open the “Now Playing” screen. 2. 7 (Seek) . Radio: Press and release to go to the previous station or channel. Press and hold to fast seek the next strongest previous station or channel. See AM-FM Radio 0 136. . USB/Bluetooth: Press to seek to the beginning of the current or previous track. Press and hold to quickly reverse through a track. Release to return to playing speed. See USB Port 0 139 or Bluetooth Audio 0 142. 3. n (Power/Volume) Knob . Press to turn the power on. . Press and hold when the system is on to turn the power off and display the time. . Press to mute/unmute the system when on. . Turn to decrease or increase the volume. 4. 6 (Seek) . Radio: Press and release to go to the next station or channel. Press and hold to fast seek the next strongest station or channel. . USB/Bluetooth: Press to seek the next track. Press and hold to fast forward through a track. Release to return to 5. l playing speed. See USB Port 0 139 or Bluetooth Audio 0 142. (Navigation) or 6 (Phone) l to access the navigation menu or press 6 to access the phone menu. 6. Primary Knob . Turn to highlight a feature. Press to activate the highlighted feature. . If equipped, move right/left or up/down to change the highlighted area on the display screen. 7. 6 (Phone) or { (Home Page) . Press 6 to access the phone menu or press { to access the Home Page. See “Home Page” later in this section. 8. 0 (Back) . Press to return to the previous display in a menu. . Press Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Home Page The Home Page is where vehicle application icons are accessed. Some applications are disabled when the vehicle is moving. When in Valet Mode, if equipped, access to the infotainment functions is disabled. See “Valet Mode,” under Vehicle Personalization 0 114. Steering Wheel Controls The infotainment steering wheel controls can be used to control the infotainment features displayed in the instrument cluster. C or B : Press to go to the next or previous favorite when listening to the radio. Press to go to the next or previous track when listening to a media source. S or T : Press to move between the Swipe left or right across the display to access the pages of icons. Managing Home Page Icons 1. Touch and hold any of the Home Page icons to enter edit mode. 2. Continue holding the icon and drag it to the desired position. 3. Release your finger to drop the icon in the desired position. 4. To move an application to another page, drag the icon to the edge of the display toward the desired page. 5. Continue dragging and dropping application icons as desired. 133 interactive displays in the instrument cluster. Press S to go back to the previous menu. y or z : Use the thumbwheel to scroll to the previous or next selection. V : Press the thumbwheel to open a menu or select a menu item. Press and hold to reset certain displays. g : Press to answer an incoming call or start voice recognition. See Bluetooth (Overview) 0 162 or Bluetooth (Pairing and Using a Phone) 0 163. c : Press to decline an incoming call or end a current call. Press to mute or unmute the infotainment system when not on a call. x + or x – : Press to increase or decrease the volume. Using the System Audio Touch the Audio icon to display the active audio source page. Examples of available sources may include AM, FM, MyMedia, USB, AUX (if equipped), and Bluetooth. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 134 INFOTAINMENT SYSTEM Phone Settings Shortcut Tray Touch the Phone icon to display the Phone main page. See Bluetooth (Overview) 0 162 or Bluetooth (Pairing and Using a Phone) 0 163. Touch the Settings icon to display the Settings menu. See Settings 0 169. The shortcut menu is on the left side of the display. It shows the Home application and four other applications. Nav If equipped, touch the Nav icon to display the navigation map. See Using the Navigation System 0 143. Wi-Fi Hotspot Touch the Wi-Fi Hotspot icon to display the Wi-Fi Hotspot information. See Settings 0 169. Users If equipped, touch the Users icon to sign in or create a new user profile, and follow the on-screen instructions. Only four user profiles can be active at one time in the vehicle. It may be necessary to remove a profile from the menu before creating or signing into an existing profile. The removed profile can be logged into at a later time. Apple CarPlay Touch the Apple CarPlay icon to activate Apple CarPlay, if equipped, after a supported device is connected. See Apple CarPlay and Android Auto 0 167. Android Auto Touch the Android Auto icon to activate Android Auto, if equipped, after a supported device is connected. See Apple CarPlay and Android Auto 0 167. Climate Touch the Climate icon to display the Climate main page. See Dual Automatic Climate Control System 0 182. Camera If equipped, touch the Camera icon to access the camera application. See Assistance Systems for Parking or Backing 0 245. Infotainment Display Features Infotainment display features show on the display when available. When a feature is unavailable, it may gray out. When a feature is touched, it may highlight. Haptic Feedback If equipped, haptic feedback is a pulse that occurs when an icon or option is touched on the display or when controls below the display are pressed. Infotainment Gestures Use the following finger gestures to control the infotainment system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Touch/Tap Drag 135 Nudge is used to move items a short distance on a list or a map. To nudge, hold and move the selected item up or down to a new location. Fling or Swipe Touch/tap is used to select an icon or option, activate an application, or change the location inside a map. Touch and Hold Drag is used to move applications on the Home Page, or to pan the map. To drag the item, it must be held and moved along the display to the new location. This can be done up, down, right, or left. This feature is only available when vehicle is parked and not in motion. Nudge Touch and hold can be used to start another gesture, or to move or delete an application. Fling or swipe is used to scroll through a list, pan the map, or change page views. Do this by placing a finger on the display then moving it rapidly up and down or right and left. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 136 INFOTAINMENT SYSTEM Spread Spread is used to zoom in on a map, certain images, or a web page. Place finger and thumb together on the display, then move them apart. Pinch Cleaning High Gloss Surfaces and Vehicle Information and Radio Displays Radio For vehicles with high gloss surfaces or vehicle displays, use a microfiber cloth to wipe surfaces. Before wiping the surface with the microfiber cloth, use a soft bristle brush to remove dirt that could scratch the surface. Then use the microfiber cloth by gently rubbing to clean. Never use window cleaners or solvents. Periodically hand wash the microfiber cloth separately, using mild soap. Do not use bleach or fabric softener. Rinse thoroughly and air dry before next use. Playing the Radio Software Updates Infotainment System Sound Menu Over-the-Air Software Updates If equipped, see “Updates” under Settings 0 169 for details on software updates. Pinch is used to zoom out on a map, certain images, or a web page. Place finger and thumb apart on the display, then move them together. AM-FM Radio Press e on the console controls or touch the Audio icon on the Home Page to display the active audio source page. Choose from the three most recently used sources listed at the left side of the display or touch the More option to display a list of available sources. Examples of available sources may include AM, FM, DAB (if equipped), MyMedia, USB, AUX (if equipped), and Bluetooth. From any of the audio source main pages, touch Sound to display the following: Equalizer : Touch to adjust Bass, Midrange, Treble, and Surround (if equipped) using the options on the infotainment display. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Fade/Balance : Touch to adjust by using the controls on the infotainment display or by tapping/ dragging the crosshair. Sound Mode (If Equipped) . Bose Centerpoint surround sound systems have four sound modes: ‐ Normal: Adjusts the audio to provide the best sound for all seating positions. ‐ Driver: Adjusts the audio to provide the best sound for the driver. ‐ Rear: Adjusts the audio to provide the best sound for the rear seat occupants. ‐ Centerpoint: Turns on Bose Centerpoint surround technology. This setting creates a surround sound from nearly any audio source: existing stereo and MP3 players. For more information on Bose Centerpoint surround technology, see your dealer. Finding a Station 137 Direct Tune Seeking a Station From the AM, FM, or DAB option, press 6 or 7 on the center stack to search for the previous or next strong station. Browsing Stations Touch the Browse option to list all available stations. Navigate up and down through all stations by scrolling the list. Touch the station you want to listen to. Touch H to save the station as a favorite. If equipped, touch Update Station List to update the active stations in your area. Access Direct Tune by touching the Tune icon on the infotainment display to bring up the keypad. Navigate through all frequencies using the arrows on the right side of the Direct Tune display. Directly enter a station using the keypad. When a new station is entered, the information about that station displays on the right side. This information will update with each new valid frequency. Touch H to save the station as a favorite. The keypad will gray out entries that do not contribute to a valid frequency and will automatically place a decimal point within the frequency number. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 138 INFOTAINMENT SYSTEM Touch (X) to delete one number at a time. Touch and hold (X) to delete all numbers. A valid AM, FM, DAB station will automatically tune to the new frequency but not close the Direct Tune display. Touch the Back icon on the infotainment display or touch z to exit out of Direct Tune. The tune arrows on the right side of the Direct Tune display will tune through the complete station or channel list one station step at a time per touch. A touch and hold advances through stations quickly. FM Categories contains names associated with the FM stations. Touch a category name to display a list of stations for that category. Touching a station from the list will tune the radio to that station. Storing Radio Station Presets Favorites show in the area at the top of the display. AM or FM : Press and hold a preset to store the current station as a favorite. Touch a saved favorite to recall a favorite station. Favorites can also be stored by touching H in a station list. This will highlight indicating that it is now saved as a favorite. The number of favorites displayed is automatically adjusted by default, but can be manually adjusted in Settings in the System tab under Favorites and then Set Number of Audio Favorites. It can also be adjusted in Settings in the Apps tab under Audio and then Set Number of Audio Favorites. From the FM display, touch Categories at the top of the Browse menu to access the categories list. The list Radio Data System (RDS) If equipped, RDS features are available for use only on FM stations that broadcast RDS information. With RDS, the radio can: . Group stations by Category (i.e., Program Type) such as Rock, Jazz, Classical, etc. . Display messages from radio stations. This system relies on receiving specific information from these stations and only works when the information is available. It is possible that a radio station could broadcast incorrect information that causes the radio features to work improperly. If this happens, contact the radio station. When information is broadcast from a RDS station, the station name or call letters display on the audio screen. Radio text supporting the currently playing broadcast may also appear. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Radio Reception Digital Audio Broadcasting (DAB) Unplug electronic devices from the accessory power outlets if there is interference or static in the radio. FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially around tall buildings or hills, causing the sound to fade in and out. If equipped, Digital Audio Broadcasting (DAB) is a universal broadcast system that indicates stations by the radio program name on the infotainment display. The DAB signal produces a constant volume and is not affected by interference from nearby frequencies. The reception quality of DAB improves if the signal is reflected by natural obstacles or buildings. If the DAB signal is unclear, reception is interrupted completely. AM Mobile Phone Usage The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. Static can also occur when things like storms and power lines interfere with radio reception. When this happens, try reducing the treble on the radio. Mobile phone usage, such as making or receiving phone calls, charging, or just having the phone on may cause static interference in the radio. Unplug the phone or turn it off if this happens. FM Multi-Band Antenna The roof antenna may be used for radio, navigation, and OnStar, depending on the equipped options. Keep clear of obstructions for clear 139 reception. If the vehicle has a sunroof, and it is open, reception can also be affected. Audio Players Avoiding Untrusted Media Devices When using media devices such as SD cards, USB devices, and mobile devices, consider the source. Untrusted media devices could contain files that affect system operation or performance. Avoid use if the content or origin cannot be trusted. USB Port Audio stored on a USB device may be listened to. The vehicle may be equipped with two USB ports in the center console under the armrest. These ports are for data and charging. There may also be two USB ports for charging only at the rear of the center console. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 140 INFOTAINMENT SYSTEM Caution To avoid vehicle damage, unplug all accessories and disconnect all accessory cables from the vehicle when not in use. Accessory cables left plugged into the vehicle, unconnected to a device, could be damaged or cause an electrical short if the unconnected end comes in contact with liquids or another power source such as the accessory power outlet. Playing from a USB A USB mass storage device can be connected to the USB port. Audio extensions supported by the USB may include: . MP3 . AAC . OGG . 3GP Gracenote When plugging in a USB device, Gracenote service builds voice tags for music. Voice tags allow artists, albums with hard to pronounce names, and nicknames to be used to play music through voice recognition, if equipped. While indexing, infotainment features may be available. My Media Library MyMedia is only available when more than one indexed device is connected. It allows access to content from all indexed media sources. MyMedia will show as an available source in the Source page. USB MP3 Player and USB Devices The USB MP3 players and USB devices connected must comply with the USB Mass Storage Class specification (USB MSC). To play a USB device: 1. Connect the USB. 2. Touch Audio from the Home Page. 3. Touch the More option and then touch the USB device. Use the following when playing an active USB source: p : Touch to play the current media source. j : Touch to pause playback of the current media source. 7: . Touch to seek the beginning of the current or previous track. . Touch and hold to reverse quickly through playback. Release to return to playing speed. Elapsed time displays. 6: . Touch to seek the next track. . Touch and hold to advance quickly through playback. Release to return to playing speed. Elapsed time displays. Shuffle : Touch the shuffle icon to play music in random order. USB Sound Menu See “Infotainment System Sound Menu” under AM-FM Radio 0 136. USB Browse Menu When a list of songs, albums, artists, or other types of media displays, the up and down arrows and A-Z appear Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM on the left side. Select A-Z to view a display that will show all letters of the alphabet and select the letter to go to. Touch the up and down arrows to move the list up and down. Touch Browse and the following may display: Playlists: 1. Touch to view the playlists stored on the USB. 2. Touch a playlist to view the list of all songs in that playlist. 3. Touch a song from the list to begin playback. Supported playlist extensions are m3u and pls. Artists: 1. Touch to view the list of artists stored on the USB. 2. Touch an artist name to view a list of all albums by the artist. 3. To select a song, touch All Songs or touch an album and then touch a song from the list. Songs: 1. Touch to display a list of all songs on the USB. 2. To begin playback, touch a song from the list. Albums: 1. Touch to view the albums on the USB. 2. Touch the album to view a list of all songs on the album. 3. Touch a song from the list to begin playback. Genres: 1. Touch to view the genres on the USB. 2. Touch a genre to view a list of artists. 3. Touch an artist to view albums by that artist. 4. Touch an album to view songs on the album. 5. Touch a song to start playback. Composers: 1. Touch to view the composers on the USB. 141 2. Touch a Composer to view a list of albums by that composer. 3. Touch an album or All Songs to view a list of songs. 4. Touch a song from the list to begin playback. Folders: 1. Touch to view the directories on the USB. 2. Touch a folder to view a list of all files. 3. Touch a file from the list to begin playback. Podcasts : Touch to view the podcasts on the connected Apple device and get a list of podcast episodes. Audiobooks: 1. Touch to view the audiobooks stored on the Apple device. 2. Touch an audiobook to get a list of chapters. 3. Touch the chapter from the list to begin playback. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 142 INFOTAINMENT SYSTEM File System and Naming File systems supported by the USB may include: . FAT32 . NTFS . HFS+ The songs, artists, albums, and genres are taken from the file’s song information and are only displayed if present. The radio displays the file name as the track name if the song information is not available. Supported Apple Devices To view supported devices, see my.cadillac.com/learn. Storing and Recalling Media Favorites To store media favorites, touch Browse to display a list of media types. Touch one of the following Browse options to save a favorite: Playlists : Touch H next to any playlist to store the playlist as a favorite. Touch a saved favorite to recall a favorite playlist. The first song in the playlist begins to play. Artists : Touch H next to any artist to store the artist as a favorite. Touch a saved favorite to recall a favorite artist. The first song in the artist list begins to play. Songs : Touch H next to any song to store the song as a favorite. Touch a saved favorite to recall a favorite song. Albums : Touch H next to any album to store the album as a favorite. Touch a saved favorite to recall a favorite album. The first song in the album list begins to play. Genres : Touch H next to any genre to store the genre as a favorite. Touch a saved favorite to recall a favorite genre. The first song of the genre begins to play. Podcasts : Touch H next to any podcast to store the podcast as a favorite. Touch a saved favorite to recall a favorite podcast. The podcast begins to play. Audiobooks : Touch H next to any audiobook to store the audiobook as a favorite. Touch a saved favorite to recall a favorite audiobook. The first chapter in the audiobook begins to play. Media Playback and Mute USB playback will be paused if the system is muted. If the steering wheel mute control is pressed again, playback will resume. If the source is changed while in mute, playback resumes and audio will unmute. Bluetooth Audio If equipped, music may be played from a paired Bluetooth device. See Bluetooth (Overview) 0 162 or Bluetooth (Pairing and Using a Phone) 0 163 for help pairing a device. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM 143 Volume and song selection may be controlled by using the infotainment controls. If Bluetooth is selected and no volume is present, check the volume setting on the mobile device. When using the Bluetooth audio source, the radio may not be able to launch specific applications on your device. Use the device to start audio playback when it is safe to do so. Navigation Music can be launched by touching Bluetooth from the recent sources list on the left of the display or by touching the More option and then touching the Bluetooth device. All devices launch audio differently. When selecting Bluetooth audio as a source, the radio may show as paused on the display. Touch r to begin playback. If equipped, launch the Nav application by touching the Nav icon on the Home Page or on the shortcut tray near the bottom of the infotainment display. To play music via Bluetooth: 1. Power on the device, and pair to connect the device. 2. Once paired, touch Audio from the Home Page, then touch Bluetooth from the recent sources list on the left of the display. Browse functionality will be provided where supported by the Bluetooth device. This media content will not be part of the MyMedia source mode. When the Nav application is launched for the first time, a product walkthrough is available. Use of the feature requires the Terms and Conditions and the Privacy statement to be confirmed. If signed into a profile, it is also suggested to enable and confirm Predictive Navigation. Bluetooth Sound Menu See “Infotainment System Sound Menu” under AM-FM Radio 0 136. Manage Bluetooth Devices From the Home Page: 1. Touch Audio. 2. Touch Devices to add or delete devices. Some smartphones support sending Bluetooth music information to display on the radio. When the radio receives this information, it will check to see if any is available and display it. For more information about supported Bluetooth features, see your dealer. Using the Navigation System Predictive Navigation (If Equipped) If Predictive Navigation is available and confirmed, this feature learns preferences by remembering where the vehicle has been. It uses the locations and navigation history to personalize routes and results. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 144 INFOTAINMENT SYSTEM Predictive Navigation may learn elements such as: . Personalized routes based on preferred streets. . Search results that provide best matches are at the top of the list. . Local map content updating. location. When the vehicle is stopped, the search bar will appear along the top of the navigation map view. When the vehicle is moving, the } (Search) icon will replace the search bar to maximize the full map view. Predictive Navigation can also be enabled or disabled at a later time by touching A (Options). While in Options, touch Settings to display the options, then Map and Navigation Settings, and then touch Predictive Navigation. See Settings 0 169. From the Nav application, set up Home and Work addresses to enable one-touch navigation. To set up Home and Work addresses, touch A and select Settings, then Map and Navigation Settings, and then choose Destination Card Preferences; Show My Places on Map should be on by default. Select and enter Home and/or Work address and save. Navigation Map View Destination Card Preferences To turn off the My Places bubbles, switch Show My Places on Map to Off. After opening the Nav application for the first time, the application will always open in full map view displaying the vehicle’s current If the vehicle’s system is not signed into a customized profile, the current location icon uses a generic symbol. Once signed into a customized profile, the current location symbol will show a customized icon. See Navigation Symbols 0 147. Map and Navigation Settings Touch A while in the map view to display options. The following may display: . 3D Heading Up, 2D Headings Up, 2D North . Show on Map . Traffic Events (available with Connected Navigation) . Settings . Edit Destination (if a route has been set) . Avoid on Route (if a route has been set) Touch Settings to view Map and Navigation Settings. The following may display: . Destination Card Preferences. See “Destination Card Preferences” previously in this section. . Map Preferences . Route Preferences . Navigation Voice Control . Traffic Preferences . Fuel Grade Preferences . Alert Preferences Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM . Manage History . Predictive Navigation: See “Predictive Navigation” previously in this section. . Map Updates . About To exit out of a list, touch z in the top right corner to return to the main map view. Make sure to set up preferences before setting a destination and starting active guidance. Map Preferences Touch to choose between basic map feature configurations: Map Colors . Auto – Touch to automatically change modes based on lighting conditions. . Day (Light) . Night (Dark) 3D Landmark (Default is On) : Touch On or Off. When turned on, the system will display all 3D Landmarks on the map depending on the zoom level. 3D Building (Default is Off) : Touch On or Off. When turned on, the system will display all of the possible 3D building shapes on the map depending on the zoom level. Show Terrain in 3D (Default is Off) : Touch On or Off. When turned on, the system will display terrain information on the map in 3D view. Auto-Zoom (Default is On) : Touch On or Off. When turned on, the system will automatically adjust the zoom level when the vehicle is approaching a turn. After the turn is completed, the system automatically brings the zoom back to the originally set level. If the vehicle is approaching a turn with the next turn occurring shortly after, the Auto-Zoom will remain on until both turns are completed. Route Preferences Touch to access the Route Preferences. The choices are: . Preferred Route – Choose from two different route options: Fastest or Eco-Friendly. 145 ‐ Fastest would be the route with the shortest drive time. ‐ Eco-Friendly would be the most fuel-efficient route. . Avoid on Current Route – Choose any of the road features to avoid while on route: ‐ Highways ‐ Unpaved Roads ‐ Ferries ‐ Carpool Lanes ‐ Toll Roads ‐ Tunnels ‐ Country Borders Navigation Voice Control Touch to access the voice control setting display. . Navigation Volume – To adjust the volume level, touch the up and down arrows. If the voice guidance prompt is being heard, volume can also be adjusted using the knob on the center stack or the volume switch on the steering wheel. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 146 INFOTAINMENT SYSTEM . Navigation Voice Prompt Level during a Call. Options available are: ‐ Full Prompt (Selected by default) ‐ Tone Only ‐ None Traffic Events This feature provides a list of events that are on the route or nearby. Touch A and then select Traffic Events. A connected navigation service plan is required. Traffic Preferences (If Equipped): While in Map View, touch A then Settings and then Map and Navigation Settings to access Traffic Preferences. When Show Traffic on Map is turned on, the feature provides an overview of the traffic flow using different coded colors. The following options are available for rerouting: . Auto Reroute to Better Route – The system will automatically reroute if the system detects there is a traffic issue ahead. . Ask Before Rerouting (Default) – If the system detects there is a traffic issue ahead, it will display a pop-up with details about the issue. Choose to reroute or cancel the alert. . Never Search for Better Route – The system will not check for a better route until one of the above options is selected. Alert Preferences Set alerts on or off during both inactive and active guidance views. The following alerts may be available: . Road Safety Alerts – Touch to display upcoming School Zone. . Traffic Camera Alerts Manage History Touch Manage History to access the History options: . Clear Recent Destinations – Touch \ to clear the recent destinations. . Clear Search History – Touch clear the search history. \ to About Touch to display software information, such as: . Telenav . Navigation Version Maps The Nav application requires a map database to run. It is stored on an SD card that is connected to the infotainment system. If the map database is not available, a missing SD card error message will be displayed. SD Card Error Messages The SD card only works for one unique vehicle. The SD card must pass authentication verification to be used for that specific vehicle. Potential error scenarios and messages include: . The SD card has initialized for the first time: “Once initialized, this SD card can only be used for navigation in this vehicle.” . The SD card is not working properly: “SD card is not functioning properly. (Error Code).” Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM 147 . The SD card is not paired with the existing system: “This SD card is not valid in this vehicle for navigation. See Owner’s Manual for more detail or visit your dealer. (Error Code).” . The SD card has been removed from the slot: “SD card has been removed. (Error Code).” Touch Continue to resume after the initialization error message. For the other messages, touch OK to return to the Home Page. Navigation Symbols This is the vehicle’s current location icon during inactive guidance mode. Once a user profile is created, the current location icon can be customized. This icon indicates the vehicle’s current location and direction on the map. Following are the most common symbols that appear in the Nav application. This indicates the vehicle’s current location and direction on the map. Smart Points of Interest (POIs) are places of interest for parking and gas stations. The traffic bar provides an overview of the route progress and any traffic and incidents along the way. As the route proceeds, the vehicle icon moves up the bar. The destination pin marks the location of the final destination. Touch the pin to view the destination address or to add it or remove it from the Favorites list. Hide the information by touching the pin one more time. It will automatically time out if no action is taken. Touch the icon to zoom out on the map and view the entire route. Touch it again to return to the previous view. View the drive time by touching the estimated time of arrival (ETA). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 148 INFOTAINMENT SYSTEM Current Location Waypoints When the vehicle is parked and not in a Navigation session, the user icon is centered on the map view, highlighting the current location. Add up to five waypoints, which are additional destinations, along the route. To add an additional stop or waypoint: . From active guidance, touch }. . Search for the destination using One-Box, Voice search, or the Quick Category icons. . Choose search results Along Route, Nearby, or Near Destination. . Choose the desired waypoint and touch Add to Trip or replace the current destination by touching New Destination. Destination Receiving Destination Directions from Different Sources Destinations can be received or transferred from different sources to the Nav application for route guidance. Some of these sources are: . Navigation from search results. . An address from the Contacts list. . An application on the smartphone such as myCadillac (subscription required) that can send destinations to the vehicle. . An application downloaded to the vehicle that can send destinations to the navigation system. Route options are not available for waypoints. Arriving at a Waypoint When arriving at a waypoint, the Drive to message can be touched to continue on to the next destination. If the vehicle passes the waypoint or gets out of the current route, the system will automatically reroute back to the current waypoint. At the same time, the system will show a Drive to icon along with the next waypoint address so the current waypoint can be skipped and guidance can resume to the next waypoint or destination. Editing a Waypoint When waypoints are added during active guidance, the system allows a stop to be deleted or the order to be changed. To edit a waypoint: 1. Touch A. 2. Touch Edit Destinations. . Modify destination order by touching and holding the arrow until it is highlighted. Drag to move the waypoint up or down the list. . Delete a waypoint by touching Y. A pop-up will appear to confirm waypoint removal. Once the request is confirmed, the system will remove the address from the destinations list. Touch z on the top right corner so the system can recalculate the route. If there is only one address in the destinations list, the system will disable the move and delete Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM functions. The system will not allow the final destination to be deleted. Map Information Road network attributes are contained in the map database for map information. Attributes include information such as street names, street addresses, and turn restrictions. A detailed area includes all major highways, service roads, and residential roads. The detailed areas include Places of Interest (POIs) such as restaurants, airports, banks, hospitals, police stations, gas stations, tourist attractions, and historical monuments. If the vehicle does not have an applicable service plan, the map database may not include data for newly constructed areas or map database corrections that are completed after production. The navigation system provides full route guidance in the detailed map areas. 149 Zoom Control Mute The zoom control display is shown on the map view. A few ways to zoom in or out are: . Touch + or – to zoom in or out on the map. . Double tap with one finger to zoom in or single tap with two fingers to zoom out on the map. . Use the index finger and thumb to zoom out by pinching and then zoom in by spreading those two fingers on the map. When in active guidance, the audio prompts while using navigation can be muted. Touch the speaker icon on the right side of the upper bar. A slash will appear on the speaker to indicate voice guidance is muted. Map Gestures and Map Scale Use the following gestures on the infotainment display to adjust the map scale and display options. . Pinch to zoom in or out. . Pan the map. . Use two fingers to tilt down and change from 2D to 3D. Tilt up to change back to 2D. . Rotate the map. See Using the System 0 133. Active Guidance View When a destination is chosen and a navigation session is active, the navigation system enters into an Active Guidance View (AGV). Map Orientation Touch the Options icon on the map to access map orientation settings. Map orientation is 3D Heading Up by default. Available settings are: . 3D Heading Up (Default): 3D map with the vehicle pointing up. In this mode, the current location icon will always head up and the map will rotate around it. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 150 INFOTAINMENT SYSTEM . 2D Heading Up: 2D map with the vehicle pointing up. In this mode, the current location icon will always head up and the map will rotate around it. . 2D North Up: 2D map with North pointing up. In this mode, the current location icon will shift as the vehicle turns left and right. Touch the icon to change the map type. The icon and label will also update accordingly. Lane Guidance Auto-Zoom The map will display the lane information for the upcoming maneuver if it is available. When approaching a maneuver, the map will automatically zoom in to show both the vehicle icon and the upcoming maneuver to give a better view of the maneuver. Once the maneuver is complete, the system will zoom back to the previous zoom level. Touch A on the map to access Settings, then touch Map Configuration to access Auto-Zoom. This feature can be enabled or disabled. Junction View When a vehicle is on the highway and approaching the exit, an image displays the lane that the vehicle must stay in to complete the next maneuver. Quick-Turn View Depending on the zoom level of the 2D Heading Up and 3D Heading Up maps, the system may automatically switch to the 2D North Up map. When in AGV , the entire route can be viewed in 2D North Up by touching the traffic bar. The map will zoom out and readjust to display the full route. When in 2D North Up Route View, the Recenter icon will appear in the middle of the display. Touch either the Recenter icon or the traffic bar again to return to the previous view, either 2D or 3D. Route List Touch the menu option next to the next turn street name to display the Route List. The Route List displays the turns and directions from the current location to the final destination. When the vehicle is approaching a turn with the next turn following in quick succession, a quick-turn list appears below the primary turn indicator. An audio prompt will announce the quick turn. Editing the Route List The Route List can be edited by choosing EDIT, which expands the list to fill the display and enters the Edit Mode. While in Edit Mode, an unwanted route segment can be Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM removed from the route by touching Y next to the segment. A pop-up appears to confirm segment removal. When the route segment has been removed, all segments are replaced by an activity indicator while the new route is recalculated. When the recalculation is complete, the activity indicator is replaced with the new route segments. Highway Exit Lists While traveling on roads with designated exits, an Exit List may be available. The Exit List displays the exit number, distance to the exit from the current vehicle position, and convenience stops that may be available, such as gas, coffee, food, and lodging. Next Maneuver Menu When in Active Guidance, the Next Maneuver Turn Arrow, Street Name, and Maneuver Distance are shown in the Next Maneuver at the top of the display overlaying the map. ETA, Distance to Destination, and Traffic Indicator are displayed in a panel pinned on the right of the display. Navigation Next Turn Maneuver Alert Touch the highway exit icon to open the Exit List. This icon displays next to the current street name near the bottom of the display. The icon only appears when on a highway with defined exits. If the Navigation application is not open when a near maneuver prompt is given, it is shown as an alert. Touch the alert to go to the main navigation view or touch z to dismiss the alert. 151 Repeat Voice Guidance This symbol indicates the next guidance maneuver. Touch it to repeat the last spoken guidance instruction. Incident Alert (If Equipped) During active guidance, if the system determines that there is an incident ahead but there is not a better route, the system will play a tone and show a Quick Notice. This will only show once per incident. Incident Reports Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 152 INFOTAINMENT SYSTEM Incident report icons, along with traffic flow data, display on the map during both active and inactive guidance. End Route Touch Cancel at the top right corner to end active guidance and return to inactive guidance. If active guidance is canceled before the destination has been reached, a pop-up option to Resume Trip will appear. Resume Trip The trip can be resumed if it was canceled by touching the Resume Trip pop-up option. If the system has determined that the destination has been reached, either because the arrival view displayed or the destination has been passed, the Resume Trip option will not appear. Favorites The navigation favorites can have contacts, addresses, or POIs that have been saved through the favorite icon on the details view. Accessing Favorites Recents To manage favorites, touch the Search icon on the Home Page. Touch Favorites to access the Favorites option. Touch G to access a list of recent destinations. In the Nav application, view the Favorites list by touching H in the search bar along the top of the Nav map view. If the search bar is closed, touch } and select H. Touch the Recenter Position arrow in the middle of the map view to reset the map to the current location. Saving Favorites Favorites can be added from a number of the system’s applications. Touch the favorites icon to save content as a favorite. Renaming Navigation Favorites 1. Touch the Settings icon on the Home Page and touch the System tab. 2. Touch Favorites to access the Manage Favorites option. 3. Touch a saved Navigation favorite to access the edit icon. Touch the edit icon to rename the favorite. 4. Touch Save to store the renamed favorite. Recenter Position Icon Last Parked Location The Last Parked Location is the last location the vehicle engine was turned off. That location is displayed in the first row of the Recents list. Touching the last Parked Location shows the Address Details view to either save the address or drive to it. The Last Parked Location can be deleted by entering the Edit display. Once the Last Parked Location is deleted, it no longer appears in the Recents list, unless the vehicle is started at that location again. Show POI Icons To see the POI categories, touch Options, then touch Show on Map. Up to eight categories of icons can be selected. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Smart POI Icons on Map Smart Parking Icons When reaching a densely populated destination and the system determines that parking may be limited, the system will attempt to display nearby parking destinations with pricing information, if available. Report an Issue Using POI Details The smart POI icons such as fuel stations and parking appear based on time, location, driver search behavior, driving conditions, and vehicle conditions. Touch a smart POI icon to open the corresponding details: . Left side: Name and address of the POI. . Right side: c + ETE (Estimated Time Enroute.) Smart Fuel Station Icons Fuel station prices are shown if available for nearby stations when the vehicle is low on fuel. In the POI details page, a POI issue can be reported if the data is not accurate or the address is incorrect. Touch Report an Issue near the bottom of the display to access the issue selection page. Touch one of the predefined issues on the selection page, then touch Send. The system will send the information for analysis. 153 destination based on what is being entered. Touch the suggested item to search. Search While in Motion with No Front Seat Passenger Present The search display will not allow changes or text input with the keyboard when the vehicle is in motion. As a result, a display showing three rows of the most commonly used categories appears. Touching the search box will activate speech recognition. Search While in Motion with Front Seat Passenger Present Touch Search on the infotainment display to open the search display. It has a search field entry box, quick category icon shortcuts, recents icon, favorites icon, and keyboard. If the system detects that the front seat passenger is present with both driver and passenger seat belts buckled, touching the search icon will display an alert message that allows the passenger to search for a destination as if the vehicle were stopped. Auto Complete Settings Enter a partial location in the field entry box on the search display. Auto complete will attempt to complete the Touch the Settings icon on the Home Page to adjust features and preferences, such as Time and Date, Search Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 154 INFOTAINMENT SYSTEM Driving Mode, Language, Valet Mode, or Radio. For setting options, see Settings 0 169. Touch the voice icon on the infotainment display to show the Voice menu. A few of the setting options change the way the navigation system displays or reacts while in use. 1. Touch the Settings icon on the Home Page. 2. Touch the scroll bar until the desired option displays. Select the desired settings to change. Confidence Threshold : Touch to change the sensitivity of the voice recognition system. Driving Mode Display If equipped, touch the Driving Mode icon on the Home Page to access the Driving Mode visualization display. From the visualization display, Driving Mode shows the current driving configuration. See “Driving Mode” in the owner’s manual. Touch to access display options: Voice Voice recognition allows for hands-free operation within the navigation, audio, phone, and weather applications. See Voice Recognition 0 156. Prompt Length : Touch to change the prompt length to Short or Long. Audio Feedback Speed : Touch to change the audio feedback speed to Slow, Medium, or Fast. Proximity Sensing : Touch to turn the sensing On and Off, or to turn sensing On for Map only. Calibrate Touchscreen : Touch to display the infotainment display Calibration Screen. Turn Display Off : Touch to turn the Display option off. Rear Camera Touch to access the rear camera options: . Guidance Lines – Touch to turn the guidance lines option On or Off. . Rear Park Assist Symbols – Touch to turn the rear park assist symbols option On or Off. . Return to Factory Settings – Touch to access options such as: ‐ Restore Vehicle ‐ Clear All Private Data ‐ Restore Radio Settings See the owner’s manual. Low Fuel Alert If the vehicle reaches a low fuel level, the system displays an alert about the low fuel condition. Touch the More Info option to view nearby gas stations and start guidance, if desired. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM receiving signals from the satellites, a symbol appears on the map screen. See Navigation Symbols 0 147. If the remaining driving distance is available from the system, this is included in the alert. Global Positioning System (GPS) The position of the vehicle is determined by using satellite signals, various vehicle signals, and map data. At times, other interference such as the satellite condition, road configuration, condition of the vehicle, and/or other circumstances can affect the navigation system's ability to determine the accurate position of the vehicle. The GPS shows the current position of the vehicle using signals sent by GPS satellites. When the vehicle is not This system might not be available or interference can occur if any of the following are true: . Signals are obstructed by tall buildings, trees, large trucks, or a tunnel. . Satellites are being repaired or improved. For more information if the GPS is not functioning properly, see Problems with Route Guidance 0 156 and If the System Needs Service 0 156. Vehicle Positioning At times, the position of the vehicle on the map could be inaccurate due to one or more of the following reasons: . The road system has changed. . The vehicle is driving on slippery road surfaces such as sand, gravel, or snow. . The vehicle is traveling on winding roads or long, straight roads. . The vehicle is approaching a tall building or a large vehicle. 155 . The surface streets run parallel to a freeway. . The vehicle has been transferred by a vehicle carrier or a ferry. . The current position calibration is set incorrectly. . The vehicle is traveling at high speed. . The vehicle changes directions more . . . . . . . . than once, or the vehicle is turning on a turn table in a parking lot. The vehicle is entering and/or exiting a parking lot, garage, or a lot with a roof. The GPS signal is not received. A roof carrier is installed on the vehicle. Tire chains have been installed. The tires are replaced or worn. The tire pressure for the tires is incorrect. This is the first navigation use after the map data is updated. The 12-volt battery has been disconnected for several days. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 156 INFOTAINMENT SYSTEM . The vehicle is driving in heavy traffic where driving is at low speeds, and the vehicle is stopped and started repeatedly. Problems with Route Guidance Inappropriate route guidance can occur under one or more of the following conditions: . The turn was not made on the road indicated. . Route guidance might not be available when using automatic rerouting for the next right or left turn. . The route might not be changed when using automatic rerouting. . There is no route guidance when turning at an intersection. . Plural names of places might be announced occasionally. . It could take a long time to operate automatic rerouting during high-speed driving. . Automatic rerouting might display a route returning to the set waypoint if heading for a destination without passing through a set waypoint. . The route prohibits the entry of a vehicle due to a regulation by time or season or any other regulation which may be given. . Some routes might not be searched. . The route to the destination might not be shown if there are new roads, if roads have recently changed, or if certain roads are not listed in the map data. See Maps 0 146. To recalibrate the vehicle's position on the map, park with the vehicle running for two to five minutes, until the vehicle position updates. Make sure the vehicle is parked in a location that is safe and has a clear view of the sky and away from large obstructions. If the System Needs Service If the navigation system needs service and the steps listed here have been followed but there are still problems, see your dealer. Map Data Updates The map data in the vehicle is the most up-to-date information available when the vehicle was produced. The map data is updated periodically, provided that the map information has changed. For questions about the operation of the navigation system or the update process, see your dealer. Database Coverage Explanations Coverage areas vary with respect to the level of map detail available for any given area. Some areas feature greater levels of detail than others. If this happens, it does not mean there is a problem with the system. As the map data is updated, more detail can become available for areas that previously had limited detail. See Map Data Updates 0 156. Voice Recognition If equipped, voice recognition allows for hands-free operation within the navigation, audio, and mobile device Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM applications. This feature can be started by pressing g on the steering wheel or by touching g on the infotainment display with the navigation application. However, not all features within these areas are supported by voice commands. Generally, only complex tasks that require multiple manual interactions to complete are supported by voice commands. For example, tasks that take more than one or two touches, such as a song or artist to play from a media device, would be supported by voice commands. Other tasks, like adjusting the volume or seeking up or down, are audio features that are easily performed by touching one or two options, and are not supported by voice commands. In general there are flexible ways to speak commands for completing the tasks. Try stating a One-Shot command, such as “Directions to address .” Another example of a One-Shot Destination Entry command is, “Directions to Place of Interest at .” If these commands do not work, try saying, “Take me to Place of Interest” or “Find address” and the system will walk you through by asking additional questions. Using Voice Recognition Voice recognition becomes available once the system has been initialized. This begins when the ignition is turned on. Initialization may take a few moments. 1. Press g on the steering wheel controls to activate voice recognition. 2. The audio system mutes and the system plays a prompt. 3. Clearly speak one of the commands described in this section. A voice recognition system prompt can be interrupted while it is playing by pressing g again. 157 For example, if the prompt seems to be taking too long to finish, to speak the command without waiting for the prompt to complete and press g again. Once voice recognition is started, both the infotainment display and instrument cluster show the selections and visual dialog content. These displays can be turned on or off in the Tutorial Mode under Settings 0 169. There are three voice prompt modes supported: . Informative verbal prompts: This type of prompt will provide more information regarding the supported actions. . Short prompts: This type of prompt will provide simple instructions about what can be stated. . Auto informative prompts: This type of prompt plays during the first few speech sessions, then automatically switches to the short prompt after some experience has been gained through using the system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 158 INFOTAINMENT SYSTEM If a command is not spoken, the voice recognition system says a help prompt. Prompts and Infotainment Displays While a voice recognition session is active, there may be corresponding options showing on the displays. A selection can be made by manually touching the option, or by speaking the number for the option to select. Manual interaction in the voice recognition session is permitted. Interaction during a voice session may be completed entirely using voice commands while some manual commands may expedite a task. If a selection is made using a manual control, the voice recognition dialog will progress in the same way as if the selection were made using a voice command. Once the system completes the task, or the session is terminated, the voice recognition dialog stops. An example of this type of manual intervention is touching an entry of a displayed number list instead of speaking the number associated with the entry desired. Canceling Voice Recognition . Touch or say “Cancel” or “Exit” to terminate the voice recognition session and show the display where voice recognition was initiated. i on the steering wheel controls to terminate the voice recognition session and show the display where voice recognition was initiated. . Press Natural Language Commands Most languages do not support natural language commands in sentence form. For those languages, use direct commands like the examples shown on the display. Helpful Hints for Speaking Commands Voice recognition can understand commands that are naturally stated in sentence form or direct commands that state the application and the task. For best results: . Listen for the prompt before saying a command or reply. . Speak the command naturally, not too fast, not too slow. . Use direct commands without a lot of extra words. For example, “Call at work,” “Play” followed by the artist or song name, or “Tune” followed by the radio station number. . Navigation destinations can be made in a single command using keywords. A few examples are: “I want directions to an address,” “I need to find a Place of Interest or (POI),” or “Find contact.” The system responds by requesting more details. For other POIs, say the name of a category like “Restaurants,” “Shopping Malls,” or “Hospitals.” . Navigating to a destination outside of the current country takes more than one command. The first command is to tell the system where the navigation will take place, such as an Address, Intersection, POI, or Contact. If Address or Intersection is selected, the second command is to say, “Change Country.” Once the system responds, Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM say the country before saying the rest of the address and/or intersection. If POI is asked for, say “Change Location,” then “Change Country.” Direct commands might be more clearly understood by the system. An example of a direct command would be “Call .” Examples of these direct commands are displayed on most of the screens while a voice session is active. If “Phone” or “Phone Commands” is spoken, the system understands that a phone call is requested and will respond with questions until enough details are gathered to make a call. If a cell phone number has been saved with a name and a place, the direct command should include both, for example “Call at work.” Using Voice Recognition for List Options When a list is displayed, a voice prompt will ask to confirm or select an option from that list. When a display contains a list, there may be options that are available but not displayed. The list on a voice recognition screen functions the same as a list on other displays. Scrolling or flinging can be used to help display other entries from the list. Manually scrolling or paging the list on a display during a voice recognition session suspends the current voice recognition event and plays the prompt “Please select manually or touch the Back icon on the infotainment display to try again.” If manual selection takes more than 15 seconds, the session terminates and prompts that it has timed out. The display returns to the display where voice recognition was initiated. The Back Command Say “Back” or touch the Back icon on the infotainment display to go to the previous display. If in voice recognition, and “Back” is spoken all the way back to the starting display, and then “Back” is spoken one more time, the voice recognition session will cancel. 159 Help Say “Help” on any voice recognition display and the help prompt for the display is played. Touching g while the help prompt is playing will terminate the prompt. Doing this will stop the help prompt so that a voice command can be used. Voice Recognition for the Radio If browsing the audio sources when voice is touched, the voice recognition commands for AM, FM, and DAB (if equipped) are available. “Switch to AM” : Switch bands to AM and tune to the last AM radio station. “Switch to FM” : Switch bands to FM and tune to the last FM radio station. “Switch to DAB” : Switch bands to DAB and tune to the last DAB radio station. “Tune to AM” : Tune to the radio station whose frequency is identified in the command (like “nine fifty”). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 160 INFOTAINMENT SYSTEM “Tune to FM” : Tune to the radio station whose frequency is identified in the command (like “one oh one point one”). “Tune to DAB” : Tune to the radio station name. Voice Recognition for Audio MyMedia The available voice recognition commands for [browsing] MyMedia are: “Play Artist” : Begin a dialog to enter a specific artist name. “Play Artist ” : Begin playback of a specific artist. “Play Album” : Begin a dialog to enter a specific album name. “Play Album ” : Begin playback of a specific album. “Play Song” : Begin a dialog to enter a specific song name. “Play Song ” : Begin playback of a specific song, if available. “Play Genre” : Begin a dialog to enter a specific genre. “Play Podcast” : Begin a dialog to enter a specific podcast. “Play Genre ” : Begin playback of a specific genre. “Play Podcast ” : Begin playback of a specific podcast. “Play Playlist” : Begin a dialog to enter a specific playlist name. “My Media” : Begin a dialog to enter the desired media content. “Play Playlist ” : Begin playback of a specific playlist. Handling Large Amounts of Media Content “Play ” : Play music from a specific device identified by name. The device name is the name displayed when the device is first selected as an audio source. It is expected that large amounts of media content will be brought into the vehicle. It may be necessary to handle large amounts of media content in a different way than smaller amounts of media. The system may limit the options of voice recognition by not allowing selection of files by voice at the highest level if the number of files exceeds the maximum limit. “Play Chapter” : Begin a dialog to enter a specific name. “Play Chapter ” : Begin playback of a specific chapter. “Play Audiobook” : Begin a dialog to enter a specific audiobook. “Play Audiobook ” : Begin playback of a specific audiobook. “Play Episode” : Begin a dialog to enter a specific name. “Play Episode ” : Begin playback of a specific episode. Changes to voice commands due to media content limits are: . Files including other individual files of all media types such as songs, audiobook chapters, podcast episodes, and videos. . Album type folders including types such as albums and audiobooks. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM There are no restrictions if the number of files and albums is fewer than 12,000. When the number of files connected to the system is between 12,000 and 24,000, the content cannot be accessed directly with one command like “Play .” The restriction is that the command “Play Song” must be spoken first; the system will then ask for the song name. The reply command would be to say the name of the song to play. Similar limits exist for album content. If there are more than 12,000 albums, but fewer than 24,000, the content cannot be accessed directly with one command like, “Play .” The command “Play Album” must first be spoken; the system will then ask for the album name. The reply would be to say the name of the album to play. Once the number of files has exceeded approximately 24,000, there is no support for accessing the songs directly through voice commands. There will still be access to the media content by using commands for playlists, artists, and genres. The access commands for playlists, artists, and genres are prohibited after the number of this type of media exceeds 12,000. The system will provide feedback the first time voice recognition is initiated if it has become apparent that any of these limits are reached during a device initializing process. Voice recognition performance will degrade to some extent based on many factors when adding large amounts of data to recognize. If so, accessing songs through playlists or artist name may work better. Voice Recognition for Navigation (If Equipped) “Navigation” : Begin a dialog to enter specific destination information. “Navigation Commands” : Begin a dialog to enter specific destination information. “Address” : Begin a dialog to enter a specific destination address, which includes the entire address consisting of the house number, street name, city, and country. 161 “Place of Interest” : Begin a dialog to enter a destination Place of Interest category or major brand name. The name must be precisely spoken. Nicknames or short names for the businesses will not likely be found. Lesser known businesses might have to be located by category, such as fast food, hotels, or banks. “Navigate to Contact” : Begin a dialog to enter a specific destination contact name. “Cancel Route” : End route guidance. “Take Me Home” : Create a route to a stored home location. Voice Recognition for the Phone “Call ” : Initiate a call to a stored contact. The command may include location if the contact has location numbers stored. “Call At Home,” “At Work,” “On Mobile,” or “On Other” : Initiate a call to a stored contact and location at home, at work, on mobile device, or on another phone. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 162 INFOTAINMENT SYSTEM “Call ” : Initiate a call to a cell phone number of seven digits, 10 digits, or three digit emergency numbers. “Pair Phone” : Begin the Bluetooth pairing process. Follow the instructions on the infotainment display. “Redial” : Initiate a call to the last dialed number. “Switch Phone” : Select a different connected cell phone for outgoing calls. “Voice Keypad” : Begin a dialog to enter special numbers like international numbers. The numbers can be entered in groups of digits with each group of digits being repeated back by the system. If the group of digits is not correct, the command “Delete” will remove the last group of digits and allow them to be re-entered. Once the entire number has been entered, the command “Call” will start dialing the number. Phone Assistant Voice Recognition Press and hold g on the steering wheel controls to pass through and launch Google phone assistant or Siri. For the low radio, whether connected by Bluetooth or phone projection, the only available voice recognition is either Siri (iPhone) or the Google Assistant (Android). Phone Bluetooth (Overview) The Bluetooth-capable system can interact with many mobile devices, allowing: . Placement and receipt of calls in a hands-free mode. . Sharing of the device’s address book or contact list with the vehicle. To minimize driver distraction, before driving, and with the vehicle parked: . Become familiar with the features of the mobile device. Organize the phone book and contact lists clearly and delete duplicate or rarely used entries. If possible, program speed dial or other shortcuts. . Review the controls and operation of the infotainment system. . Pair mobile device(s) to the vehicle. The system may not work with all mobile devices. See “Pairing” later in this section. Vehicles with a Bluetooth system can use a Bluetooth-capable mobile device with a Hands-Free Profile to make and receive phone calls. The infotainment system and voice recognition are used to control the system. The system can be used while the ignition is on or in ACC/ACCESSORY. The range of the Bluetooth system can be up to 9.1 m (30 ft). Not all mobile devices support all functions and not all mobile devices work with the Bluetooth system. See my.cadillac.com for more information about compatible mobile devices. Controls Use the controls on the center stack and the steering wheel to operate the Bluetooth system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM g : Press to answer incoming calls Bluetooth (Pairing and Using a Phone) and start voice recognition on your connected Bluetooth mobile device. Pairing Steering Wheel Controls i : Press to end a call, decline a call, or cancel an operation. Press to mute or unmute the infotainment system when not on a call. Infotainment System Controls For information about how to navigate the menu system using the infotainment controls, see Using the System 0 133. Audio System When using the Bluetooth mobile device system, sound comes through the vehicle's front audio system speakers and overrides the audio system. The volume level while on a mobile device call can be adjusted by pressing the steering wheel controls or the volume control on the center stack. The adjusted volume level remains in memory for later calls. The volume cannot be lowered beyond a certain level. A Bluetooth-enabled mobile device must be paired to the Bluetooth system and then connected to the vehicle before it can be used. See the mobile device manufacturer's user guide for Bluetooth functions before pairing the device. Pairing Information . If no mobile device has been connected, the Phone main page on the infotainment display will show the Connect Phone option. Touch this option to connect. Another way to connect is to touch the Phones tab at the top right of the display and then touch Add Phone. . A Bluetooth smartphone with music capability can be paired to the vehicle as a smartphone and a music player at the same time. . Up to 10 devices can be paired to the Bluetooth system. . The pairing process is disabled when the vehicle is moving. 163 . Pairing only needs to be completed once, unless the pairing information on the cell phone changes or the cell phone is deleted from the system. . If multiple paired cell phones are within range of the system, the system connects to the paired cell phone that is set to First to Connect. If there is no cell phone set to First to Connect, it will link to the cell phone which was used last. To link to a different paired cell phone, see “Linking to a Different Phone” later in this section. Near Field Communication (NFC) If equipped, Near Field Communication (NFC) allows compatible smartphones to be paired to the infotainment system. To begin the pairing process: 1. Refer to the smartphone’s user manual to verify it is NFC-compatible. 2. Unlock the smartphone. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 164 INFOTAINMENT SYSTEM 3. Enable both NFC and Bluetooth on the smartphone if either is disabled. The NFC icon should be in the status bar of the smartphone. 4. Hold the smartphone 2.54 cm (1 in) or less from the NFC icon W on the center stack. 5. Once pairing begins, a pop-up message with a six-digit code will appear on the smartphone and the infotainment display. 6. Select Yes on the smartphone to confirm the pairing process. A chime will sound when pairing begins. Multiple smartphones can be paired using this technology. Functionality varies by model and region. Full functionality requires compatible Bluetooth and smartphone, as well as USB connectivity for some devices. Pairing a Phone 1. Make sure Bluetooth has been enabled on the cell phone before the pairing process is started. 2. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray near the bottom of the display. 3. Touch Phones at the top of the infotainment display. There is also a Connect Phones option in the middle of the Phone display which will shortcut to the Phone List menu. 4. Touch Add Phone. 5. Select the vehicle name shown on the infotainment display from your cell phone’s Bluetooth Settings list. 6. Follow the instructions on the cell phone to confirm the six-digit code showing on the infotainment display and touch Pair. The code on the cell phone and infotainment display will need to be acknowledged for a successful pair. 7. Start the pairing process on the cell phone to be paired to the vehicle. See the cell phone manufacturer's user guide for information on this process. Once the cell phone is paired, it will show under Connected. 8. If the vehicle name does not appear on your cell phone, there are a few ways to start the pairing process over: . Turn the cell phone off and then back on. . Go back to the beginning of the Phone menus on the infotainment display and restart the pairing process. . Reset the cell phone, but this step should be done as a last effort. 9. If the cell phone prompts to accept connection or allow phone book download, touch Always Accept and Allow. The phone book may not be available if not accepted. 10. Repeat Steps 1−8 to pair additional cell phones. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM 165 First to Connect Paired Phones Secondary Phone 2. Touch Phones. If multiple paired cell phones are within range of the system, the system connects to the paired cell phone that is set as First to Connect. To enable a paired cell phone as the First to Connect phone: 1. Make sure the cell phone is turned on. 2. Touch Settings, then touch System. 3. Touch Phones to access all paired and all connected cell phones and mobile devices. 4. Touch the information icon to the right of the cell phone to open the cell phone’s settings menu. 5. Touch the First to Connect option, to enable the setting for that device. A cell phone can be enabled as a Secondary Phone by touching the information icon to the right of the paired cell phone name to open the phone settings menu. If a cell phone is enabled as a Secondary Phone, it can connect simultaneously alongside another Bluetooth mobile device. In doing so, the Secondary Phone will be labeled as Incoming Calls. This means the mobile device can only receive calls. The Address Book of a Secondary Phone will not be available and hands-free outgoing calls cannot be placed using this cell phone. Disconnecting a Connected Phone 1. Touch the Phone icon on the Home Page. 2. Touch Phones. 3. Touch the information icon next to the connected cell phone or mobile device to show the cell phone’s or mobile device’s information display. 4. Touch Disconnect. Cell phones and mobile devices can be added, removed, connected, and disconnected. A sub-menu will display whenever a request is made to add or manage cell phones and mobile devices. If needed, touch the Secondary Phone while in the Phones list to swap it into the Outgoing and Incoming role. This role makes it possible to place outgoing calls from the Contacts and Recents list. Listing All Paired and Connected Phones 1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray near the bottom of the display. Deleting a Paired Phone 1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray near the bottom of the display. 2. Touch Phones. 3. Touch the information icon next to the connected cell phone to display the cell phone’s or mobile device’s information display. 4. Touch Forget Device. Linking to a Different Phone To link to a different cell phone, the new cell phone must be in the vehicle and paired to the Bluetooth system. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 166 INFOTAINMENT SYSTEM 1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray near the bottom of the display. 2. Touch Phones. 3. Touch the new cell phone to link to from the not connected phone list. See “First to Connect Paired Phones” and “Secondary Phone” previously in this section. Switching to Handset or Handsfree Mode To switch between handset or handsfree mode: . While the active call is hands-free, touch the Handset option to switch to the handset mode. The mute icon will not be available or functional while Handset mode is active. . While the active call is on the handset, touch the Handset option to switch to the hands-free mode. Making a Call Using Contacts and Recent Calls Calls can be made through the Bluetooth system using personal cell phone contact information for all cell phones that support the Phone Book feature. Become familiar with the cell phone settings and operation. Verify the cell phone supports this feature. The Contacts menu accesses the phone book stored in the cell phone. The Recents menu accesses the recents call list from your cell phone. To make a call using the Contacts menu: 1. Touch the Phone icon on the Home Page. 2. Touch Contacts. 3. The Contacts list can be searched by using the first character. Touch A-Z on the infotainment display to scroll through the list of names. Touch the name to call. 4. Touch the desired contact number to call. To make a call using the Recents menu: 1. Touch Phone on the Home Page. 2. Touch Recents. 3. Touch the name or number to call. Making a Call Using the Keypad To make a call by dialing the numbers: 1. Touch the Phone icon on the Home Page. 2. Touch Keypad and enter a phone number. 3. Touch # on the infotainment display to start dialing the number. Searching Contacts Using the Keypad To search for contacts using the keypad: 1. Touch the Phone icon on the Home Page. 2. Touch Keypad and enter partial phone numbers or contact names using the digits on the keypad to search. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM Results will show on the right side of the display. Touch one to place a call. Accepting a Call Press g to answer, then touch Switch on the infotainment display. Accepting or Declining a Call Declining a Call When an incoming call is received, the infotainment system mutes and a ring tone is heard in the vehicle. Press i to decline, then touch Ignore on the infotainment display Accepting a Call Switching Between Calls (Call Waiting Calls Only) There are two ways to accept a call: . Press g on the steering wheel controls. . Touch Answer on the infotainment display. To switch between calls, touch Phone on the Home Page to display Call View. While in Call View, touch the call information of the call on hold to change calls. Declining a Call Three-Way Calling There are two ways to decline a call: . Press i on the steering wheel controls. . Touch Ignore on the infotainment display. Three-way calling must be supported on the Bluetooth cell phone and enabled by the wireless service carrier to work. Call Waiting Call waiting must be supported on the Bluetooth cell phone and enabled by the wireless service carrier to work. To start a three-way call while in a current call: 1. In the Call View, touch Add Call to add another call. 2. Initiate the second call by selecting from Recents, Contacts, or Keypad. 167 3. When the second call is active, touch the merge icon to conference the three-way call together. Ending a Call i on the steering wheel controls. . Touch # on the infotainment display, next to a call, to end only that call. . Press Dual Tone Multi-Frequency (DTMF) Tones The in-vehicle Bluetooth system can send numbers during a call. This is used when calling a menu-driven phone system. Use the Keypad to enter the number. Apple CarPlay and Android Auto If equipped, Android Auto and/or Apple CarPlay capability may be available through a compatible smartphone. If available, the Android Auto and Apple CarPlay icons will change from gray to color on the Home Page of the infotainment display. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 168 INFOTAINMENT SYSTEM To use Android Auto and/or Apple CarPlay: For Wired Phone Projection 1. Download the Android Auto app to your smartphone from the Google Play store. There is no app required for Apple CarPlay. 2. Connect your Android phone or Apple iPhone by using the factory-provided phone USB cable and plugging into a USB data port. For best performance, it is highly recommended to use the device’s factory-provided USB cable. Aftermarket or third-party cables may not work. 3. When the phone is first connected to activate Apple CarPlay or Android Auto, accept the terms and conditions on both the infotainment system and the phone. 4. Follow the instructions on the phone. The Android Auto and Apple CarPlay icons on the Home Page will illuminate depending on the smartphone. Android Auto and/or Apple CarPlay may automatically launch upon USB connection. If not, touch the Android Auto or Apple CarPlay icon on the Home Page to launch. Press { on the center stack to return to the Home Page. For Wireless Phone Projection (If equipped) Verify your phone is wireless compatible by visiting the Google Android Auto or Apple CarPlay support page. 1. Download the Android Auto app to your smartphone from the Google Play store. There is no app required for Apple CarPlay. 2. For first time connection, there are two ways to set up wireless projection: . Connect your Android phone or Apple iPhone by using the factory-provided phone USB cable and plugging into a USB data port. For best performance, it is highly recommended to use the device’s factory-provided USB cable. Aftermarket or third-party cables may not work. . Connecting the phone over Bluetooth. See Bluetooth (Overview) 0 162 or Bluetooth (Pairing and Using a Phone) 0 163. 3. Make sure WiFi is turned on the phone for wireless projection to work. 4. When the phone is first connected to activate Apple CarPlay or Android Auto, agree to the terms and conditions on both the infotainment system and the phone. 5. Follow the instructions on the phone. The Android Auto and Apple CarPlay icons on the Home Page will illuminate depending on the smartphone. Android Auto and/or Apple CarPlay may automatically launch upon wireless connection. If not, touch the Android Auto or Apple CarPlay icon on the Home Page to launch. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM To disconnect the phones wireless projection: 1. Select Settings from the Home Page. 2. Select Phones 3. Touch 4 next to the phone to be disconnected. 4. Turn off Apple CarPlay or Android Auto. Press { on the center stack to return to the Home Page. Features are subject to change. For further information on how to set up Android Auto and Apple CarPlay in the vehicle, see your dealer. Android Auto is provided by Google and is subject to Google’s terms and privacy policy. Apple CarPlay is provided by Apple and is subject to Apple’s terms and privacy policy. Data plan rates apply. For Android Auto support see https:// support.google.com/androidauto. For Apple CarPlay support see www.apple.com/ios/carplay/. Apple or Google may change or suspend availability at any time. Android Auto, Android, Google, Google Play, and other marks are trademarks of Google Inc.; Apple CarPlay is a trademark of Apple Inc. Press { on the center stack to exit Android Auto or Apple CarPlay. To enter back into Android Auto or Apple CarPlay, press and hold { on the center stack. Apple CarPlay and Android Auto can be disabled from the infotainment system. To do this, touch Home, Settings, and then touch the Apps tab along the top of the display. Use the On/Off toggled to turn off Apple CarPlay or Android Auto. Settings Certain settings can be managed in the Owner Center sites when an account is established, and may be modified if other users have accessed the vehicle or created accounts. This may result in changes to the security or functionality of the infotainment system. Some settings may also be transferred to a new vehicle, if equipped. 169 Refer to the User Terms and Privacy Statement for important details. To view, touch the Settings icon on the Home Page of the infotainment display. The settings menu may be organized into four categories. Select the desired category by touching System, Apps, Vehicle, or Personal. To access the personalization menus: 1. Touch Settings on the Home Page on the infotainment display. 2. Touch the desired category to display a list of available options. 3. Touch to select the desired feature setting. 4. Touch the options on the infotainment display to disable or enable a feature. 5. Touch z to go to the top level of the Settings menu. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 170 INFOTAINMENT SYSTEM System The menu may contain the following: Time / Date Use the following features to set the clock: . Automatic Time and Date: Touch Off or On to enable or disable automatic update of the time and date. When this feature is on, the time and date cannot be manually set. . Set Time: Touch to manually set the time using the controls on the infotainment display. . Set Date: Touch to manually set the date using the controls on the infotainment display. . Automatic Time Zone: If equipped, touch Off or On to disable or enable automatic update of the time zone based on vehicle location. When this feature is on, the time zone cannot be manually set. . Select Time Zone: Touch to manually set the time zone. Touch a time zone from the list. . Use 24-hour Format: Touch to specify the clock format shown. Touch Off or On to disable or enable. Language This will set the display language used on the infotainment display. It may also use the selected language for voice recognition and audio feedback. Touch Language and touch the appropriate language. Phones Touch to connect to a different cell phone or mobile device source, disconnect a cell phone or media device, or delete a cell phone or media device. Wi-Fi Networks This will show connected and available Wi-Fi networks. The infotainment system can be connected to an external protected Wi-Fi network, such as a mobile device or home hotspot, to utilize connected services. Wi-Fi Hotspot Touch and the following may display: . Wi-Fi Services: This allows devices to use the vehicle hotspot. Touch the controls on the infotainment display to disable or enable. . Wi-Fi Name: Touch to change the vehicle Wi-Fi name. . Wi-Fi Password: Touch to change the vehicle Wi-Fi password. . Connected Devices: Touch to show connected devices. . Share Hotspot Data: Touch On to allow devices to use the vehicle hotspot and its data, or touch Off to allow devices to only use the vehicle hotspot but not its data. Privacy Touch and the following may display: . Location Services: This setting enables or disables sharing of vehicle location outside the vehicle. Emergency services will not be affected when Off is selected. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM . Data Services: If equipped, this setting determines if data sharing can be used by features including Wi-Fi, Hotspot, and applications. Touch Off to disable data services. Emergency services and phone calls will not be affected when Off is selected. . Voice Recognition Sharing: This setting determines if voice commands can be shared with a cloud-based voice recognition system. Touch Off to prevent the sharing and possible recording of your voice commands with this system. This may limit the system’s ability to understand your voice commands and may disable some features. . Types: This setting lists all Android-defined as dangerous permissions currently used by the infotainment system, the number of applications that have requested this permission, and the number of applications that are allowed to use this permission. . Used By Applications: This setting lists all applications that are requested or are using Android-defined as dangerous permissions. Only requested and active permissions are shown. Display Touch and the following may display: . Mode: This adjusts the appearance of the navigation map view and any downloaded apps optimized for day or night time conditions. Set to Auto for the display to automatically adjust based on bright/dark conditions. Touch Auto, Day, or Night to adjust the display. . Calibrate Touchscreen: Touch to calibrate the infotainment display and follow the prompts. . Turn Display Off: Touch to turn the display off. Touch anywhere on the infotainment display or press any infotainment control on the center stack again to turn the display on. Sounds Touch and the following may display: . Maximum Startup Volume: This feature adjusts the maximum volume of the infotainment system 171 when you start the vehicle. To set the maximum startup volume, touch the controls on the infotainment display to increase or decrease. . Audio Cues: This feature determines if sounds play when the infotainment system starts up and shuts down. This feature can be turned off or on. . Set Audio Cue Volume: This setting controls the volume of Audio Cues played on startup and shutdown. Touch the controls on the infotainment display to increase or decrease. . Audible Touch Feedback: This setting determines if a sound plays when touching the infotainment display or radio controls. This feature can be turned off or on. Voice Touch and the following may display: . Confirm More/Less: This setting specifies how often the voice recognition system confirms commands. Touch Confirm More to Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 172 . . . . . INFOTAINMENT SYSTEM have the system check with you more often before acting on your commands. Prompt Length: This setting specifies the amount of detail the voice recognition system provides when giving you feedback. Touch Auto to have the system automatically adjust to your speech habits. Touch Informative, Short, or Auto. Audio Feedback Speed: Touch Slow, Medium, or Fast to adjust how quickly the voice recognition system speaks. Friendly Prompts: This setting adjusts the formality of voice prompts. Touch Off for shorter prompts. Touch On to hear prompts with more personality. Touch Auto to have the prompt match your command style. Tutorial Mode: Touch Off or On to provide tutorial feedback on the display. Allow Prompt Interruptions: This setting controls whether voice commands can be spoken before voice prompts finish. Turn this on to speak commands without hearing the full prompt. Speaking while the prompt is still playing will immediately stop playing the current prompt and recognize your command. Background noise may cause accidental interruptions. Touch Off or On. Favorites Touch and the following may display: . Manage Favorites: Touch to display a list of Audio, Phone, and Navigation favorites. Favorites can be moved, renamed, or deleted. To move, touch and hold the favorite, and then drag up or down to rearrange the position. . Set Number of Audio Favorites: Touch to select how many favorites pages can be viewed from the audio application. The Auto setting will automatically adjust this number based on the number of favorites you have saved. Touch Auto, 5, 10, 15, 20, 25, 30, 35, or 40. Preferences Touch the controls on the infotainment display to disable or enable the download of new updates in the background. About Touch to view the infotainment system software information. Running Applications Touch to see a complete list of applications that are currently running on the infotainment system. Return to Factory Settings Touch and the following may display: . Reset Vehicle Settings: Resets all vehicle settings for the current user. Touch Reset or Cancel. . Erase Settings and Personal Data: Erases app data settings, user profiles, and personal data including navigation and mobile device data. Touch Erase or Cancel. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM . Clear Default Applications: Resets preferred applications that have been set to open when selecting a function. No application data will be lost. Touch Clear or Cancel. Apps The menu may contain the following: Android Auto This feature allows you to interact directly with your mobile device on the infotainment display. See Apple CarPlay and Android Auto 0 167. Touch the controls on the infotainment display to disable or enable. Apple CarPlay This feature allows you to interact directly with your mobile device on the infotainment display. See Apple CarPlay and Android Auto 0 167. Touch the controls on the infotainment display to disable or enable. Audio Depending on the current audio source, different options will be available. Touch and the following may display: . Tone Settings: Touch to adjust Equalizer, Fade/Balance, or Sound Mode. See “Infotainment System Sound Menu” in AM-FM Radio 0 136. . Auto Volume: This feature adjusts the volume based on the vehicle speed. Touch Off, Low, Medium-Low, Medium, Medium-High, or High. . Bose AudioPilot Noise Compensation Technology: This feature adjusts the volume based on the noise in the vehicle and the speed. Touch Off or On. . Manage Favorites: Touch to display a list of Audio, Mobile Devices, and Navigation favorites. Favorites can be moved, renamed, or deleted. . . . . 173 To move, touch and hold the favorite, and then drag up or down to rearrange the position. Set Number of Audio Favorites: Touch to select how many favorites pages can be viewed from the audio application. The Auto setting will automatically adjust this number based on the number of favorites saved. Touch Auto, 5, 10, 15, 20, 25, 30, 35, or 40. RDS: This allows the Radio Data System (RDS) to be turned on or off. Touch Off or On. Manage Phones: Select to connect to a different phone source, disconnect a phone, or delete a phone. Reset Music Index: This allows the music index to be reset if you are having difficulty accessing all of the media content on your device. Touch Yes or No. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 174 INFOTAINMENT SYSTEM Climate Touch and the following may display: . Auto Fan Speed: This setting specifies the amount of airflow when the climate control fan setting is Auto Fan. Touch Low, Medium, or High. . Air Quality Sensor: This setting switches the system into Recirculation Mode based on the quality of the outside air. Touch Off, Low Sensitivity, or High Sensitivity. . Auto Cooled Seats: This setting automatically turns on and regulates the ventilated seats when the cabin temperature is warm. Touch the controls on the infotainment display to disable or enable. . Auto Heated Seats: This setting automatically turns on and regulates the heated seats when the cabin temperature is cool. The auto heated seats can be turned off by using the heated seat controls on the center stack. Touch the controls on the infotainment display to disable or enable. . Auto Defog: This setting automatically turns the front defogger on when the vehicle engine is started. Touch the controls on the infotainment display to disable or enable. . Auto Rear Defog: This setting automatically turns the rear defogger on when the vehicle engine is started. Touch the controls on the infotainment display to disable or enable. . Ionizer: This setting purifies the air in the interior of the vehicle.. Touch the controls on the infotainment display to disable or enable. Nav If equipped, touch and the following may display: . Destination Card Preferences . Map Preferences . . . . . . . . Route Preferences Navigation Voice Control Traffic Preferences Alert Preferences Fuel Grade Preferences Manage History Predictive Navigation (if equipped) About See Using the Navigation System 0 143. Phone Touch and the following may display: . My Number: Displays the cell phone number of the Bluetooth connected device. . Active Call View: Shows active call display when answering a call. Touch the controls on the infotainment display to disable or enable. . Privacy: Only show call alerts in the instrument cluster. Touch Off or On. . Sort Contacts: Touch to sort by first or last name. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM . Re-sync Device Contacts: Allows the device contacts to re-sync if you are having difficulty accessing all of the contacts on your cell phone. . Delete All Vehicle Contacts: Touch to delete all vehicle stored contacts. See Using the System 0 133. Vehicle This menu allows adjustment of different vehicle features. See Vehicle Personalization 0 114. Personal An “unverified user account” pop-up will display until the account information verification process has been completed on the Internet. Check your registered e-mail account for an activation e-mail to complete the verification process. Profile Picture Touch to choose or change your profile picture. Profile Identifiers Touch to have the vehicle recognize the identifier you choose. If equipped, this menu allows adjustment of different user profile settings. See “Users” in Using the System 0 133 for information on setting up user profiles. Touch Vehicle Key 1 and/or Vehicle Key 2. The menu may contain the following: Security Name Touch to have your profile secured with a Personal Identification Number (PIN). Touch to edit your user name that will be displayed in the vehicle. Vehicle Account Information Touch to view the vehicle account information and to change the account password. 175 Vehicle Account Touch to view the vehicle account information and to change the account password. Delete Profile Touch to remove the profile from the vehicle. Touch Remove or Cancel. Trademarks and License Agreements If the remote key is lost or stolen, see your dealer. Touch No or Yes. Vehicle Name Touch to edit your vehicle name. "Made for iPod," and "Made for iPhone," mean that an electronic accessory has been designed to connect specifically to iPod or iPhone, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 176 INFOTAINMENT SYSTEM and regulatory standards. Please note that the use of this accessory with iPod or iPhone may affect wireless performance. iPhone, iPod, iPod classic, iPod nano, iPod shuffle, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. DTS AVCREC Manufactured under license under U.S.Patent Nos: 5,956,674; 5,974,380; 6,487,535 & other U.S. and worldwide patents issued & pending. Blu-ray Disc, Blu-ray, Blu-ray 3D, BD-Live, BONUSVIEW, BDXL, AVCREC, and the logos are trademarks of the Blu-ray Disc Association. For DTS patents, see http:// patents.dts.com. Manufactured under license from DTS Licensing Limited. DTS, the Symbol, & DTS, and the Symbol together are registered trademarks, and DTS 2.0 Channel is a trademark of DTS, Inc. ©DTS, Inc. All Rights Reserved. Java Dolby TouchSense Technology and TouchSense System 1000 Series Licensed from Immersion Corporation. TouchSense System 1000 protected under one or more of the U.S. Patents at the following address www.immersion.com/ patent-marking.html and other patents pending. Bose Bose AudioPilot and Bose Centerpoint surround are registered trademarks of Bose Corporation in the U.S. and other countries. Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are trademarks of Dolby Laboratories. BDA “Blu-ray Disc, Blu-ray, Blu-ray 3D, BD-Live, BONUSVIEW, BDXL, AVCREC, and the logos are trademarks of the Blu-ray Disc Association.” AVCHD AVCHD and the AVCHD logo are trademarks of Panasonic Corporation and Sony Corporation. Java is a registered trademark of Oracle and/or its affiliates. Cinavia Cinavia Notice: This product uses Cinavia technology to limit the use of unauthorized copies of some commercially-produced film and videos and their soundtracks. When a prohibited use of an unauthorized copy is detected, a message will be displayed or copying will be interrupted. More information about Cinavia technology is provided at the Cinavia Online Consumer Information Center at http://www.cinavia.com. To request additional information about Cinavia by mail, send a postcard with your mailing address to: Cinavia Consumer Information Center, P.O. Box 86851, San Diego, CA, 92138, USA. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INFOTAINMENT SYSTEM This product incorporates proprietary technology under license from Verance Corporation and is protected by U.S. Patent 7,369,677 and other U.S. and worldwide patents issued and pending as well as copyright and trade secret protection for certain aspects of such technology. Cinavia is a trademark of Verance Corporation. Copyright 2004-2010 Verance Corporation. All rights reserved by Verance. Reverse engineering or disassembly is prohibited. RMVB Motors is under license. Other trademarks and trade names are those of their respective owners. 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END USER NOTICE The marks of companies displayed by this product to indicate business locations are the marks of their 181 respective owners. The use of such marks in this product does not imply any sponsorship, approval, or endorsement by such companies of this product. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 182 CLIMATE CONTROLS Climate Controls Climate Control Systems Climate Control Systems Dual Automatic Climate Control System Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . 182 The climate control buttons on the center stack and on the climate control display are used to adjust the heating, cooling, and ventilation system. Air Vents Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . 186 Maintenance Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Center Stack Climate Controls 1. 2. 3. 4. 5. 6. 7. ON/OFF (Power) AUTO (Automatic Operation) Air Delivery Mode Control Driver Temperature Controls Fan Control Passenger Temperature Controls A/C (Air Conditioning) 8. 9. 10. 11. Recirculation SYNC (Synchronized Temperature) Defrost Rear Window Defogger Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 CLIMATE CONTROLS Climate Control Display 1. Driver and Passenger Temperature Displays 2. Fan Control 3. Driver and Passenger Temperature Controls 4. Sync (Synchronized Temperature) 5. Recirculation 6. Air Delivery Mode Control 7. Auto (Automatic Operation) 8. A/C (Air Conditioning) 9. On/Off (Power) The fan speed, air delivery mode, air conditioning, driver and passenger temperatures, recirculation, and Sync settings can be controlled by touching CLIMATE icon on the infotainment Home Page or the climate button in the application tray. A selection can then be made on the front climate control page displayed. See the infotainment manual. 183 Climate Control Influence on Fuel Economy The climate control system depends on other vehicle systems for heat and power input. Certain climate control settings can lead to higher fuel usage. The following climate control settings use more fuel: . MAX air conditioning mode . Defrost mode . Extreme temperature settings, such as 15° C (60° F) or 32° C (90° F) . High fan speed settings To help reduce fuel usage: . Use the full automatic control as Climate Control Status Display The climate control status display appears briefly when the center stack climate controls are adjusted. described under “Automatic Operation.” . Select a temperature setting that is higher in hot weather and lower in cold weather. . Turn off the air conditioning when it is not needed. . Only use defrost to clear the windows. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 184 CLIMATE CONTROLS Automatic Operation The system automatically controls the following four functions to heat or cool the vehicle to the desired temperature: . Fan Speed . Air Delivery Mode . Air Conditioning . Recirculation When the AUTO indicator light is lit, all four functions are operating automatically. Each function can be manually set and the selected setting will be shown. This cancels full automatic operation and the AUTO indicator light turns off. Functions that are not manually set will continue to be automatically controlled, although the AUTO indicator light will not be lit. To place the system in automatic mode: 1. Press AUTO. 2. Set the driver and passenger temperature. To find your comfort setting, start with 22 °C (72 °F) and allow the system time to stabilize. Then adjust the temperature as needed for best comfort. 9 : Press button up or down to increase or decrease the fan speed. Press AUTO to return to automatic operation. To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather. Driver and Passenger Temperature Control : The temperature can be adjusted separately for the driver and passenger. The recirculation light will not come on when automatically controlled. Press @ to manually select recirculation; press it again to select outside air. Press button up or down to increase or decrease the driver or passenger temperature setting. Do not cover the solar sensor on the top of the instrument panel near the windshield. This sensor regulates air temperature based on sun load. See “Sensors” later in this section. Manual Operation On/Off : Press to turn the climate control system on or off. When the system is off, outside air will be prevented from entering the vehicle. When the system is on or a button is pressed, the climate control system will turn on and deliver airflow per the current setting. The driver side or passenger side temperature display shows the temperature setting increasing or decreasing. SYNC : Press to link the passenger and rear climate temperature settings, if equipped, to the driver setting. The SYNC indicator light will turn on. When the passenger or rear climate temperature settings are adjusted, the SYNC indicator light is off. Air Delivery Mode Control : Press Y, [ , or z to change the direction of the airflow. An indicator light comes Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 CLIMATE CONTROLS on in the selected mode button. Multiple buttons can be selected simultaneously. conditioning compressor also comes on, unless the outside temperature is below freezing. Changing the mode cancels the automatic operation and the system goes into manual mode. Press AUTO to return to automatic operation. Do not drive the vehicle until all windows are clear. z : This mode clears the windows of fog or moisture. Air is directed to the windshield and side window vents. The system automatically forces outside air into the vehicle and the air conditioning compressor will run, unless the outside temperature is close to freezing. Y : Air is directed to the instrument panel outlets. [ : Air is directed to the floor outlets, with some to the windshield, side window outlets, outboard panel outlets, and second row floor outlets. 0 : Press to clear the windshield of fog or frost more quickly. Air is directed to the windshield and the side window outlets. The air See Air Vents 0 186. A/C : Press to turn the air conditioning system on or off. An indicator light comes on to show that the air conditioning is enabled. If the fan is turned off, the air conditioner will not run. The A/C light will stay on even if the outside temperatures are below freezing. @ : Press to turn on recirculation. An indicator light comes on. Air is recirculated to quickly cool the inside of the vehicle. It can also be used to help reduce outside air and odors that enter the vehicle. The air conditioning compressor also comes on when this mode is activated. Rear Window Defogger The rear window defogger uses a warming grid to remove fog from the rear window. 185 K : Press to turn the rear window defogger on or off. An indicator light on the button comes on to show that the rear window defogger is on. The rear window defogger only works when the ignition is on. The defogger turns off if the ignition is turned to off or ACC/ACCESSORY. Caution Using a razor blade or sharp object to clear the inside rear window can damage the rear window defogger. Repairs would not be covered by the vehicle warranty. Do not clear the inside rear window with sharp objects. Heated Mirror : If equipped with heated outside mirrors, the mirrors heat to help clear fog or frost from the surface of the mirror when the rear window defog button is pressed. See Heated Mirrors 0 24. Remote Start Climate Control Operation : If equipped with remote start, the climate control system may run when the vehicle is started remotely. The rear defog may come on Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 186 CLIMATE CONTROLS during remote start based on cold ambient conditions. The rear defog indicator light does not come on during a remote start. Sensors If equipped, the heated seats will turn on if it is cold outside or the ventilated seats will turn on if it is hot outside. The heated and ventilated seat indicator lights may not come on during a remote start. If equipped, the heated steering wheel will come on in a remote start if it is cold outside. The heated steering wheel indicator light may not come on. Ionizer : If equipped with an ionizer, this feature helps to clean the air inside the vehicle and remove contaminants such as pollen, odors, and dust. If the climate control system is on and the ionizer is enabled, the ionizer status indicator will be lit on the climate control display. To turn the ionizer on or off, see Climate and Air Quality under Vehicle Personalization 0 114. The climate control system uses the information from these sensors to maintain comfort settings by adjusting the outlet temperature, fan speed, and air delivery mode. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be used as needed to maintain cool outlet temperatures. Air Vents The solar sensor, located in the defrost grille in the middle of the instrument panel, monitors the solar heat. Do not cover the solar sensor or the system will not work properly. There is also an exterior temperature sensor behind the front grille. This sensor reads the outside air temperature and helps maintain the temperature inside the vehicle. Any cover on the front of the vehicle, could cause a false reading in the displayed temperature. Adjustable air vents are in the center and on the sides of the instrument panel, and on the rear of the center console storage. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 CLIMATE CONTROLS 187 Move the slider knobs to change the direction of or to close off the airflow. Maintenance Service Operation Tips . Clear away any ice, snow, or leaves from air inlets at the base of the windshield that could block the flow of air into the vehicle. . Clear snow off the hood to improve visibility and help decrease moisture drawn into the vehicle. . Keep the path under the front seats clear of objects to help circulate the air inside of the vehicle more effectively. . Use of non-GM approved hood deflectors can adversely affect the performance of the system. Check with your dealer before adding equipment to the outside of the vehicle. . Do not attach any devices to the air vent slats. This restricts airflow and may cause damage to the air vents. Passenger Compartment Air Filter All vehicles have a label underhood that identifies the refrigerant used in the vehicle. The refrigerant system should only be serviced by trained and certified technicians. The air conditioning evaporator should never be repaired or replaced by one from a salvage vehicle. It should only be replaced by a new evaporator to ensure proper and safe operation. The filter reduces dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance. See Maintenance Schedule 0 329. See your dealer regarding replacement of the filter. During service, all refrigerants should be reclaimed with proper equipment. Venting refrigerants directly to the atmosphere is harmful to the environment and may also create unsafe conditions based on inhalation, combustion, frostbite, or other health-based concerns. The air conditioning system requires periodic maintenance. See Maintenance Schedule 0 329. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 188 DRIVING AND OPERATING Driving and Operating Driving Information Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . . . . Distracted Driving . . . . . . . . . . . . . . . . Defensive Driving . . . . . . . . . . . . . . . . Control of a Vehicle . . . . . . . . . . . . . . Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . Off-Road Recovery . . . . . . . . . . . . . . . . Loss of Control . . . . . . . . . . . . . . . . . . . Track Events and Competitive Driving (V-Series Only) . . . . . . . . . Driving on Wet Roads . . . . . . . . . . . Hill and Mountain Roads . . . . . . . . Winter Driving . . . . . . . . . . . . . . . . . . . . If the Vehicle Is Stuck . . . . . . . . . . . Vehicle Load Limits . . . . . . . . . . . . . . 189 189 190 190 190 190 191 192 192 197 198 198 199 200 Starting and Operating New Vehicle Break-In . . . . . . . . . . . . Composite Materials . . . . . . . . . . . . . Ignition Positions . . . . . . . . . . . . . . . . Starting the Engine . . . . . . . . . . . . . . Stop/Start System . . . . . . . . . . . . . . . . Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . 203 203 204 206 206 207 Shifting Into Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . Shifting Into Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . Shifting out of Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . Shifting out of Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . Extended Parking . . . . . . . . . . . . . . . . . 208 209 209 210 210 210 Engine Exhaust Engine Exhaust . . . . . . . . . . . . . . . . . . . 211 Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Automatic Transmission Automatic Transmission (Mechanical Shifter) . . . . . . . . . . . . Automatic Transmission (Electronic Shifter) . . . . . . . . . . . . . Manual Mode (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Mode (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 211 213 218 219 Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . 220 Brakes Electric Brake Boost . . . . . . . . . . . . . . Antilock Brake System (ABS) . . . . Electric Parking Brake . . . . . . . . . . . . Brake Assist . . . . . . . . . . . . . . . . . . . . . . . Hill Start Assist (HSA) . . . . . . . . . . . Automatic Vehicle Hold (AVH) . . . . . . . . . . . . . . . . . . . . . 220 220 221 222 222 223 Ride Control Systems Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . Driver Mode Control . . . . . . . . . . . . . Competitive Driving Mode . . . . . . . Limited-Slip Differential . . . . . . . . . 223 225 230 232 Cruise Control Cruise Control . . . . . . . . . . . . . . . . . . . . 232 Adaptive Cruise Control (Advanced) . . . . . . . . . . . . . . . . . . . . . . 235 Driver Assistance Systems Driver Assistance Systems . . . . . . . Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . Rear Pedestrian Alert . . . . . . . . . . . . Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 244 245 250 251 251 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . Side Blind Zone Alert (SBZA) . . . . Lane Change Alert (LCA) . . . . . . . . Lane Keep Assist (LKA) . . . . . . . . . . 254 255 257 257 259 Fuel Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . Recommended Fuel (LSY 2.0L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . Recommended Fuel (L3B 2.7L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . Prohibited Fuels . . . . . . . . . . . . . . . . . . Fuel Additives . . . . . . . . . . . . . . . . . . . . Filling the Tank . . . . . . . . . . . . . . . . . . Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . . . . . . 261 261 262 262 262 262 264 Trailer Towing General Towing Information . . . . 265 Conversions and Add-Ons Add-On Electrical Equipment . . . 265 Driving Information Driving for Better Fuel Economy Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible: . Set the climate controls to the desired temperature after the engine is started, or turn them off when not required. . Avoid fast starts and accelerate smoothly. . Brake gradually and avoid abrupt stops. . Avoid idling the engine for long periods of time. . When road and weather conditions are appropriate, use cruise control. . Always follow posted speed limits or drive more slowly when conditions require. . Keep vehicle tires properly inflated. . Combine several trips into a single trip. 189 . Replace the vehicle's tires with the same TPC Spec number molded into the tire's sidewall near the size. . Follow recommended scheduled maintenance. Distracted Driving Distraction comes in many forms and can take your focus from the task of driving. Exercise good judgment and do not let other activities divert your attention away from the road. Many local governments have enacted laws regarding driver distraction. Become familiar with the local laws in your area. To avoid distracted driving, keep your eyes on the road, keep your hands on the steering wheel, and focus your attention on driving. . Do not use a phone in demanding driving situations. Use a hands-free method to place or receive necessary phone calls. . Watch the road. Do not read, take notes, or look up information on phones or other electronic devices. . Designate a front seat passenger to handle potential distractions. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 190 DRIVING AND OPERATING . Become familiar with vehicle . . . . features before driving, such as programming favorite radio stations and adjusting climate control and seat settings. Program all trip information into any navigation device prior to driving. Wait until the vehicle is parked to retrieve items that have fallen to the floor. Stop or park the vehicle to tend to children. Keep pets in an appropriate carrier or restraint. Avoid stressful conversations while driving, whether with a passenger or on a cell phone. { Warning Taking your eyes off the road too long or too often could cause a crash resulting in injury or death. Focus your attention on driving. Refer to the infotainment section for more information on using that system and the navigation system, if equipped, including pairing and using a cell phone. Defensive Driving Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear the seat belt. See Seat Belts 0 39. . Assume that other road users (pedestrians, bicyclists, and other drivers) are going to be careless and make mistakes. Anticipate what they may do and be ready. . Allow enough following distance between you and the driver in front of you. . Focus on the task of driving. Control of a Vehicle Braking, steering, and accelerating are important factors in helping to control a vehicle while driving. Braking Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three-quarters of a second. In that time, a vehicle moving at 100 km/h (60 mph) travels 20 m (66 ft), which could be a lot of distance in an emergency. Helpful braking tips to keep in mind include: . Keep enough distance between you and the vehicle in front of you. . Avoid needless heavy braking. . Keep pace with traffic. If the engine ever stops or a brake fault occurs, the brakes may lose power assist. More effort will be required to stop the vehicle and it can take longer to stop. Steering Caution To avoid damage to the steering system, do not drive over curbs, parking barriers, or similar objects at speeds greater than 3 km/h (1 mph). Use care when driving over other objects such as lane dividers (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Caution (Continued) and speed bumps. Damage caused by misuse of the vehicle is not covered by the vehicle warranty. If the steering assist is used for an extended period of time while the vehicle is not moving, power assist may be reduced. If the steering wheel is turned until it reaches the end of its travel and is held against that position for an extended period of time, power steering assist may be reduced. 191 . Holding both sides of the steering wheel allows you to turn 180 degrees without removing a hand. . The Antilock Brake System (ABS) allows steering while braking. Off-Road Recovery Normal use of the power steering assist should return when the system cools down. See your dealer if there is a problem. Curve Tips . Take curves at a reasonable speed. . Reduce speed before entering a Electric Power Steering The vehicle has electric power steering. It does not have power steering fluid. Regular maintenance is not required. If power steering assist is lost due to a system malfunction, the vehicle can be steered, but may require increased effort. curve. . Maintain a reasonable steady speed through the curve. . Wait until the vehicle is out of the curve before accelerating gently into the straightaway. Steering in Emergencies . There are some situations when steering around a problem may be more effective than braking. The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. Follow these tips: 1. Ease off the accelerator and then, if there is nothing in the way, steer the vehicle so that it straddles the edge of the pavement. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 192 DRIVING AND OPERATING 2. Turn the steering wheel about one-eighth of a turn, until the right front tire contacts the pavement edge. 3. Turn the steering wheel to go straight down the roadway. Loss of Control Skidding There are three types of skids that correspond to the vehicle's three control systems: . Braking Skid — wheels are not rolling. . Steering or Cornering Skid — too much speed or steering in a curve causes tires to slip and lose cornering force. . Acceleration Skid — too much throttle causes the driving wheels to spin. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not overdriving those conditions. But skids are always possible. If the vehicle starts to slide, follow these suggestions: . Ease your foot off the accelerator pedal and steer the way you want the vehicle to go. The vehicle may straighten out. Be ready for a second skid if it occurs. . Slow down and adjust your driving according to weather conditions. Stopping distance can be longer and vehicle control can be affected when traction is reduced by water, snow, ice, gravel, or other material on the road. Learn to recognize warning clues — such as enough water, ice, or packed snow on the road to make a mirrored surface — and slow down when you have any doubt. . Try to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by shifting to a lower gear. Any sudden changes could cause the tires to slide. Remember: Antilock brakes help avoid only the braking skid. Track Events and Competitive Driving (V-Series Only) { Danger High-performance features are intended for use only on closed tracks by experienced and qualified drivers and should not be used on public roads. High-speed driving, aggressive cornering, hard braking, and other high-performance driving can be dangerous. Improper driver inputs for the conditions may result in loss of control of the vehicle, which could injure or kill you or others. Always drive safely. Track events and competitive driving may affect the vehicle warranty. See the warranty manual before using the vehicle for competitive driving. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING { Warning Prior to each track event and again before returning to public roads, tighten the wheel nuts with a torque wrench to the proper torque specification. Wheel nuts that are improperly or incorrectly tightened can cause the wheels to become loose or come off, resulting in a crash. See Capacities and Specifications 0 342 for wheel nut torque specifications. Caution Low oil levels can damage the engine. If using the vehicle for competitive driving, the engine may use more oil than it would with normal use. Check the oil level often during competitive driving. Competitive Driving Mode can be selected. See Driver Mode Control 0 225. 193 Axle Fluid Engine Oil Axles must have 2414 km (1500 mi) before being used in track driving. Check the oil level often during track events and competitive driving and keep the oil level at or near the upper mark. The rear axle fluid temperatures may be higher than when driving in severe conditions. Drain and refill with new fluid after the first racing or competitive driving event, and then after every 24 hours of racing or competitive driving. See Recommended Fluids and Lubricants 0 337. Caution During a first time track or racing event, high axle temperatures can occur. Damage could be caused to the axle and would not be covered by the vehicle warranty. Do not drive as long or as fast the first time the vehicle is driven on the track or raced. Fuel Use premium unleaded gasoline with a posted octane rating of 98 RON at a track event. Unleaded gasoline with a posted octane rating of 95 RON may be used, but performance will be degraded. Automatic Transmission Fluid Have the transmission fluid set to the track specific oil level prior to track usage. Transmission fluid should be changed after every 15 hours of track usage. Any transmission level set or change should be performed at your dealer. . The axle lubricant should be Brakes replaced with new lubricant. . Additional cooling capacity is also required for continuous competitive driving. Brake cooling can be improved if the front brake disc splash shield and front tire deflector are removed. Removing the shield will require that the suspension bushings and wheel Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 194 DRIVING AND OPERATING speed sensor wires visible to the brake disc be protected with insulated thermal wrapping. Caution Removing the splash shield can degrade wet braking performance, as well as introduce brake pedal pulsation, due to brake disc exposure to road debris. Only remove the front brake disc splash shield and front tire deflector when driving in track events. Brake Pad Wear Sensors (V-Series Only) If equipped, the brake pad wear sensors need to be removed from the brake calipers prior to any track or racing event. The original sensors can be reinstalled if significant brake pad wear is not observed. The sensor should not extend beyond the brake pad surface at the rotor contact. If this condition is observed, the brake pad life system needs to be disabled until a new set of brake pads and sensors are installed and the system reset. Brake Fluid . Before racing, replace existing brake fluid with a qualified racing brake fluid from a sealed container. Brake fluid with a dry boiling point >279 °C (534 °F) is qualified. If racing brake fluid is used, replace it with GM approved brake fluid before driving on public roads. See Recommended Fluids and Lubricants 0 337. . Do not use silicone-based fluids. If racing brake fluid is in the vehicle and the age of the brake fluid is over a month old or unknown, replace the brake fluid between racing/closed track driving. Caution Failure to change the brake fluid and transfer case fluid after any performance or race track driving could result in damage not covered by the vehicle warranty. Have the brake fluid and transfer case fluid changed by your dealer after any (Continued) Caution (Continued) performance or race track driving. See Recommended Fluids and Lubricants 0 337. Brake Burnishing Performance/racing brake pads are required prior to racing or closed track driving. Vehicles with option code JE2 have performance brake pads. For vehicles equipped with front Brembo brake systems: New brake pads must be burnished before racing or other competitive driving. These procedures are specific to the V-Series with performance brake linings package. This procedure should not be performed on other models as damage may result. Caution Performing the brake burnish procedure on a base brake system can result in brake damage. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Caution The new vehicle break-in period should be completed before performing the brake burnish procedure, otherwise damage may occur to the powertrain/engine. See New Vehicle Break-In 0 203. Caution Brake fade will occur during this track burnish procedure and can cause brake pedal travel and force to increase. This could extend stopping distance until the brakes are fully burnished. When this procedure is performed as instructed, it will not damage the brakes. The brake pads will smoke and produce an odor. The braking force and pedal travel may increase. After the procedure, the brake pads may appear white at the rotor contact. Perform this procedure only on dry pavement, in a safe manner, and in compliance with all local and state ordinances/laws regarding motor vehicle operation. Brake Burnish Procedure 1. Apply the brakes 25 times starting at 100 km/h (60 mph) to 50 km/h (30 mph) while decelerating at 0.4 g. This is a medium brake application. Drive for at least 1 km (0.6 mi) between applying the brakes. This first step may be skipped if there are more than 320 km (200 mi) on the brake pads. 2. Apply the brakes 25 times starting at 100 km/h (60 mph) to 25 km/h (15 mph) while decelerating at 0.8 g. This is a hard brake application, without activating the Antilock Brake System (ABS). Drive for at least 1 km (0.6 mi) between applications. 3. Cool down: Drive at 100 km/h (60 mph) for approximately 15 km (10 mi) without using the brakes. 4. Apply the brakes 25 times from 100 km/h (60 mph) to 50 km/h (30 mph) while decelerating at 195 0.4 g. This is a medium brake application. Drive for at least 1 km (0.6 mi) between applications. As with all high performance brake systems, some amount of brake squeal is normal. Brake Fade Warning Assist The Brake Fade Warning Assist system monitors the performance of the brake system. If the system detects brake fade, or if the brake fluid is near the boiling point, the driver will be alerted. Stage 1 : The Driver Information Center (DIC) displays a “Reduce Braking to Avoid Overheating” message and brake pedal effort and travel is increased. When the message displays, the driver should decrease brake pedal pressure. Stage 2 : The Driver Information Center (DIC) displays a “Brakes Overheated Service Now” message that the brake fluid temperature is excessive and is about to boil. The system increases brake pedal effort and travel, and will also limit vehicle speed. The driver should immediately Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 196 DRIVING AND OPERATING start a cool down lap if on the track. If this message displays, take the vehicle to be serviced at your dealer. Wheel Alignment Wheel alignment suggested specs for track use: . Front: -2.0 deg camber, 0.2 deg total toe . Rear: -1.7 deg camber, 0.2 deg total toe Vehicles Equipped with the Original Equipment Tires Follow the requirements and recommendations for tire inflation pressures while driving on various types of tracks/courses. This helps to achieve a well-balanced vehicle and enhance tire traction performance. Use good judgment to determine the appropriate tire inflation pressure and speeds for the track/course configuration and environmental conditions. Contact the tire manufacturer if further assistance is needed. To maximize tire life, drive 800 km (500 mi) prior to racetrack driving or complete the minimum track running that will increase the tire pressures by 35 kPa (5 psi). After this, immediately let the tires cool to cold pressures. Tire Inflation Pressure Guidelines Tire inflation pressures affect vehicle handling and tire life, and should be adjusted for various types of tracks/ courses. Inspect the tires prior to every track/ course session. Track/course driving will reduce the tire tread life. Driving and Operating { Warning Operating the vehicle at high speeds can be dangerous. Improper tire inflation pressure can put additional strain on the tires and can cause a sudden failure. Make sure the tires are in excellent condition, and use the correct cold tire inflation pressure for the vehicle load and track/course. { Warning Tracks/courses put high loads on tires operating at high speed, which can lead to tire failure if not inflated properly. Always limit vehicle cargo to the driver plus one passenger with no additional cargo. { Warning Track/course loads wear tires both on the tread and internal to the tire. When driven in track/course conditions, even if tread is not worn down to the treadwear indicator, tires must be replaced after the equivalent of two tanks of fuel or approximately 160 km (100 mi). Tire Inflation Pressure for Tracks with Sustained High-Speed Operation on Banked Turns (e.g., Daytona International Speedway, Indianapolis Motor Speedway, or similar) Inflate tires to a minimum of 300 kPa (44 psi) when cold. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Do not reduce tire inflation pressure when hot. Tire Inflation Pressure for Tracks with Combined High-Speed and High-Load Corners (e.g., Nurburgring Nordschliefe, Spa Francorchamps, or similar) Inflate tires to a minimum of 260 kPa (38 psi) when cold. Limit vehicle speed to below 230 km/h (143 mph) until 290 kPa (42 psi) is reached. For continuous track use, hot tire inflation pressure may be adjusted to a minimum of 290 kPa (42 psi). Tire Inflation Pressure for Road/ Street Courses (e.g., Virginia International Raceway, Road Atlanta, or similar) Inflate tires to a minimum of 240 kPa (35 psi) cold. For continuous road/street course use, hot tire inflation pressure may be adjusted to a minimum of 270 kPa (39 psi). Return the tires to the recommended cold tire inflation pressure when high-speed driving has ended. See Vehicle Load Limits 0 200 and Tire Pressure 0 303. Driving on Wet Roads Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and deep-standing or flowing water. { Warning Wet brakes can cause crashes. They might not work as well in a quick stop and could cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work normally. Flowing or rushing water creates strong forces. Driving through flowing water could cause the (Continued) 197 Warning (Continued) vehicle to be carried away. If this happens, you and other vehicle occupants could drown. Do not ignore police warnings and be very cautious about trying to drive through flowing water. Hydroplaning Hydroplaning is dangerous. Water can build up under the vehicle's tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When the vehicle is hydroplaning, it has little or no contact with the road. There is no hard and fast rule about hydroplaning. The best advice is to slow down when the road is wet. Other Rainy Weather Tips Besides slowing down, other wet weather driving tips include: . Allow extra following distance. . Pass with caution. . Keep windshield wiping equipment in good shape. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 198 DRIVING AND OPERATING . Keep the windshield washer fluid reservoir filled. . Have good tires with proper tread depth. See Tires 0 300. . Turn off cruise control. Hill and Mountain Roads Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips include: . Keep the vehicle serviced and in good shape. . Check all fluid levels and brakes, tires, cooling system, and transmission. . Shift to a lower gear when going down steep or long hills. { Warning Using the brakes to slow the vehicle on a long downhill slope can cause brake overheating, can reduce brake performance, and could result in a loss of braking. Shift the transmission to a lower gear to let the engine assist the brakes on a steep downhill slope. { Warning Coasting downhill in N (Neutral) or with the ignition off is dangerous. This can cause overheating of the brakes and loss of steering assist. Always have the engine running and the vehicle in gear. . Drive at speeds that keep the vehicle in its own lane. Do not swing wide or cross the center line. . Be alert on top of hills; something could be in your lane (e.g., stalled car, crash). . Pay attention to special road signs (e.g., falling rocks area, winding roads, long grades, passing or no-passing zones) and take appropriate action. Winter Driving Driving on Snow or Ice Snow or ice between the tires and the road creates less traction or grip, so drive carefully. Wet ice can occur at about 0 °C (32 °F) when freezing rain begins to fall. Avoid driving on wet ice or in freezing rain until roads can be treated. For Slippery Road Driving: . Accelerate gently. Accelerating too quickly causes the wheels to spin and makes the surface under the tires slick. . Turn on Traction Control. See Traction Control/Electronic Stability Control 0 223. . Antilock Brake System (ABS) improves vehicle stability during hard stops, but the brakes should be applied sooner than when on dry pavement. See Antilock Brake System (ABS) 0 220. . Allow greater following distance and watch for slippery spots. Icy patches can occur on otherwise clear roads in shaded areas. The surface of a curve or an overpass can remain icy when the surrounding roads are clear. Avoid sudden steering maneuvers and braking while on ice. . Turn off cruise control. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Blizzard Conditions Stop the vehicle in a safe place and signal for help. Stay with the vehicle unless there is help nearby. To get help and keep everyone in the vehicle safe: . Turn on the hazard warning flashers. . Tie a red cloth to an outside mirror. { Warning Snow can trap engine exhaust under the vehicle. This may cause exhaust gases to get inside. Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. It can cause unconsciousness and even death. If the vehicle is stuck in snow: . Clear snow from the base of the vehicle, especially any blocking the exhaust pipe. . Open a window about 5 cm (2 in) on the vehicle side that is away from the wind, to bring in fresh air. (Continued) Warning (Continued) . Fully open the air outlets on or under the instrument panel. . Adjust the climate control system to circulate the air inside the vehicle and set the fan speed to the highest setting. See “Climate Control Systems.” For more information about CO, see Engine Exhaust 0 211. To save fuel, run the engine for short periods to warm the vehicle and then shut the engine off and partially close the window. Moving about to keep warm also helps. If it takes time for help to arrive, when running the engine, push the accelerator pedal slightly so the engine runs faster than the idle speed. This keeps the battery charged to restart the vehicle and to signal for help with the headlamps. Do this as little as possible, to save fuel. 199 If the Vehicle Is Stuck Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. If stuck too severely for the traction system to free the vehicle, turn the traction system off and use the rocking method. See Traction Control/ Electronic Stability Control 0 223. { Warning If the vehicle's tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as possible and avoid going above 56 km/h (35 mph). Rocking the Vehicle to Get it Out Turn the steering wheel left and right to clear the area around the front wheels. Turn off any traction system. Shift back and forth between R (Reverse) and a low forward gear, spinning the wheels as little as possible. To prevent transmission Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 200 DRIVING AND OPERATING wear, wait until the wheels stop spinning before shifting gears. Release the accelerator pedal while shifting, and press lightly on the accelerator pedal when the transmission is in gear. Slowly spinning the wheels in the forward and reverse directions causes a rocking motion that could free the vehicle. If that does not get the vehicle out after a few tries, it might need to be towed out. If the vehicle does need to be towed out, see Towing the Vehicle 0 317. Vehicle Load Limits It is very important to know how much weight the vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo, and all nonfactory-installed options. Two labels on the vehicle may show how much weight it may properly carry: the Tire and Loading Information label and the Certification label. { Warning Do not load the vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). This can cause systems to break and change the way the vehicle handles. This could cause loss of control and a crash. Overloading can also reduce stopping performance, damage the tires, and shorten the life of the vehicle. Tire and Loading Information Label Label Example A vehicle-specific Tire and Loading Information label is attached to the vehicle's center pillar (B-pillar). The Tire and Loading Information label shows the number of occupant seating positions (1), and the maximum vehicle capacity weight (2) in kilograms and pounds. The Tire and Loading Information label also shows the tire size of the original equipment tires (3) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING and the recommended cold tire inflation pressures (4). For more information on tires and inflation see Tires 0 300 and Tire Pressure 0 303. There is also important loading information on the Certification label. It may show the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Rating (GAWR) for the front and rear axle. See “Certification Label” later in this section. “Steps for Determining Correct Load Limit– 1. Locate the statement "The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs." on your vehicle’s placard. 2. Determine the combined weight of the driver and passengers that will be riding in your vehicle. 3. Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs. 4. The resulting figure equals the available amount of cargo and luggage load capacity. For example, if the "XXX" amount equals 1400 lbs. and there will be five 150 lb passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs. (1400-750 (5 x 150) = 650 lbs.) 5. Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4. 6. If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. Consult this manual to 201 determine how this reduces the available cargo and luggage load capacity of your vehicle.” This vehicle is neither designed nor intended to tow a trailer. Example 1 1. Vehicle Capacity Weight for Example 1 = 453 kg (1,000 lbs). 2. Subtract Occupant Weight @ 68 kg (150 lbs) × 2 = 136 kg (300 lbs). 3. Available Occupant and Cargo Weight = 317 kg (700 lbs). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 202 DRIVING AND OPERATING weight of the driver, passengers, and cargo should never exceed the vehicle's capacity weight. Certification Label Example 2 Example 3 1. Vehicle Capacity Weight for 1. Vehicle Capacity Weight for Example 2 = 453 kg (1,000 lbs). 2. Subtract Occupant Weight @ 68 kg (150 lbs) × 5 = 340 kg (750 lbs). 3. Available Cargo Weight = 113 kg (250 lbs). Example 3 = 453 kg (1,000 lbs). 2. Subtract Occupant Weight @ 91 kg (200 lbs) × 5 = 453 kg (1,000 lbs). 3. Available Cargo Weight = 0 kg (0 lbs). Refer to the vehicle's Tire and Loading Information label for specific information about the vehicle's capacity weight and seating positions. The combined Label Example A vehicle-specific Certification label is attached to the vehicle's center pillar (B-pillar). The label may show the gross weight capacity of the vehicle, called the Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight of the vehicle, all occupants, fuel, and cargo. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING { Warning Starting and Operating Things inside the vehicle can strike and injure people in a sudden stop or turn, or in a crash. . Put things in the cargo area of the vehicle. In the cargo area, put them as far forward as possible. Try to spread the weight evenly. . Never stack heavier things, like suitcases, inside the vehicle so that some of them are above the tops of the seats. . Do not leave an unsecured child restraint in the vehicle. . Secure loose items in the vehicle. . Do not leave a seat folded down unless needed. New Vehicle Break-In Follow these recommended guidelines during the first 2 400 km (1,500 mi) of driving this vehicle. Parts have a break-in period and performance will be better in the long run. For the first 2 400 km (1,500 mi): . Avoid full throttle starts and abrupt stops. . Do not exceed 4000 engine rpm. . Avoid driving at any one constant speed, fast or slow. . Avoid downshifting to brake or slow the vehicle when the engine speed will exceed 4000 rpm. . Do not let the engine labor. Never lug the engine in high gear at low speeds. . Do not participate in track events, sport driving schools, or similar activities during this break-in period. 203 . Check engine oil with every refueling and add if necessary. Oil and fuel consumption may be higher than normal during the first 2 400 km (1,500 mi). . To break in new tires, drive at moderate speeds and avoid hard cornering for the first 300 km (200 mi). New tires do not have maximum traction and may tend to slip. . New brake linings also need a break-in period. Avoid making hard stops during the first 300 km (200 mi). This is recommended every time brake linings are replaced. Composite Materials This vehicle may be equipped with parts containing carbon fiber, sheet-molding compound, or other composite materials. Dealer-installed accessories may also contain composite materials. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 204 DRIVING AND OPERATING { Warning Ignition Positions Exposed edges of parts containing carbon fiber and other composite materials can be sharp. Contact with these parts could result in injury. Use caution to avoid contacting these parts, including when washing the vehicle. If the parts are damaged, replace the parts promptly with replacements from your dealer. { Warning Rocker extensions may break under pressure, resulting in property damage or injury. Do not stand on the rocker extension or use it as a step. { Warning Rear end spoilers may break under pressure, resulting in property damage or injury. Do not push the vehicle by the spoiler or use the spoiler as a handle. Stopping the Engine/OFF (No Indicator Lights) : When the vehicle is stopped, press ENGINE START/ STOP once to turn the engine off. If the vehicle is in P (Park), the ignition will turn off, and Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP) 0 207. The vehicle has an electronic keyless ignition with pushbutton start. The remote key must be in the vehicle for the system to operate. If the pushbutton start is not working, the vehicle may be near a strong radio antenna signal causing interference to the Keyless Access system. See Remote Keyless Entry (RKE) System Operation 0 7. To shift out of P (Park), the vehicle must be on, and the brake pedal must be applied. If the vehicle is not in P (Park), the ignition will return to ACC/ ACCESSORY and display a message in the Driver Information Center (DIC). When the vehicle is shifted into P (Park), the ignition system will switch to OFF. The vehicle may have an electric steering column lock. The lock is activated when the vehicle is switched to OFF and the driver door is opened. A sound may be heard as the lock actuates or releases. The steering column lock may not release with the wheels turned off center. If this happens, the vehicle may not start. Move the steering wheel from left to right while attempting to start the vehicle. If this does not work, the vehicle needs service. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Do not turn the engine off when the vehicle is moving. This will cause a loss of power assist in the brake and steering systems and disable the airbags. If the vehicle must be shut off in an emergency: 1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This may deplete power assist, requiring increased brake pedal force. 2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving. After shifting to N (Neutral), firmly apply the brakes and steer the vehicle to a safe location. 3. Come to a complete stop, shift to P (Park), and turn the ignition to OFF. On vehicles with an automatic transmission, the shift lever must be in P (Park) to turn the ignition switch to the OFF position. 4. Set the parking brake. See Electric Parking Brake 0 221. { Warning Turning off the vehicle while moving may cause loss of power assist in the brake and steering systems and disable the airbags. While driving, only shut the vehicle off in an emergency. If the vehicle cannot be pulled over, and must be shut off while driving, press and hold the ENGINE START/ STOP button for longer than two seconds, or press twice in five seconds. ACC/ACCESSORY (Amber Indicator Light) : This mode allows you to use some electrical accessories when the engine is off. With the ignition off, pressing the button one time without the brake pedal applied will place the ignition system in ACC/ACCESSORY. The ignition will switch from ACC/ ACCESSORY to OFF after five minutes to prevent battery rundown. 205 ON/RUN/START (Green Indicator Light) : This mode is for driving and starting. With the ignition off, and the brake pedal applied, pressing the button once will place the ignition system in ON/RUN/START. Once engine cranking begins, release the button. Engine cranking will continue until the engine starts. See Starting the Engine 0 206. The vehicle will then remain on. Service Mode This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle off, and the brake pedal not applied, pressing and holding the button for more than five seconds will place the vehicle in Service Mode. The instruments and audio systems will operate as they do in ON/RUN, but the vehicle will not be able to be driven. The engine will not start in Service Mode. Press the button again to turn the vehicle off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 206 DRIVING AND OPERATING Starting the Engine Shift to P (Park) or N (Neutral). To restart the engine when the vehicle is already moving, use N (Neutral) only. Caution Do not try to shift to P (Park) if the vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when the vehicle is stopped. The idle speed will go down as the engine gets warm. Do not race the engine immediately after starting it. If the remote key is not in the vehicle, if there is interference, or if the remote key battery is low, a Driver Information Center (DIC) will display a message. See Remote Keyless Entry (RKE) System Operation 0 7. Caution If you add electrical parts or accessories, you could change the way the engine operates. Any resulting damage would not be covered by the vehicle warranty. See Add-On Electrical Equipment 0 265. Cranking the engine for long periods of time, by trying to start the engine immediately after cranking has ended, can overheat and damage the cranking motor, and drain the battery. Wait at least 15 seconds between each try, to let the cranking motor cool down. Starting Procedure 1. With the Keyless Access system, the remote key must be in the vehicle. Press ENGINE START/ STOP with the brake pedal applied. When the engine begins cranking, let go of the button. 2. If the engine does not start after five to 10 seconds, especially in very cold weather (below −18 °C or 0 °F), it could be flooded with too much gasoline. Try pushing the accelerator pedal all the way to the floor and holding it there as you Caution press ENGINE START/STOP. Wait at least 15 seconds between each try, to allow the cranking motor to cool down. When the engine starts, release the accelerator. If the vehicle starts briefly but then stops again, do the same thing. This clears the extra gasoline from the engine. Do not race the engine immediately after starting it. Operate the engine and transmission gently until the oil warms up and lubricates all moving parts. Stop/Start System The Stop/Start system will shut off the engine to help conserve fuel. It has components designed for the increased number of starts. { Warning The automatic engine Stop/Start feature causes the engine to shut off while the vehicle is still on. Do not exit the vehicle before shifting to P (Park). The vehicle may restart and move unexpectedly. Always (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Warning (Continued) shift to P (Park), and then turn the ignition off before exiting the vehicle. Auto Engine Stop/Start When the brakes are applied and the vehicle is at a complete stop, the engine may turn off. When stopped, the tachometer displays AUTO STOP. See Tachometer 0 93. When the brake pedal is released or the accelerator pedal is pressed, the engine will restart. To maintain vehicle performance, other conditions may cause the engine to automatically restart before the brake pedal is released. Auto Stops may not occur and/or Auto Starts may occur because: . The climate control settings require the engine to be running to cool or heat the vehicle interior. . The vehicle battery needs to charge. . The vehicle battery has recently been disconnected. . Minimum vehicle speed has not . . . . . . . . . been reached since the last Auto Stop. The accelerator pedal is pressed. The engine or transmission is not at the required operating temperature. The outside temperature is not in the required operating range. The vehicle transmission is shifted out of D (Drive) to any gear other than P (Park). Certain driver modes have been selected. See Driver Mode Control 0 225. The vehicle is on a steep hill or grade. The driver door has been opened or the driver seat belt has been unbuckled. The hood has been opened. The Auto Stop has reached the maximum allowed time. 207 Auto Stop Disable Switch The automatic engine Stop/Start feature can be disabled and enabled by pressing the switch with the h symbol. Auto Stop is enabled each time you start the vehicle. When h is illuminated, the system is enabled. Retained Accessory Power (RAP) When the ignition is turned from on to off, the following features (if equipped) will continue to function for up to 10 minutes, or until the Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 208 DRIVING AND OPERATING driver door is opened. These features will also work when the ignition is in RUN or ACC/ACCESSORY: . Infotainment System . Power Windows (during RAP this functionality will be lost when any door is opened) . Sunroof (during RAP this functionality will be lost when any door is opened) . Auxiliary Power Outlet . Audio System . OnStar System Shifting Into Park (Mechanical Shifter) 1. Hold the brake pedal down and set the parking brake. See Electric Parking Brake 0 221. 2. Move the shift lever into P (Park) by holding in the button on the shift lever and pushing the shift lever all the way toward the front of the vehicle. 3. Turn the ignition off. Leaving the Vehicle with the Engine Running { Warning It can be dangerous to leave the vehicle with the engine running. It could overheat and catch fire. It is dangerous to get out of the vehicle if the vehicle is not in P (Park) with the parking brake firmly set. The vehicle can roll. Do not leave the vehicle when the engine is running. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and shift to P (Park). If you have to leave the vehicle with the engine running, be sure the vehicle is in P (Park) and the parking brake is set before you leave it. After you have moved the shift lever into P (Park), hold the regular brake pedal down. Then, see if you can move the shift lever away from P (Park) without first pressing the button. If you can, it means that the shift lever was not fully locked in P (Park). Torque Lock Torque lock is when the weight of the vehicle puts too much force on the parking pawl in the transmission. This happens when parking on a hill and shifting the transmission into P (Park) is not done properly and then it is difficult to shift out of P (Park). To prevent torque lock, set the parking brake and then shift into P (Park). To find out how, see “Shifting Into Park” listed previously. If torque lock does occur, your vehicle may need to be pushed uphill by another vehicle to relieve the parking pawl pressure, so you can shift out of P (Park). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Shifting Into Park (Electronic Shifter) To shift into P (Park): 1. Hold the brake pedal down and set the parking brake. See Electric Parking Brake 0 221. 2. Press the button on top of the shift lever to shift into P (Park). See Automatic Transmission (Mechanical Shifter) 0 211 or Automatic Transmission (Electronic Shifter) 0 213. 3. The P indicator on the shift lever will turn red when the vehicle is in P (Park). Leaving the Vehicle with the Engine Running { Warning It can be dangerous to leave the vehicle with the engine running. It could overheat and catch fire. (Continued) Warning (Continued) It is dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. Do not leave the vehicle when the engine is running. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to P (Park). See Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208. If you have to leave the vehicle with the engine running, be sure the vehicle is in P (Park) and the parking brake is set before you leave it. 209 Shifting out of Park (Mechanical Shifter) This vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to prevent movement of the shift lever out of P (Park), unless the ignition is on and the brake pedal is applied. The shift lock release is always functional except in the case of an uncharged or low voltage (less than 9 volt) battery. If the vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the battery. See Jump Starting 0 315 for more information. To shift out of P (Park): 1. Apply the brake pedal. 2. Release the parking brake. See Electric Parking Brake 0 221. 3. Press the shift lever button. 4. Move the shift lever. If unable to shift out of P (Park): 1. Fully release the shift lever button. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 210 DRIVING AND OPERATING 2. While holding down the brake pedal, press the shift lever button again. 3. Move the shift lever. If the shift lever will not move from P (Park), consult your dealer or a professional towing service. Shifting out of Park (Electronic Shifter) This vehicle is equipped with an electronic transmission. The shift lock release button is designed to prevent inadvertent shifting out of P (Park). To shift out of P (Park): 1. Ensure the engine is running. 2. Apply the brake pedal. 3. Press and hold the shift lock release button on the shift lever. 4. Move the shift lever to the desired position. For N (Neutral) hold the lever in the N (Neutral) position until the N indicator illuminates red. 5. The P indicator will turn white and the gear indicator will turn red when the vehicle is no longer in P (Park). 6. After releasing the shift lever, it will return to the center position. If the vehicle cannot shift from P (Park), a Driver Information Center (DIC) message may be displayed. Check that the ignition is on, the engine is running, the brake pedal is applied, and the shift lock release button is pressed when you are attempting to shift out of P (Park). If all of these are met but the vehicle will not shift out of P (Park), see your dealer for service. Parking over Things That Burn { Warning Things that can burn could touch hot exhaust parts under the vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn. Extended Parking It is best not to park with the vehicle running. If the vehicle is left running, be sure it will not move and there is adequate ventilation. See Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208 and Engine Exhaust 0 211. If the vehicle is left parked and running with the remote key outside the vehicle, it will continue to run for up to 15 minutes. If the vehicle is left parked and running with the remote key inside the vehicle, it will continue to run for up to 30 minutes. The vehicle could turn off sooner if it is parked on a hill, due to lack of available fuel. The timer will reset if the vehicle is taken out of P (Park) while it is running. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Engine Exhaust { Warning Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: . The vehicle idles in areas with . . . . poor ventilation (parking garages, tunnels, deep snow that may block underbody airflow or tail pipes). The exhaust smells or sounds strange or different. The exhaust system leaks due to corrosion or damage. The vehicle exhaust system has been modified, damaged, or improperly repaired. There are holes or openings in the vehicle body from damage or aftermarket modifications that are not completely sealed. (Continued) 211 Warning (Continued) Automatic Transmission If unusual fumes are detected or if it is suspected that exhaust is coming into the vehicle: Automatic Transmission (Mechanical Shifter) . Drive it only with the windows completely down. . Have the vehicle repaired immediately. Never park the vehicle with the engine running in an enclosed area such as a garage or a building that has no fresh air ventilation. Running the Vehicle While Parked It is better not to park with the engine running. If the vehicle is left with the engine running, follow the proper steps to be sure the vehicle will not move. See Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208 and Engine Exhaust 0 211. There are several different positions for the shift lever. P : Use P (Park) when starting the vehicle to ensure the vehicle does not move. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 212 DRIVING AND OPERATING { Warning It is dangerous to get out of the vehicle if the transmission is not in P (Park) with the parking brake set. The vehicle can roll. Do not leave the vehicle when the engine is running. If the engine has been left running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when on fairly level ground, always set the parking brake and place the transmission into P (Park). See Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208 and Electric Parking Brake 0 221. Make sure the shift lever is fully in P (Park) before starting the engine. The vehicle has an electronic shift lock release system. Fully apply the regular brakes first and then press the shift lever button before shifting from P (Park) when the ignition is on. If you cannot shift out of P (Park), ease pressure on the shift lever and push the shift lever all the way into P (Park) as you maintain brake application. Then press the shift lever button and move the shift lever into another gear. See Shifting out of Park (Electronic Shifter) 0 210 or Shifting out of Park (Mechanical Shifter) 0 209. Caution Shifting to R (Reverse) while the vehicle is moving forward could damage the transmission. The repairs would not be covered by the vehicle warranty. Shift to R (Reverse) only after the vehicle is stopped. R : Use this gear to back up. At low vehicle speeds, R (Reverse) can be used to rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission. See If the Vehicle Is Stuck 0 199. N : In this position, the engine does not connect with the wheels. To restart the engine when the vehicle is already moving, use N (Neutral) only. { Warning Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed. Caution Shifting out of P (Park) or N (Neutral) with the engine running at high speed may damage the transmission. The repairs would not be covered by the vehicle warranty. Be sure the engine is not running at high speed when shifting the vehicle. Caution A transmission hot message may display if the automatic transmission fluid is too hot. (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Caution (Continued) Caution Driving under this condition can damage the vehicle. Stop and idle the engine to cool the automatic transmission fluid. This message clears when the transmission fluid has cooled sufficiently. Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transmission. The repair will not be covered by the vehicle warranty. If the vehicle is stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place. D : This position is for normal driving. If more power is needed for passing, press the accelerator pedal down. Downshifting the transmission in slippery road conditions could result in skidding. See “Skidding” under Loss of Control 0 192. M : This mode can be entered by moving the shift lever from D (Drive) to M (Manual Mode). M (Manual Mode) allows the driver to select gears appropriate for current driving conditions. M (Manual Mode) can be exited by returning the shift lever to D (Drive). See Manual Mode (Electronic Shifter) 0 219 or Manual Mode (Mechanical Shifter) 0 218. While in Sport or Track Mode the vehicle monitors driving behavior, and automatically enables Performance Shift Features when spirited driving is detected. These features maintain lower transmission gears to increase available engine braking and improve acceleration response. The vehicle will exit these features and return to Sport or Track Mode normal operation after a short period when no spirited driving is detected. See Driver Mode Control 0 225. Engine speeds may be increased while driving at highway speeds while the engine is still warming up. 213 Automatic Transmission (Electronic Shifter) The shift pattern is displayed in the top of the shift lever. The selected gear position will illuminate red on the shift lever, while all others will be displayed in white. If the shift is not immediate, as in very cold conditions, the indicator on the shift lever may flash until it is fully engaged. The shift lever always starts from a center position, represented by an up/ down arrow on the shift pattern. After releasing the shift lever, it will return to the center position. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 214 DRIVING AND OPERATING The transmission does not operate when the vehicle is off. { Warning If the vehicle is in ACC/ACCESSORY, the transmission can be shifted into P (Park). It is dangerous to get out of the vehicle if the transmission is not in P (Park) with the parking brake set. The vehicle can roll. If the vehicle is turned off while at a relatively high vehicle speed, the transmission will automatically shift to N (Neutral). Once the vehicle is stopped, P (Park) is automatically selected. P : This position locks the drive wheels. Use P (Park) when starting the engine to prevent the vehicle from moving easily. Do not leave the vehicle when the engine is running. If the engine has been left running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when on fairly level ground, always set the parking brake and place the transmission into P (Park). See Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208 and Electric Parking Brake 0 221. This vehicle is equipped with an electronic controlled transmission. The shift lock release button is designed to prevent inadvertent shifting out of P (Park) unless the ignition is on, the brake pedal is applied, and the shift lock release button is pressed. When the vehicle is stopped, press ENGINE START/STOP to turn off the vehicle. The transmission will shift to P (Park) automatically, unless the vehicle is in N (Neutral). See “Car Wash Mode” later in this section. The vehicle will not shift into P (Park) if it is moving too fast. Stop the vehicle and shift into P (Park). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING To shift in and out of P (Park), see Shifting Into Park (Electronic Shifter) 0 209 or Shifting Into Park (Mechanical Shifter) 0 208 and Shifting out of Park (Electronic Shifter) 0 210 or Shifting out of Park (Mechanical Shifter) 0 209. Service Shift Lever Message If the message SERVICE SHIFTER SEE OWNER’S MANUAL appears in the Driver Information Center (DIC), the shift lever needs service. Have the vehicle serviced as soon as possible. If the vehicle is automatically shifting into P (Park), check to see if the P (Park) button on top of the shift lever is stuck. To operate the vehicle, hold the shift lever in the desired gear, R (Reverse) or D (Drive), until vehicle speed exceeds 15 km/h (10 mph), then release the shift lever. R : Use this gear to back up. If the vehicle is shifted from either R (Reverse) to D (Drive), or D (Drive) or M (Manual Mode) to R (Reverse) while the speed is too high, the vehicle will shift to N (Neutral). Reduce the vehicle speed and try the shift again. To shift into R (Reverse): 1. Bring the vehicle to a complete stop. 2. Press and hold shift lock release button on the side of the shift lever. 3. From the center position, move the shift lever forward through the first detent to the end of travel. R is illuminated in red. 4. After releasing the shift lever, it will return to the center position. To shift out of R (Reverse): 1. Bring the vehicle to a complete stop. 2. Shift to the desired gear. 3. After releasing the shift lever, it will return to the center position. At low vehicle speeds, R (Reverse) can be used to rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission. See If the Vehicle Is Stuck 0 199. 215 N : In this position, the engine does not connect with the wheels. To restart the engine when the vehicle is already moving, use N (Neutral) only. { Warning Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed. Caution Shifting out of P (Park) or N (Neutral) with the engine running at high speed may damage the transmission. The repairs would not be covered by the vehicle warranty. Be sure the engine is not running at high speed when shifting the vehicle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 216 DRIVING AND OPERATING The vehicle is not designed to stay in N (Neutral) for more than five minutes. It may automatically shift into P (Park). N (Neutral) is not intended for towing. If the vehicle needs to be towed, see Towing the Vehicle 0 317. To shift into N (Neutral): 1. Move the shift lever forward to the first detent from the center position. . If the vehicle is in P (Park), apply the brake pedal and press the shift lock release button while moving the shift lever forward. . N will illuminate in red. 2. After releasing the shift lever, it will return to the center position. To shift out of N (Neutral): 1. Bring the vehicle to a complete stop. 2. Shift to the desired gear. If shifting from N (Neutral) to R (Reverse) the shift lock release button will need to be pressed. 3. After releasing the shift lever, it will return to the center position. Car Wash Mode This vehicle includes a Car Wash Mode that allows the vehicle to remain in N (Neutral) for use in automatic car washes. Car Wash Mode (Engine Off – Driver in Vehicle) To place the vehicle in N (Neutral) with the engine off and the vehicle occupied: 1. Drive to the entrance of the car wash. 2. Apply the brake pedal. 3. Shift to N (Neutral). 4. Turn off the engine and release the brake pedal. 5. The indicator should continue to show N. If it does not, repeat Steps 2–4. 6. The vehicle is now ready for the car wash. Car Wash Mode (Engine Off – Driver out of Vehicle) To place the vehicle in N (Neutral) with the engine off and the vehicle unoccupied: 1. Drive to the entrance of the car wash. 2. Apply the brake pedal. 3. Open the door. 4. Shift to N (Neutral). 5. Turn off the engine and release the brake pedal. 6. The indicator should continue to show N. If it does not, repeat Steps 2–5. 7. Exit the vehicle and close the door. The vehicle is now ready for the car wash. 8. The vehicle may automatically shift to P (Park) upon re-entry. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Car Wash Mode (Engine On – Driver in Vehicle) To place the vehicle in N (Neutral) with the engine on and the vehicle occupied: 1. Drive to the entrance of the car wash. 2. Apply the brake pedal. 3. Shift to N (Neutral). 4. Release the brake pedal. The vehicle is now ready for the car wash. Car Wash Mode (Engine On – Driver out of Vehicle) To place the vehicle in N (Neutral) with the engine on and the vehicle unoccupied: 1. Drive to the entrance of the car wash. 2. Apply the brake pedal. 3. Open the door. 4. Shift to N (Neutral), then release the brake pedal. 5. The indicator should continue to show N. If it does not, repeat Steps 2–4. 6. Exit the vehicle and close the door. The vehicle is now ready for the car wash. 7. The vehicle may automatically shift to P (Park) upon re-entry. Caution A transmission hot message may display if the automatic transmission fluid is too hot. Driving under this condition can damage the vehicle. Stop and idle the engine to cool the automatic transmission fluid. This message clears when the transmission fluid has cooled sufficiently. D : This position is for normal driving. If more power is needed for passing, press the accelerator pedal down. To shift into D (Drive): 1. Bring the vehicle to a complete stop. 217 2. From the center position, move the shift lever back. . If the vehicle is in P (Park) press the shift lock release button while pulling the shift lever back. . D will illuminate in red. . After releasing the shift lever, it will return to the center position. To shift out of D (Drive): 1. Bring the vehicle to a complete stop. 2. Shift to the desired gear. 3. After releasing the shift lever, it will return to the center position. Downshifting the transmission in slippery road conditions could result in skidding. See “Skidding” under Loss of Control 0 192. Caution Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transmission. The (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 218 DRIVING AND OPERATING 3. To exit, move the shift lever back to D (Drive). Caution (Continued) repair will not be covered by the vehicle warranty. If the vehicle is stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place. Manual Mode (Mechanical Shifter) Tap Shift Caution Driving with the engine at a high rpm without upshifting while using Tap Shift, could damage the vehicle. Always upshift when necessary while using Tap Shift. Vehicles with Tap Shift have controls on the back of the steering wheel to manually shift the automatic transmission. To enter Permanent Tap Shift Mode: 1. Move the shift lever from D (Drive) to M (Manual Mode). While in Tap Shift Mode, the M on the instrument cluster will become highlighted, and the current gear is indicated. 2. Tap the left control to downshift, and the right control to upshift. To shift to the lowest available gear, press and hold the left control. With the shift lever in D (Drive) and not in Permanent Tap Shift Mode, the tap shift controls will activate a temporary tap manual shift mode, allowing the transmission to be manually shifted. While in Temporary Tap Shift Mode, the D on the instrument cluster will be highlighted and the current gear shown. Automatic shifts return after no manual shifts have been done for seven to 10 seconds. The Temporary Tap Shift Mode can also be deactivated by holding the right upshift control briefly. While using Tap Shift, the vehicle will have firmer, quicker shifting. You can use this for sport driving or when climbing or descending hills, to stay in gear longer, or to downshift for more power or engine braking. The transmission will only allow you to shift into gears appropriate for the vehicle speed and engine revolutions per minute (rpm). The transmission will not automatically shift to the next Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING 2. After releasing the shift lever, it will return to the center position. 3. Pull the control toward you to shift. Pull the left control to downshift, and the right control to upshift. To shift to the lowest available gear, pull and hold the left control. lower gear if the engine rpm is too high, nor to the next higher gear when the maximum engine rpm is reached. If shifting is prevented for any reason, a SHIFT DENIED message will be displayed in the instrument cluster. When accelerating the vehicle from a stop in snowy and icy conditions, it is suggested to shift into second gear. A higher gear allows the vehicle to gain more traction on slippery surfaces. Manual Mode (Electronic Shifter) Tap Shift Caution Driving with the engine at a high rpm without upshifting while using Tap Shift, could damage the vehicle. Always upshift when necessary while using Tap Shift. 219 If equipped, vehicles with Tap Shift have controls on the back of the steering wheel to manually shift the automatic transmission. Permanent Tap Shift Mode To enter Permanent Tap Shift Mode: 1. With the vehicle in D (Drive), pull back on the shift lever to activate M (Manual Mode). The M in the shift pattern will illuminate in red, and the D will switch to white. While in Permanent Tap Shift Mode, the M on the instrument cluster will be highlighted and the current gear shown. To exit Permanent Tap Shift Mode: 1. To exit M (Manual Mode) and return to D (Drive), pull back on the shift lever. The D in the shift pattern will illuminate in red, and the M will switch to white. 2. After releasing the shift lever, it will return to the center position. M (Manual Mode) can be exited to return to D (Drive) at any speed by pulling the lever rearward from the center position. It is not necessary to stop the vehicle or shift to N (Neutral) or P (Park) prior to shifting back to D (Drive). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 220 DRIVING AND OPERATING Temporary Tap Shift Mode To enter Temporary Tap Shift Mode: 1. With the transmission in D (Drive) and not in Permanent Tap Shift Mode, the Tap Shift controls will activate a Temporary Tap Shift Mode, allowing the transmission to be manually shifted. While in Temporary Tap Shift Mode, the D on the instrument cluster will be highlighted and the current gear shown. 2. To shift to the lowest available gear, press and hold the left control. 3. To deactivate, hold the right control briefly. Automatic shifts return after no manual shifts have been done for seven to 10 seconds. While using Tap Shift, the vehicle will have firmer, quicker shifting. This can be used for sport driving or when climbing or descending hills, to stay in gear longer, or to downshift for more power or engine braking. The transmission will only allow shifting into gears appropriate for the vehicle speed and engine revolutions per minute (rpm). If shifting is prevented for any reason, the M or D will flash in the instrument cluster. The transmission will not automatically shift to the next higher gear if the engine rpm is too high. It will only automatically shift to the next lower gear if the engine rpm is much too low. Drive Systems during this time. If the brake pedal is pressed during the tests or when the electric brake boost system is off, a noticeable change in pedal force and travel may be felt. This is normal. Antilock Brake System (ABS) The Antilock Brake System (ABS) helps prevent a braking skid and maintain steering while braking hard. All-Wheel Drive Vehicles with this feature always send engine power to all four wheels. It is fully automatic, and adjusts itself as needed for road conditions. Brakes Electric Brake Boost Vehicles equipped with electric brake boost have hydraulic brake circuits that are electronically controlled when the brake pedal is applied during normal operation. The system performs routine tests and turns off within a few minutes after the vehicle is turned off. Noise may be heard If there is a problem with ABS, this warning light stays on. See Antilock Brake System (ABS) Warning Light 0 100. ABS does not change the time needed to get a foot on the brake pedal and does not always decrease stopping distance. If you get too close to the vehicle ahead, there will not be enough time to apply the brakes if Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING that vehicle suddenly slows or stops. Always leave enough room ahead to stop, even with ABS. Using ABS Do not pump the brakes. Just hold the brake pedal down firmly. Hearing and feeling ABS operate is normal. Braking in Emergencies ABS allows steering and braking at the same time. In many emergencies, steering can help even more than braking. Electric Parking Brake The Electric Parking Brake (EPB) can always be applied, even if the vehicle is off. In case of insufficient electrical power, the EPB cannot be applied or released. To prevent draining the battery, avoid unnecessary repeated cycles of the EPB. The system has a red parking brake status light and an amber service parking brake warning light. See Electric Parking Brake Light 0 99 and Service Electric Parking Brake Light 0 99. There are also parking brake-related Driver Information Center (DIC) messages. Before leaving the vehicle, check the red parking brake status light to ensure that the parking brake is applied. EPB Apply To apply the EPB: 1. Be sure the vehicle is at a complete stop. 2. Press the EPB switch momentarily. The red parking brake status light will flash and then stay on once the EPB is fully applied. If the red parking brake 221 status light flashes continuously, then the EPB is only partially applied or there is a problem with the EPB. A DIC message will display. Release the EPB and try to apply it again. If the light does not come on, or keeps flashing, have the vehicle serviced. Do not drive the vehicle if the red parking brake status light is flashing. See your dealer. If the amber service parking brake warning light is on, press the EPB switch. Continue to hold the switch until the red parking brake status light remains on. If the amber service parking brake warning light is on, see your dealer. If the EPB is applied while the vehicle is moving, the vehicle will decelerate as long as the switch is pressed. If the switch is pressed until the vehicle comes to a stop, the EPB will remain applied. The vehicle may automatically apply the EPB in some situations when the vehicle is not moving. This is normal, and is done to periodically check the Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 222 DRIVING AND OPERATING correct operation of the EPB system, or at the request of other safety functions that utilize the EPB. If the EPB fails to apply, block the rear wheels to prevent vehicle movement. EPB Release To release the EPB: 1. Turn the ignition on or to ACC/ ACCESSORY. 2. Apply and hold the brake pedal. 3. Press the EPB switch momentarily. The EPB is released when the red parking brake status light is off. If the amber service parking brake warning light is on, release the EPB by pressing and holding the EPB switch. Continue to hold the switch until the red parking brake status light is off. If either light stays on after release is attempted, see your dealer. Caution Driving with the parking brake on can overheat the brake system and cause premature wear or damage to (Continued) Caution (Continued) brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving. Automatic EPB Release The EPB will automatically release if the vehicle is running, placed into gear, and an attempt is made to drive away. Avoid rapid acceleration when the EPB is applied, to preserve parking brake lining life. Brake Assist Brake Assist detects rapid brake pedal applications due to emergency braking situations and provides additional braking to activate the Antilock Brake System (ABS) if the brake pedal is not pushed hard enough to activate ABS normally. Minor noise, brake pedal pulsation, and/or pedal movement during this time may occur. Continue to apply the brake pedal as the driving situation dictates. Brake Assist disengages when the brake pedal is released. Hill Start Assist (HSA) { Warning Do not rely on the HSA feature. HSA does not replace the need to pay attention and drive safely. You may not hear or feel alerts or warnings provided by this system. Failure to use proper care when driving may result in injury, death, or vehicle damage. See Defensive Driving 0 190. When the vehicle is stopped on a grade, Hill Start Assist (HSA) temporarily prevents the vehicle from rolling in an unintended direction during the transition from brake pedal release to accelerator pedal apply. The brakes release when the accelerator pedal is applied or automatically release after a few seconds. The brakes may also release under other conditions. Do not rely on HSA to hold the vehicle. HSA is available when the vehicle is facing uphill in a forward gear, or when facing downhill in Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING R (Reverse). The vehicle must come to a complete stop on a grade for HSA to activate. Automatic Vehicle Hold (AVH) When Automatic Vehicle Hold (AVH) is turned on and the vehicle is braked to a stop, AVH prevents the vehicle from moving during the transition from brake pedal release to accelerator pedal apply. The brakes release when the accelerator pedal is applied. The brakes may also release under other conditions. Do not rely on AVH to hold the vehicle. If the accelerator pedal is not applied within a few minutes, the Electric Parking Brake will apply. The parking brake will also apply if the driver door is opened or the driver seat belt is unfastened while AVH is holding the vehicle. { Warning Do not rely on this feature. It does not replace the need to pay attention and drive safely. You may not hear or feel alerts or warnings provided by this system. Failure to use proper care when driving may result in injury, death, or vehicle damage. AVH can be turned on by pressing AUTO HOLD. The indicator light on the switch will come on. The AVH light on the instrument panel will come on while AVH is actively holding the vehicle. See Automatic Vehicle Hold (AVH) Light 0 100. 223 Ride Control Systems Traction Control/Electronic Stability Control The vehicle has a Traction Control System (TCS) and StabiliTrak/ Electronic Stability Control (ESC). These systems help limit wheel slip and assist the driver in maintaining control, especially on slippery road conditions. TCS activates if it senses that any of the drive wheels are spinning or beginning to lose traction. When this happens, the system brakes the spinning wheel(s) and/or reduces engine power to limit wheel spin. StabiliTrak/ESC activates when the computer senses a difference between the intended path and the direction the vehicle is actually traveling. StabiliTrak/ESC selectively applies braking pressure at any one of the vehicle's brakes to help steer the vehicle in the intended direction. If cruise control is being used and TCS or StabiliTrak/ESC begins to limit wheel spin, cruise control will Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 224 DRIVING AND OPERATING disengage. Cruise control may be turned back on when road conditions allow. Both systems come on automatically when the vehicle is started and begins to move. The systems may be heard or felt while they are operating or while performing diagnostic checks. This is normal and does not mean there is a problem with the vehicle. It is recommended to leave both systems on for normal driving conditions, but It may be necessary to turn TCS off if the vehicle gets stuck in sand, mud, ice, or snow. See If the Vehicle Is Stuck 0 199 and “Turning the Systems Off and On” later in this section. The indicator light for both systems is in the instrument cluster. This light will: . Flash when TCS is limiting wheel spin. . Flash when StabiliTrak/ESC is activated. . Turn on and stay on when either system is not working. If either system fails to turn on or to activate, a message may display in the Driver Information Center (DIC), and d comes on and stays on to indicate that the system is inactive and is not assisting the driver in maintaining control. The vehicle is safe to drive, but driving should be adjusted accordingly. If d comes on and stays on: 1. Stop the vehicle. 2. Turn the engine off and wait 15 seconds. 3. Start the engine. Drive the vehicle. if d comes on and stays on, the vehicle may need more time to diagnose the problem. If the condition persists, see your dealer. Turning the Systems Off and On Caution Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged. To turn off only TCS, press and release g. The traction off light i displays in the instrument cluster. A DIC message may display. To turn TCS on again, press and release g. The traction off light i displayed in the instrument cluster will turn off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING If TCS is limiting wheel spin when g is pressed, the system will not turn off until the wheels stop spinning. To turn off both TCS and StabiliTrak/ ESC, press and hold g until the traction off light i and StabiliTrak/ ESC OFF light g come on and stay on in the instrument cluster. A DIC message may display. To turn TCS and StabiliTrak/ESC on again, press and release g. The traction off light i and StabiliTrak/ ESC OFF light g in the instrument cluster turn off. Adding accessories can affect the vehicle's performance. See Accessories and Modifications 0 267. Driver Mode Control Driver Mode Control (DMC) allows the driver to adjust the overall driving experience to better suit driver preference by adjusting vehicle systems to fit specific driving needs. Drive Mode availability and affected vehicle systems are dependent on vehicle trim level, region, and optional features. 225 To activate, press the MODE switch on the center console. Use the up and down arrows to move through the menu. Tour will be the default mode at every ignition cycle. When a mode is selected, an indicator will come on in the instrument cluster. Mode Activation V-Mode Button To activate V-Mode, press the V-Mode button on the steering wheel. To deactivate, select a different mode using the DMC switch, or press the V-Mode button on the steering wheel. When V-Mode is deactivated by the V-Mode button, DMC returns to Tour Mode. Driver Mode Control Switch Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 226 DRIVING AND OPERATING Mode Description Tour Mode Use for normal city and highway driving to provide a smooth, soft ride. This mode provides a balance between comfort and handling. This is the standard mode. See “Mode Selection Attributes” later in this section. When Tour Mode is selected, no indicator will display. Sport Mode Use this mode where road conditions or personal preference demand a more controlled response. When this mode is selected, the vehicle immediately downshifts. The vehicle also monitors driving behaviors and automatically enables Performance Shift Features when spirited driving is detected. These features maintain lower transmission gears to increase available engine braking and improve acceleration response. The vehicle will exit this feature and return to normal operation after a short period when spirited driving is no longer detected. The steering changes to provide more precise control. If the vehicle has Magnetic Ride Control, the suspension changes to provide better cornering performance. mode. See “Performance Traction Management” in Competitive Driving Mode 0 230. See “Mode Selection Attributes” later in this section. See “Mode Selection Attributes” later in this section. Snow/Ice Mode My Mode Use this mode for slippery surfaces to help control wheel speed. This mode can compromise the acceleration on dry asphalt. My Mode is used to personalize everyday driving. This mode is designed to allow the driver to configure vehicle systems to their own preference for city or normal driving. This feature is not intended for use when the vehicle is stuck in sand, mud, or gravel. If the vehicle is stuck, see If the Vehicle Is Stuck 0 199. See “Mode Selection Attributes” later in this section. Track Mode (V-Series Only) When in Track Mode, the automatic transmission and steering function similar to Sport Mode. The accelerator pedal is adjusted to give maximum control during the highest level of spirited driving. The Magnetic Ride Control will be set to the optimum level for vehicle responsiveness. Performance Traction Management (PTM) can be accessed through this Through the center stack, the following vehicle systems may be available for customization in this mode. . Engine Sound: Stealth, Tour (Default), Sport, Track . Steering: Tour (default), Sport, Track . Suspension: Tour (default), Sport, Track . Brake Response: Tour (default), Sport, Track For information on the range of settings, see “Driver Mode Customization”. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING V-Mode (V-Series Only) V-Mode is used to personalize dynamic driving. This mode is designed to allow the driver to configure vehicle sub-systems to their own preference for maximum handling. V-Mode further enhances the drivers experience by adding a powertrain customization. Through the center stack, the following vehicle systems may be available for customization in this mode. . Engine Sound: Stealth, Tour, Sport (default), Track . Steering: Tour, Sport (default), Track . Suspension: Tour, Sport, (default), Track . Powertrain: Tour, Sport, (default), Track, Snow/Ice . PTM: OFF, WET, DRY, SPORT, RACE 1, RACE 2 . Brake Response: Tour, Sport, Track For information on the range of settings, see “Driver Mode Customization”. 227 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 228 DRIVING AND OPERATING Mode Selection Attributes Modes: TOUR Default SPORT TRACK SNOW/ICE Powertrain Tour Tour Track Snow/Ice Throttle Progression Tour Tour Track Snow/Ice Transmission Shift Mode Tour Sport Track Tour Engine Sound Tour Sport Track Tour Steering Tour Sport Track Tour Suspension (if equipped with Magnetic Ride Control) Tour Sport Track Tour Traction and Stability Control Tour Tour Track Tour Competitive Driving Mode (if equipped) Not Available Available Not Available Not Available Performance Traction Mode (if equipped) Not Available Not Available Available Not Available Tour Sport Track Tour Brake Response Throttle Progression Adjusts throttle sensitivity by selecting how quick or slow the throttle reacts to input. . Snow/Ice - The accelerator pedal Transmission Shift Mode reduces engine torque at small pedal inputs. This allows better wheel control on slippery surfaces. . Track - The accelerator pedal adjusts to give maximum control during the highest level of spirited driving. Sport or Track – Dynamic Performance Mode (DPM) allows the transmission to hold the current gear after a quick release of a heavily applied accelerator pedal. This provides greater engine braking and enhanced vehicle control without Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING using the paddles. DPM recognizes aggressive cornering, heavy braking, and high acceleration to select and hold lower gears when not using paddles. The shifts are also firmer to increase the quickness of shifting. Engine Sound Adjusts the volume of engine noise. The sound level changes when the variable exhaust valves open. . StabiliTrak/Electronic Stability Control (ESC) can be turned off by pressing and holding the TCS/ StabiliTrak button for five seconds. Brake Response Adjusts brake pedal sensitivity by selecting how quick or slow the brakes respond to input. Driver Mode Customization 229 Steering Steering adjusts the effort required to turn the steering wheel. The steering wheel offers better feedback in the Tour setting, but requires more effort in the Sport and Track settings. –Tour, Sport, Track Suspension Adjusts from a lighter steering feel in Tour Mode to reduced assist in Sport and Track Mode for more steering feel. The following settings can be changed using the Drive Mode Customization Menu. See “Settings>Vehicle>Drive Mode Customization” in the center stack to customize My Mode or V-Mode. Suspension adjusts the firmness of the suspension in the vehicle. Suspension adjusts the stiffness of the shocks and / or springs. The ride is more comfortable at lower settings and is stiffer at higher settings for better control. Magnetic Ride Control (If Equipped) Engine Sound –Tour, Sport, Track Adjusts the shock dampening firmness from a comfort in Tour Mode to an optimized responsiveness tune in Sport and Track. Engine sound adjusts the volume of engine noise. The settings range from quietest to loudest volume from Stealth through Track. Powertrain Stability Control . Competitive Mode allows less computer control to permit some slide and drift and is selected with the TCS/StabiliTrak button – only available in Sport Mode. –Stealth, Tour, Sport, Track Steering (Assist Effort) Powertrain adjusts the throttle response, gear shifting and engine performance. Throttle response increases in the Sport, Track, and Snow/Ice settings, and gear shifting is more aggressive. –Tour, Sport, Track, Snow/Ice Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 230 DRIVING AND OPERATING Brake Response Brake Response adjusts the brake pedal response. Settings range from a slower response for more comfortable driving to the quickest response for quicker deceleration. Brake pedal travel decreases and caliper pressure increases in the Sport and Track settings. –Tour, Sport, Track PTM (Performance Traction Management) PTM controls vehicle performance systems for professional handling on race tracks. Traction Control and Stability Control are reduced as you move through each of the settings. Changing PTM settings may also automatically change the other subsystem settings. See “Performance Traction Management” in Competitive Driving Mode 0 230. –Off, Wet, Dry, Sport, Race 1, Race 2 Competitive Driving Mode To select this optional handling mode, place the vehicle in Sport Mode and press Y two times and the DIC will display COMPETITIVE MODE ON. While in the Competitive Driving Mode, the traction off light i and StabiliTrak/ESC OFF light g will come on in the instrument cluster. TCS does not limit wheel spin, the Electronic Limited-Slip Differential (eLSD) allows increased vehicle agility, and more effort is required to turn the steering wheel. See “Limited-Slip Differential (V–Series Only)” later in this section. Adjust your driving accordingly. Press Y again, or turn the ignition to ACC/ACCESSORY and restart the vehicle, to turn TCS back on. The traction off light i and StabiliTrak/ ESC OFF light g will go out in the instrument cluster. Caution When traction control is turned off, or Competitive Driving Mode is active, it is possible to lose traction. Performance Traction Management (PTM) PTM can be activated through V-Mode customization or by pressing the ESC button twice while in Track Mode. To activate PTM through V-Mode customization, select the desired PTM state in the center stack (Vehicle>Settings>Drive Mode Customization>V-Mode). Press the V-Mode button once to activate V-Mode. When PTM is configured on, a message will appear in the Driver Information Center (DIC) “V Mode Active-Press Again for PTM On-ESC May be Disabled”. To confirm and enter PTM, press the V-Mode button again. the PTM state can now be modified using the mode knob or changing the V-Mode PTM settings in the center stack. Both the V-Mode and PTM indicators will be displayed. To exit PTM, press the ESC button. To cancel the PTM request and not enter PTM, press the center dismiss button on the steering wheel (V-Mode remains active). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Selecting PTM states may modify other V-Mode customization options. -Off, Wet, Dry, Sport, Race 1 Race 2 PTM 1 – WET . Intended for all driver skill levels. . Wet or damp conditions only — not intended for use in heavy rain or standing water. . StabiliTrak/ESC is on and engine power is reduced based on conditions. PTM 2 – DRY . For use by less experienced drivers or while learning a new track. . Dry conditions only. . StabiliTrak/ESC is on and engine power is slightly reduced. PTM 3 – SPORT . For use by drivers who are familiar with the track. . Dry conditions only. . Requires more driving skill than mode 2. . StabiliTrak/ESC is on and more engine power is available than in mode 2. PTM 4 – RACE 1 . For use by drivers who are familiar with the track. . Dry conditions only. . Requires more driving skill than modes 2 or 3. . StabiliTrak/ESC is off and available engine power is the same as mode 3. PTM 5 – RACE 2 . For use by experienced drivers who are familiar with the track. . Dry conditions only. . Requires more driving skill than in other modes. . StabiliTrak/ESC is off and engine power is available for maximum cornering speed. Press and release g to turn off PTM and return to the TCS and StabiliTrak/ ESC systems. The traction off light i and StabiliTrak Off light i will go out. 231 Launch Control If equipped, Launch Control is available within Competitive Driving Mode and Performance Traction Management (PTM) to allow high levels of vehicle acceleration in a straight line. Launch Control is a form of traction control that manages tire spin while launching the vehicle. This feature is intended for use during closed course race events where consistent zero to 60 and quarter mile times are desirable. Launch Control is only available when the following criteria are met: . Competitive Driving Mode is selected or any of the Performance Traction Management modes are selected. The traction off light comes on in the instrument cluster and the appropriate Driver Information Center (DIC) message displays. . The vehicle is not moving. . The steering wheel is pointing straight. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 232 DRIVING AND OPERATING Automatic Transmissions . The brake pedal is firmly pressed to the floor, equivalent to a panic brake event. . The accelerator pedal is rapidly applied to wide open throttle. If the vehicle rolls due to wide open throttle, release the throttle, press the brake pedal more firmly, and re-apply the accelerator to wide open throttle. Launch Control will initially limit engine speed as you rapidly apply the accelerator pedal to wide open throttle. Allow the engine rpm to stabilize. A smooth, quick release of the brake pedal, while maintaining the fully pressed accelerator pedal, will manage wheel slip. After the vehicle is launched, the system continues in Competitive Driving Mode or PTM. Competitive Driving Mode, PTM, and Launch Control are systems designed for a closed course race track and not intended for public roads. The systems are not intended to compensate for lack of driver experience or familiarity with the race track. Limited-Slip Differential If equipped, the Electronic Limited-Slip Differential (eLSD) is automatically activated. eLSD actively monitors vehicle sensors and driver inputs to determine the amount of change for the conditions. With eLSD, the vehicle has: . Enhanced high-speed control. . Improved traction through corners, allowing more acceleration. . More precise steering. . Increased vehicle agility. . Integration with StabiliTrak/ Electronic Stability Control (ESC). For vehicles with eLSD, driven under severe conditions, the rear axle fluid should be changed. See Competitive Driving Mode 0 230 and Maintenance Schedule 0 329. Cruise Control { Warning Cruise control can be dangerous where you cannot drive safely at a steady speed. Do not use cruise control on winding roads or in heavy traffic. Cruise control can be dangerous on slippery roads. On such roads, fast changes in tire traction can cause excessive wheel slip, and you could lose control. Do not use cruise control on slippery roads. With cruise control, a speed of about 40 km/h (25 mph) or more can be maintained without keeping your foot on the accelerator. Cruise control does not work at speeds below about 40 km/h (25 mph). If the Traction Control/StabiliTrak/ Electronic Stability Control (ESC) system begins to limit wheel spin while using cruise control, the cruise control automatically disengages. See Traction Control/Electronic Stability Control 0 223. If a collision alert Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING occurs when cruise control is activated, cruise control is disengaged. See Forward Collision Alert (FCA) System 0 251. When road conditions allow cruise control to be safely used, it can be turned back on. Cruise control will disengage if either TCS or StabiliTrak/ESC is turned off. If the brakes are applied, cruise control disengages. RES+ : If there is a set speed in memory, press briefly to resume to that speed or press and hold to accelerate. If the cruise control is already active, use to increase vehicle speed. To increase speed by 1 km/h (1 mph), press RES+ to the first detent. To increase speed to the next 5 km/h (5 mph) mark on the speedometer, press RES+ to the second detent. SET− : Press briefly to set the speed and activate cruise control. If the cruise control is already active, use to decrease vehicle speed. To decrease speed by 1 km/h (1 mph), press SET− to the first detent. To decrease speed to the next 5 km/h (5 mph) mark on the speedometer, press SET− to the second detent. * : Press to disengage cruise control without erasing the set speed from memory. J : Press to turn the system on and off. A white indicator appears in the instrument cluster when cruise is turned on. 233 Setting Cruise Control If J is on when not in use, SET− or RES+ could get pressed and go into cruise when not desired. Keep J off when cruise is not being used. 1. Press J. 2. Get up to the desired speed. 3. Press and release SET−. The desired set speed briefly appears in the instrument cluster. 4. Remove your foot from the accelerator. When the cruise control has been set to the desired speed, a green cruise control indicator appears on the instrument cluster and a cruise set speed message appears on the Head-Up Display (HUD), if equipped. Resuming a Set Speed If the cruise control is set at a desired speed and then the brakes are applied or * is pressed, the cruise control is disengaged without erasing the set speed from memory. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 234 DRIVING AND OPERATING Once the vehicle speed reaches about 40 km/h (25 mph) or more, press RES+ briefly. The vehicle returns to the previous set speed. Increasing Speed While Using Cruise Control If the cruise control system is already activated: . Press and hold RES+ until the desired speed is reached, then release it. . To increase vehicle speed in small increments, briefly press RES+ to the first detent. For each press, the vehicle goes about 1 km/h (1 mph) faster. . To increase vehicle speed in larger increments, briefly press RES+ to the second detent. For each press, the vehicle speed increases to the next 5 km/h (5 mph) mark on the speedometer. The speedometer reading can be displayed in either English or metric units. See Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. The increment value used depends on the units displayed. Instrument Cluster (Uplevel) 0 90. The increment value used depends on the units displayed. Reducing Speed While Using Cruise Control Passing Another Vehicle While Using Cruise Control If the cruise control system is already activated: . Press and hold SET− until the desired lower speed is reached, then release it. . To decrease the vehicle speed in small increments, briefly press SET− to the first detent. For each press, the vehicle goes about 1 km/h (1 mph) slower. . To decrease the vehicle speed in larger increments, briefly press SET− to the second detent. For each press, the vehicle speed decreases to the next 5 km/h (5 mph) mark on the speedometer. Use the accelerator pedal to increase the vehicle speed. When you take your foot off the pedal, the vehicle will slow down to the previous set cruise speed. The cruise control system may automatically brake to slow the vehicle down. The speedometer reading can be displayed in either English or metric units. See Instrument Cluster (Base Level) 0 88 or While pressing the accelerator pedal or shortly following the release to override cruise, briefly applying SET− will result in cruise set to the current vehicle speed. Using Cruise Control on Hills How well the cruise control will work on hills depends upon the vehicle speed, load, and the steepness of the hills. When going up steep hills, you might have to step on the accelerator pedal to maintain your speed. When going downhill, the cruise control system may automatically brake to slow the vehicle down. Also, you may have to brake or shift to a lower gear to keep your speed down. If the brake pedal is applied, cruise control disengages. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Ending Cruise Control There are four ways to end cruise control: . Step lightly on the brake pedal. . Press *. . Shift the transmission to N (Neutral). . Press J. Erasing Speed Memory The cruise control set speed is erased from memory if J is pressed or if the ignition is turned off. Adaptive Cruise Control (Advanced) If equipped, Adaptive Cruise Control (ACC) allows the cruise control set speed and following gap to be selected. Read this entire section before using this system. The following gap is the following time between your vehicle and a vehicle detected directly ahead in your path, moving in the same direction. If no vehicle is detected in your path, ACC works like regular cruise control. ACC uses camera and radar sensors. If a vehicle is detected in your path, ACC can speed up the vehicle or apply limited, moderate braking to maintain the selected following gap. To disengage ACC, apply the brake. If the Traction Control System (TCS) or StabiliTrak/Electronic Stability Control (ESC) system activates while ACC is engaged, ACC may automatically disengage. See Traction Control/ Electronic Stability Control 0 223. When road conditions allow ACC to be safely used, ACC can be turned back on. ACC will not engage if the TCS or StabiliTrak/ESC electronic stability control system is disabled. ACC can reduce the need for you to frequently brake and accelerate, especially when used on expressways, freeways, and interstate highways. When used on other roads, you may need to take over the control of braking or acceleration more often. { Warning ACC has limited braking ability and may not have time to slow the vehicle down enough to avoid a (Continued) 235 Warning (Continued) collision with another vehicle you are following. This can occur when vehicles suddenly slow or stop ahead, or enter your lane. Also see “Alerting the Driver” in this section. Complete attention is always required while driving and you should be ready to take action and apply the brakes. See Defensive Driving 0 190. { Warning ACC will not detect or brake for children, pedestrians, animals, or other objects. Do not use ACC when: . On winding and hilly roads or when the sensors are blocked by snow, ice, or dirt. The system may not detect a vehicle ahead. Keep the entire front of the vehicle clean. (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 236 DRIVING AND OPERATING Warning (Continued) . Visibility is low, such as in fog, rain, or snow conditions. ACC performance is limited under these conditions. . On slippery roads where fast changes in tire traction can cause excessive wheel slip. engaged. To increase speed by 1 km/h (1 mph), press RES+ to the first detent. To increase speed to the next 5 km/h (5 mph) mark on the speedometer, press RES+ to the second detent. SET– : Press briefly to set the speed and activate ACC or to decrease vehicle speed if ACC is already engaged. To decrease speed by 1 km/h (1 mph), press SET− to the first detent. To decrease speed to the next 5 km/h (5 mph) mark on the speedometer, press SET− to the second detent. * : Press to disengage ACC without erasing the selected set speed. [ : Press to select a following gap time (or distance) setting for ACC of Far, Medium, or Near. J : Press to turn the system on or off. The indicator turns white on the instrument cluster when ACC is turned on. RES+ : Press briefly to resume the previous set speed or to increase vehicle speed if ACC is already The speedometer reading can be displayed in either English or metric units. See Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. The increment value used depends on the units displayed. Switching Between ACC and Regular Cruise Control To switch between ACC and regular cruise control, press and hold *. A Driver Information Display (DIC) message displays. See Vehicle Messages 0 113. ACC Indicator Regular Cruise Control Indicator When ACC is engaged, a green o indicator will be lit on the instrument cluster. When the regular cruise control is engaged, a green J indicator will be lit on the instrument cluster; the following gap will not display. When the vehicle is turned on, the cruise control mode will be set to the last mode used before the vehicle was turned off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING { Warning Always check the cruise control indicator on the instrument cluster to determine which mode cruise control is in before using the feature. If ACC is not active, the vehicle will not automatically brake for other vehicles, which could cause a crash if the brakes are not applied manually. You and others could be seriously injured or killed. Setting Adaptive Cruise Control If o is on when not in use, SET-/RES + could be pressed by mistake and activate ACC when not desired. Keep o off when cruise is not being used. Select the set speed desired for ACC. This is the vehicle speed when no vehicle is detected in its path. While the vehicle is moving, ACC will not set at a speed less than 5 km/h (3 mph), although it can be resumed. The minimum allowable set speed is 25 km/h (15 mph). To set ACC while moving: 1. 2. 3. 4. Press [. Get up to the desired speed. Press and release SET−. Remove your foot from the accelerator. After ACC is set, it may immediately apply the brakes if a vehicle ahead is detected closer than the selected following gap. ACC can also be set while the vehicle is stopped if ACC is on and the brake pedal is applied. The ACC indicator displays on the instrument cluster and Head-Up Display (HUD), if equipped. When ACC is turned on, the indicator will be lit white. When ACC is engaged, the indicator will turn green. Be mindful of speed limits, surrounding traffic speeds, and weather conditions when selecting the set speed. 237 Resuming a Set Speed If ACC is set at a desired speed and then the brakes are applied, ACC is disengaged without erasing the set speed from memory. To begin using ACC again, press RES+ up briefly while moving more than 5 kph (3 mph). The vehicle returns to the previous set speed. If the vehicle is stopped with the brake pedal applied, press RES+ and release the brake pedal. ACC will hold the vehicle until RES+ or the accelerator pedal is pressed. A green ACC indicator and the set speed display on the instrument cluster. The vehicle ahead indicator may be flashing if a vehicle ahead was present and moved. See “Approaching and Following a Vehicle” later in this section. Once ACC has resumed, if there is no vehicle ahead, if the vehicle ahead is beyond the selected following gap, or if the vehicle has exited a sharp curve, then the vehicle speed will increase to the set speed. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 238 DRIVING AND OPERATING Increasing Speed While ACC Is at a Set Speed If ACC is already activated, do one of the following: . Use the accelerator to get to the higher speed. Press SET– . Release the control and the accelerator pedal. The vehicle will now cruise at the higher speed. When the accelerator pedal is pressed, ACC will not brake because it is overridden. The ACC indicator will turn blue on the instrument panel and heads up display, if equipped . Press and hold RES+ until the desired set speed is displayed, then release it. . To increase speed in smaller increments, press RES+ to the first detent. For each press, the vehicle goes 1 km/h (1 mph) faster. . To increase speed in larger increments, press RES+ to the second detent. For each press, the vehicle speed increases to the next 5 km/h (5 mph) mark on the speedometer. The set speed can also be increased while the vehicle is stopped. . If stopped with the brake applied, press RES+ until the desired set speed is displayed. . If ACC is holding the vehicle at a stop and there is another vehicle directly ahead, pressing RES+ will increase the set speed. . Pressing RES+ when there is no longer a vehicle ahead or the vehicle ahead is pulling away and the brake is not applied will cause the ACC to resume. When it is determined there is no vehicle ahead or the vehicle ahead is beyond the selected following gap, then the vehicle speed will increase to the set speed. The speedometer reading can be displayed in either English or metric units. See Instrument Cluster (Base Level) 0 88 or Instrument Cluster (Uplevel) 0 90. The increment value used depends on the units displayed. Reducing Speed While ACC Is at a Set Speed If ACC is already activated, do one of the following: . Use the brake to get to the desired lower speed. Release the brake and press SET−. The vehicle will now cruise at the lower speed. . Press and hold SET− until the desired lower speed is displayed, then release it. . To decrease speed in smaller increments, press SET− to the first detent. For each press, the vehicle goes about 1 km/h (1 mph) slower. . To decrease speed in larger increments, press or hold SET− to the second detent. For each press, the vehicle speed decreases to the next 5 km/h (5 mph) mark on the speedometer. The set speed can also be decreased while the vehicle is stopped. . To decrease speed while the vehicle is stopped, press SET− until the desired set speed is displayed. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Selecting the Follow Distance Gap When a slower moving vehicle is detected ahead within the selected following gap, ACC will adjust the vehicle's speed and attempt to maintain the follow distance gap selected. Changing the gap setting automatically changes the alert timing sensitivity (Far, Medium, or Near) for the Forward Collision Alert (FCA) feature. See Forward Collision Alert (FCA) System 0 251. Since each gap setting corresponds to a following time (Far, Medium, or Near), the following distance will vary based on vehicle speed. The faster the vehicle speed, the further back your vehicle will follow a vehicle detected ahead. Consider traffic and weather conditions when selecting the following gap. The range of selectable gaps may not be appropriate for all drivers and driving conditions. Approaching and Following a Vehicle Alerting the Driver Press [ on the steering wheel to adjust the following gap. Each press cycles the gap button through three settings: Far, Medium, or Near. When pressed, the current gap setting displays briefly on the instrument cluster and HUD (if equipped). The gap setting will be maintained until it is changed. 239 The vehicle ahead indicator is in the instrument cluster and HUD display, if equipped. If ACC is engaged, driver action may be required when ACC cannot apply sufficient braking because of approaching a vehicle too rapidly. When this condition occurs, the collision alert symbol will flash on the windshield. Either eight beeps will sound from the front, or both sides of the Safety Alert Seat will pulse five times. See “Collision/Detection Systems” under Vehicle Personalization 0 114. See Defensive Driving 0 190. The vehicle ahead indicator only displays when a vehicle is detected in your vehicle’s path moving in the same direction. If this symbol is not displaying, ACC will not respond to or brake to vehicles ahead. ACC automatically slows the vehicle down and adjusts vehicle speed to follow a detected vehicle ahead at the selected follow gap. The vehicle speed increases or decreases to follow a detected vehicle in front of your vehicle when that vehicle is traveling slower than your vehicle set speed. It may apply limited braking, if necessary. When braking is active, Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 240 DRIVING AND OPERATING the brake lamps will come on. The automatic braking may feel or sound different than if the brakes were applied manually. This is normal. Passing a Vehicle While Using ACC If the set speed is high enough, and the left turn signal is used to pass a vehicle ahead in the selected following gap, ACC may assist by gradually accelerating the vehicle prior to the lane change. { Warning When using ACC to pass a vehicle or perform a lane change, the following distance to the vehicle being passed may be reduced. ACC may not apply sufficient acceleration or braking when passing a vehicle or performing a lane change. Always be ready to manually accelerate or brake to complete the pass or lane change. Stationary or Very Slow-Moving Objects . Objects that are close to the front of your vehicle. { Warning ACC may not detect and react to stopped or slow-moving vehicles ahead of you. For example, the system may not brake for a vehicle it has never detected moving. This can occur in stop-and-go traffic or when a vehicle suddenly appears due to a vehicle ahead changing lanes. Your vehicle may not stop and could cause a crash. Use caution when using ACC. Your complete attention is always required while driving and you should be ready to take action and apply the brakes. Irregular Objects Affecting ACC ACC may have difficulty detecting the following objects: . Vehicles with cargo extending from the back end. . Non-standard shaped vehicles, such as vehicle transport, vehicles with a side car fitted, or horse carriages. ACC Automatically Disengages ACC may automatically disengage and you will need to manually apply the brakes to slow the vehicle when: . The sensors are blocked. . The Traction Control System (TCS) or StabiliTrak/ESC system has activated or been disabled. . There is a fault in the system. . The radar falsely reports blockage when driving in a desert or remote area with no other vehicles or roadside objects. A DIC message may display to indicate that ACC is temporarily unavailable. The ACC indicator will turn white when ACC is no longer active. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING In some cases, when ACC will not activate, regular Cruise Control may be used. See “Switching Between ACC and Regular Cruise Control” previously in this section. Always consider driving conditions before using either cruise control system. driver seat belt is unbuckled, the ACC automatically applies the Electric Parking Brake (EPB) to hold the vehicle. The EPB status light will turn on. See Electric Parking Brake 0 221. To release the EPB, press the accelerator pedal. Notification to Resume ACC A DIC warning message may display indicating to shift to P (Park) before exiting the vehicle. ACC will maintain a follow gap behind a detected vehicle and slow your vehicle to a stop behind that vehicle. If the stopped vehicle ahead has driven away and ACC has not resumed, the vehicle ahead indicator will flash as a reminder to check traffic ahead before proceeding. In addition, the left and right sides of the Safety Alert Seat will pulse three times, or three beeps will sound. See “Alert Type” and “Adaptive Cruise Go Notifier” in “Collision/Detection Systems” under Vehicle Personalization 0 114. When the vehicle ahead drives away, ACC resumes automatically if the stop was brief. If necessary, press RES+ or the accelerator pedal to resume ACC. If stopped for more than two minutes or if the driver door is opened and the { Warning If ACC has stopped the vehicle, and if ACC is disengaged, turned off, or canceled, the vehicle will no longer be held at a stop. The vehicle can move. When ACC is holding the vehicle at a stop, always be prepared to manually apply the brakes. { Warning Leaving the vehicle without placing it in P (Park) can be dangerous. Do not leave the vehicle while it is being held at a stop by ACC. Always (Continued) 241 Warning (Continued) place the vehicle in P (Park) and turn off the ignition before leaving the vehicle. ACC Override If using the accelerator pedal while ACC is active, the ACC indicator turns blue on the instrument cluster and in the HUD (if equipped) to indicate that automatic braking will not occur. ACC will resume operation when the accelerator pedal is not being pressed. { Warning The ACC will not automatically apply the brakes if your foot is resting on the accelerator pedal. You could crash into a vehicle ahead of you. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 242 DRIVING AND OPERATING Curves in the Road { Warning ACC may operate differently in a sharp curve. It may reduce the vehicle speed if the curve is too sharp. On curves, ACC may not detect a vehicle ahead in your lane. You could be startled if the vehicle accelerates up to the set speed, especially when following a vehicle exiting or entering exit ramps. You could lose control of the vehicle or crash. Do not use ACC while driving on an entrance or exit ramp. Always be ready to use the brakes if necessary. ACC automatically slows the vehicle down while navigating the curve and may increase speed out of the curve, but will not exceed the set speed. { Warning When following a vehicle and entering a curve, ACC may not detect the vehicle ahead and accelerate to the set speed. When this happens, the vehicle ahead indicator will not appear. On curves, ACC may respond to a vehicle in another lane, or may not have time to react to a vehicle in your lane. You could crash into a vehicle ahead of you, or lose control of your vehicle. Give extra attention in curves and be ready to use the brakes if necessary. Select an appropriate speed while driving in curves. ACC may detect a vehicle that is not in your lane and apply the brakes. ACC may occasionally provide an alert and/or braking that is considered unnecessary. It could respond to vehicles in different lanes, signs, guardrails, and other stationary objects when entering or exiting a curve. This is normal operation. The vehicle does not need service. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Other Vehicle Lane Changes Driving in Narrow Lanes Erasing Speed Memory Vehicles in adjacent traffic lanes or roadside objects may be incorrectly detected when located along the roadway. The ACC set speed is erased from memory if J is pressed or if the ignition is turned off. Do Not Use ACC on Hills and When Towing a Trailer Weather Conditions Affecting ACC System operation may be limited under snow, heavy rain, or road spray conditions. Conditions that are associated with low visibility, such as fog, rain, snow, or road spray, may limit ACC performance. Water droplets from rain or snow that remain on the windshield may also limit ACC’s ability to detect objects. ACC will not detect a vehicle ahead until it is completely in the lane. The brakes may need to be manually applied. Objects Not Directly in Front of Your Vehicle The detection of objects in front of the vehicle may not be possible if: . The vehicle or object ahead is not within your lane. . The vehicle ahead is shifted, not centered, or is shifted to one side of the lane. 243 Do not use ACC when driving on steep hills or when towing a trailer. ACC will not detect a vehicle in the lane while driving on steep hills. If the brakes are applied, ACC disengages. Accessory Installations and Vehicle Modifications Disengaging ACC Do not install or place any object around the front camera windshield area that would obstruct the front camera view. There are three ways to disengage ACC: . Step lightly on the brake pedal. . Press *. Do not install objects on top of the vehicle that overhang and obstruct the front camera, such as a canoe, kayak, or other items that can be transported on the vehicle roof. . Press J. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 244 DRIVING AND OPERATING Do not modify the hood, headlamps, or fog lamps, as this may limit the camera’s ability to detect an object. Driver Assistance Systems Cleaning the Sensing System This vehicle may have features that work together to help avoid crashes or reduce crash damage while driving, backing, and parking. Read this entire section before using these systems. The camera sensor on the windshield behind the rearview mirror and the radar sensors on the front of the vehicle can become blocked by snow, ice, dirt, or mud. These areas need to be cleaned for ACC to operate properly. If ACC will not operate, regular Cruise Control may be available. See “Switching Between ACC and Regular Cruise Control” previously in this section. Always consider driving conditions before using either cruise control system. For cleaning instructions, see “Washing the Vehicle” under Exterior Care 0 319. System operation may also be limited under snow, heavy rain, or road spray conditions. Warning (Continued) . Detect vehicles or objects outside . . { Warning . Do not rely on the Driver Assistance Systems. These systems do not replace the need for paying attention and driving safely. You may not hear or feel alerts or warnings provided by these systems. Failure to use proper care when driving may result in injury, death, or vehicle damage. See Defensive Driving 0 190. . Under many conditions, these systems will not: . Detect children, pedestrians, bicyclists, or animals. (Continued) . . . the area monitored by the system. Work at all driving speeds. Warn you or provide you with enough time to avoid a crash. Work under poor visibility or bad weather conditions. Work if the detection sensor is not cleaned or is covered by ice, snow, mud, or dirt. Work if the detection sensor is covered up, such as with a sticker, magnet, or metal plate. Work if the detection sensor viewing zone is interrupted by an installed accessory, such as a bike rack, or hitch mounted cargo carrier. Work if the area surrounding the detection sensor is damaged or not properly repaired. (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING . Front side and rear side panels . Outside of the windshield in front of Warning (Continued) the rearview mirror Complete attention is always required while driving, and you should be ready to take action and apply the brakes and/or steer the vehicle to avoid crashes. . Side camera lens on the bottom of the outside mirrors . Rear side corner bumpers . Rear Vision Camera above the license plate Audible or Safety Alert Seat Assistance Systems for Parking or Backing Some driver assistance features alert the driver of obstacles by beeping. To change the volume of the warning chime, see “Comfort and Convenience” under Vehicle Personalization 0 114. If equipped, the Rear Vision Camera (RVC), Rear Park Assist (RPA), Front Park Assist (FPA), Backing Warning and Reverse Automatic Braking (RAB), and Rear Cross Traffic Alert (RCTA) may help the driver park or avoid objects. Always check around the vehicle when parking or backing. If equipped with the Safety Alert Seat, the driver seat cushion may provide a vibrating pulse alert instead of beeping. To change this, see “Collision/Detection Systems” under Vehicle Personalization 0 114. Rear Vision Camera (RVC) Cleaning Depending on vehicle options, keep these areas of the vehicle clean to ensure the best driver assistance feature performance. Driver Information Center (DIC) messages may display when the systems are unavailable or blocked. 245 . Front and rear bumpers and the area below the bumpers . Front grille and headlamps . Front camera lens in the front grille or near the front emblem When the vehicle is shifted into R (Reverse), the RVC displays an image of the area behind the vehicle in the infotainment display. The previous screen displays when the vehicle is shifted out of R (Reverse) after a short delay. To return to the previous screen sooner, press Home or Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 246 DRIVING AND OPERATING Back on the infotainment system, shift into P (Park), or, while in D (Drive), reach a vehicle speed of approximately 12 km/h (8 mph). Displayed images may be farther or closer than they appear. The area displayed is limited and objects that are close to either corner of the bumper or under the bumper do not display. Camera Views A warning triangle may display to show that RPA or RCTA has detected an object. This triangle changes from amber to red and increases in size the closer the object. { Warning 1. View Displayed by the Camera 1. View Displayed by the Camera 2. Corners of the Rear Bumper The camera(s) do not display children, pedestrians, bicyclists, crossing traffic, animals, or any other object outside of the cameras’ field of view, below the bumper, or under the vehicle. Shown distances may be different from actual distances. Do not drive or park the vehicle using only these camera(s). Always check behind and around the vehicle before driving. Failure to use proper care may result in injury, death, or vehicle damage. Touch the camera view buttons along the bottom of the infotainment display. Front/Rear Standard View : Displays an image of the area in front or behind the vehicle. Touch Front/Rear Standard View on the infotainment display when a camera view is active. Touching the button multiple times will toggle between front and rear camera views. If equipped, the front view camera also displays when the Park Assist system detects an object within 30 cm (12 in). Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Front/Rear Junction View : Displays a front or rear cross traffic view that shows objects directly to the left and right of the front or back of the vehicle. Touch Junction View on the infotainment display when a camera view is active. Touching the button multiple times will toggle between front and rear camera views. Touching the button multiple times will toggle between forward and rearward views. Rear Pedestrian Alert, Park Assist, and RCTA are not available when Side Forward/Rearward view is active. Front/Rear Overhead View : Displays a front or rear overhead view of the vehicle. Touching the button will toggle between the two views. Top Down View : Displays an image of the area surrounding the vehicle, along with other views in the infotainment display. Top Down can be enabled or disabled by pressing the Top Down View button multiple times. Front/Rear Bowl View : Displays a view of the vehicle from either the front or the back of the vehicle. Touch Bowl View on the infotainment display when a camera view is active. Touching the button multiple times will toggle between forward and rearward views. Rear Pedestrian Alert, Park Assist, and RCTA are not available when Bowl view is active. Side Forward/Rearward View : Displays a view that shows objects next to the front or rear sides of the vehicle. Touch Side Forward/Rearward View on the infotainment display when a camera view is active. Guidance Lines : Displays available guidelines. The horizontal markings represent distance from the vehicle. Park Assist The vehicle may be equipped with the Rear Park Assist (RPA) and Front Park Assist (FPA). The Park Assist system may provide assistance to driver when backing up and parking. Park Assist uses ultrasonic sensors in the bumpers to measure the distance between the vehicle and objects. The system calculates the distance between vehicle and object via measuring the time it takes for the ultrasonic waves to bounce back from 247 the object. Park Assist works only at speeds up to about 11 km/h (7 mph). An illuminated LED in the parking assist button indicates that the system is ready to operate. The sensors on the bumpers may detect objects up to 1.8 m (6 ft) behind and 1.25 m (4 ft) in front of the vehicle within a zone 25 cm (10 in) high off the ground and below bumper level. These detection distances may be shorter during warmer or humid weather. Blocked sensors will not detect objects and can also cause false detections. Keep the sensors clean of mud, dirt, snow, ice, and slush; and clean sensors after a car wash in freezing temperatures. { Warning The Park Assist System is no substitute for careful and attentive driving. The Park Assist system does not detect children, pedestrians, bicyclists, animals, or objects located below the bumper or that are too close or too far from the vehicle. It is not (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 248 DRIVING AND OPERATING Warning (Continued) available at speeds greater than 11 km/h (7 mph). To prevent injury, death, or vehicle damage, even with Park Assist, always check the area around the vehicle and check all mirrors before moving forward or backing. When an object is very close to the vehicle rear (<0.6 m (2 ft)), five beeps will sound from the rear followed by a continuous beep from the rear, or both sides of the Safety Alert Seat will pulse five times. When an object is very close to the vehicle front (<0.3 m (1 ft)), a continuous beep will sound from the front, or both sides of the Safety Alert Seat will pulse five times. Beeps for FPA are higher pitched than for RPA. When the System Does Not Seem to Work Properly The following messages may be displayed on the DIC: How the System Works The instrument cluster may have a Park Assist display with bars that show “distance to object,” driving direction, and object location information for the Park Assist system. As the object gets closer, more bars light up and the bars change color from yellow to amber to red. SERVICE PARKING ASSIST : If this message occurs, check the following conditions: . The sensors are not clean. Keep the vehicle's rear bumper free of mud, dirt, snow, ice, and slush. For cleaning instructions, see Exterior Care 0 319. . The Park Assist sensors are covered by frost or ice. Frost or ice can form around and behind the sensors and may not always be seen; this can occur after washing the vehicle in cold weather. The message may not clear until the frost or ice has melted. If the above conditions do not exist, take the vehicle to your dealer to repair the system. PARK ASSIST OFF : If the PA system does not activate due to a temporary condition, the message displays on the DIC. This can occur under the following conditions: . The driver has disabled the system. . An object was hanging out of the trunk during the last drive cycle. Once the object is removed, RPA will return to normal operation. . The bumper is damaged. Take the vehicle to your dealer to repair the system. . Other conditions, such as vibrations from a jackhammer or the compression of air brakes on a very large truck, are affecting system performance. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Backing Warning and Reverse Automatic Braking Vehicles with Adaptive Cruise Control (ACC) have the Backing Warning System and Reverse Automatic Braking (RAB) system. The Backing Warning part of this system can warn of rear objects when backing up at speeds greater than 8 km/h (5 mph), and RAB may automatically brake hard at speeds between 1–32 km/h (0.5–20 mph). The Backing Warning System will beep once from the rear when an object is first detected, or pulse twice on both sides of the Safety Alert Seat. When the system detects a potential crash, beeps will be heard from the rear, or five pulses will be felt on both sides of the Safety Alert Seat. There may also be a brief, sharp application of the brakes. { Warning The Backing Warning System only operates at speeds greater than 8 km/h (5 mph). It does not detect children, pedestrians, bicyclists, (Continued) 249 Warning (Continued) { Warning animals, or objects below the bumper or that are too close or too far from the vehicle. In some situations, such as at higher backing speeds, there may not be enough time for the short, sharp application of the vehicle brake system to occur. To prevent injury, death, or vehicle damage, even with the Backing Warning System, always check the area around the vehicle and check all mirrors before backing. RAB may not avoid many types of backing crashes. Do not wait for the automatic braking to apply. This system is not designed to replace driver braking and only works in R (Reverse) when an object is detected directly behind the vehicle. It may not brake or stop in time to avoid a crash. It will not brake for objects when the vehicle is moving at very low speeds. It does not detect children, pedestrians, bicyclists, animals, or objects below the bumper or that are too close or too far from the vehicle. To prevent injury, death, or vehicle damage, even with RAB, always check the area around the vehicle before and while backing. When the vehicle is in R (Reverse) and the system detects the vehicle is backing too fast to avoid a crash with a detected object behind your vehicle in your path, it may automatically brake hard to a stop to help avoid or reduce the harm caused by a backing crash. If the brake pedal is not pressed soon after the stop, the Electric Parking Brake (EPB) may be set. When it is safe, press the accelerator pedal firmly at any time to override RAB. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 250 DRIVING AND OPERATING { Warning There may be instances where unexpected or undesired automatic braking occurs. If this happens, either press the brake pedal or firmly press the accelerator pedal to release the brakes from the RAB system. Before releasing the brakes, check the RVC and check the area around the vehicle to make sure it is safe to proceed. Rear Cross Traffic Alert (RCTA) If equipped, RCTA displays a red warning triangle with a left or right pointing arrow to warn of traffic coming from the left or right. This system detects objects coming from up to 20 m (65 ft) from the left or right side of the vehicle. When an object is detected, either three beeps sound from the left or right or three Safety Alert Seat pulses occur on the left or right side, depending on the direction of the detected vehicle. Use caution while backing up when towing a trailer, as the RCTA detection zones that extend out from the back of the vehicle do not move further back when a trailer is towed. Turning the Features On or Off Touch X on the center stack to turn on or off the Front and Rear Park Assist, Reverse Automatic Braking (RAB), and the Backing Warning System at the same time. The indicator light next to the button comes on when the features are on and turns off when the features have been disabled. Rear Pedestrian Alert Under certain conditions, this feature can provide alerts for a pedestrian within the system’s range directly behind the vehicle. This feature only works in R (Reverse) below 12 km/h (8 mph), and detects pedestrians up to 8 m (26 ft) away during daytime driving. During nighttime driving, feature performance is very limited. Turn off Park Assist, RCTA, and RAB when towing a trailer. Rear Pedestrian Alert Indicator To turn the RPA symbols or guidance lines (on some models) on or off, see “Rear Camera Park Assist Symbols” under Vehicle Personalization 0 114. When a pedestrian is detected within the system’s range directly behind the vehicle, this symbol flashes amber on the infotainment display, along with two beeps from the rear, or if equipped, two pulses from both sides of the driver seat. When a pedestrian is detected close to the vehicle, the symbol flashes red on the infotainment display, along with seven RCTA can also be turned on or off through vehicle personalization. See “Collision/Detection Systems” under Vehicle Personalization 0 114. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING beeps from the rear, or if equipped, seven pulses from both sides of the driver seat. { Warning Rear Pedestrian Alert does not automatically brake the vehicle. It also does not provide an alert unless it detects a pedestrian, and it may not detect all pedestrians if: . The pedestrian is not directly . . . . . . behind the vehicle, fully visible to the Rear Vision Camera (RVC), or standing upright. The pedestrian is part of a group. The pedestrian is a child. Visibility is poor, including nighttime conditions, fog, rain, or snow. The RVC is blocked by dirt, snow, or ice. The RVC, taillamps, or back-up lamps are not cleaned or in proper working condition. The vehicle is not in R (Reverse). (Continued) Warning (Continued) To help avoid death or injury, always check for pedestrians around the vehicle before backing up. Be ready to take action and apply the brakes. See Defensive Driving 0 190. Keep the RVC, taillamps, and back-up lamps clean and in good repair. Rear Pedestrian Alert can be set to Off or Alert. See “Rear Pedestrian Detection” in “Collision/Detection Systems” under Vehicle Personalization 0 114. If equipped, alerts can be set to beeps or seat pulses. See “Alert Type” in “Collision/Detection Systems” under Vehicle Personalization 0 114. Assistance Systems for Driving If equipped, when driving the vehicle in a forward gear, Forward Collision Alert (FCA), Lane Keep Assist (LKA), Side Blind Zone Alert (SBZA), Lane Change Alert (LCA), Automatic Emergency Braking (AEB), and/or the 251 Front Pedestrian Braking (FPB) System can help to avoid a crash or reduce crash damage. Forward Collision Alert (FCA) System The FCA system may help to avoid or reduce the harm caused by front-end crashes. When approaching a vehicle ahead too quickly, FCA provides a red flashing alert on the windshield and rapidly beeps or pulses the driver seat. FCA also lights an amber visual alert if following another vehicle too closely. FCA detects vehicles within a distance of approximately 60 m (197 ft) and operates at speeds above 8 km/h (5 mph). If the vehicle has Adaptive Cruise Control (ACC), it can detect vehicles to distances of approximately 110 m (360 ft) and operates at all speeds. See Adaptive Cruise Control (Advanced) 0 235. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 252 DRIVING AND OPERATING { Warning FCA is a warning system and does not apply the brakes. When approaching a slower-moving or stopped vehicle ahead too rapidly, or when following a vehicle too closely, FCA may not provide a warning with enough time to help avoid a crash. It also may not provide any warning at all. FCA does not warn of pedestrians, animals, signs, guardrails, bridges, construction barrels, or other objects. Be ready to take action and apply the brakes. See Defensive Driving 0 190. FCA can be disabled through vehicle personalization. See "Collision/ Detection Systems" under Vehicle Personalization 0 114. Detecting the Vehicle Ahead FCA warnings will not occur unless the FCA system detects a vehicle ahead. When a vehicle is detected, the vehicle ahead indicator will display green. Vehicles may not be detected on curves, highway exit ramps, or hills, due to poor visibility; or if a vehicle ahead is partially blocked by pedestrians or other objects. FCA will not detect another vehicle ahead until it is completely in the driving lane. Warning (Continued) or hilly roads, or in conditions that can limit visibility such as fog, rain, or snow, or if the headlamps or windshield are not cleaned or in proper condition. Keep the windshield, headlamps, and FCA sensors clean and in good repair. Collision Alert With Head-Up Display { Warning FCA does not provide a warning to help avoid a crash, unless it detects a vehicle. FCA may not detect a vehicle ahead if the FCA sensor is blocked by dirt, snow, or ice, or if the windshield is damaged. It may also not detect a vehicle on winding (Continued) Without Head-Up Display Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING When your vehicle approaches another detected vehicle too rapidly, the red FCA display will flash on the windshield. Also, eight rapid high-pitched beeps will sound from the front, or both sides of the Safety Alert Seat will pulse five times. When this Collision Alert occurs, the brake system may prepare for driver braking to occur more rapidly which can cause a brief, mild deceleration. Continue to apply the brake pedal as needed. Selecting the Alert Timing alert timing. The range of selectable alert timings may not be appropriate for all drivers and driving conditions. If your vehicle is equipped with Adaptive Cruise Control (ACC), changing the FCA timing setting automatically changes the following gap setting (Far, Medium, or Near). Following Distance Indicator Tailgating Alert The vehicle ahead indicator will display amber when you are following a vehicle ahead too closely. 253 The Collision Alert control is on the steering wheel. Press [ to set the FCA timing to Far, Medium, or Near. The first button press shows the current setting on the DIC. Additional button presses will change this setting. The chosen setting will remain until it is changed and will affect the timing of both the Collision Alert and the Tailgating Alert features. The timing of both alerts will vary based on vehicle speed. The faster the vehicle speed, the farther away the alert will occur. Consider traffic and weather conditions when selecting the The following distance to a moving vehicle ahead in your path is indicated in following time in seconds on the Driver Information Center (DIC). See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. The minimum following time is 0.5 seconds away. If there is no vehicle detected ahead, or the vehicle ahead is out of sensor range, dashes will be displayed. Unnecessary Alerts FCA may provide unnecessary alerts for turning vehicles, vehicles in other lanes, objects that are not vehicles, or shadows. These alerts are normal operation and the vehicle does not need service. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 254 DRIVING AND OPERATING Cleaning the System If the FCA system does not seem to operate properly, this may correct the issue: . Clean the outside of the windshield in front of the rearview mirror. . Clean the entire front of the vehicle. . Clean the headlamps. Automatic Emergency Braking (AEB) The AEB system may help avoid or reduce the harm caused by front-end crashes. AEB also includes Intelligent Brake Assist (IBA). When the system detects a vehicle ahead in your path that is traveling in the same direction that you may be about to crash into, it can provide a boost to braking or automatically brake the vehicle. This can help avoid or lessen the severity of crashes when driving in a forward gear. Depending on the situation, the vehicle may automatically brake moderately or hard. This automatic emergency braking can only occur if a vehicle is detected. This is shown by the FCA vehicle ahead indicator being lit. See Forward Collision Alert (FCA) System 0 251. The system works when driving in a forward gear between 8 km/h (5 mph) and 80 km/h (50 mph), or on vehicles with Adaptive Cruise Control (ACC), above 4 km/h (2 mph). It can detect vehicles up to approximately 60 m (197 ft). { Warning AEB is an emergency crash preparation feature and is not designed to avoid crashes. Do not rely on AEB to brake the vehicle. AEB will not brake outside of its operating speed range and only responds to detected vehicles. AEB may not: . Detect a vehicle ahead on winding or hilly roads. . Detect all vehicles, especially vehicles with a trailer, tractors, muddy vehicles, etc. (Continued) Warning (Continued) . Detect a vehicle when weather limits visibility, such as in fog, rain, or snow. . Detect a vehicle ahead if it is partially blocked by pedestrians or other objects. Complete attention is always required while driving, and you should be ready to take action and apply the brakes and/or steer the vehicle to avoid crashes. AEB may slow the vehicle to a complete stop to try to avoid a potential crash. If this happens, AEB may hold the vehicle at rest momentarily. A firm press of the accelerator will release the braking. { Warning AEB may automatically brake the vehicle suddenly in situations where it is unexpected and undesired. It could respond to a turning vehicle ahead, guardrails, (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Warning (Continued) signs, and other non-moving objects. To override AEB, firmly press the accelerator pedal, if it is safe to do so. Intelligent Brake Assist (IBA) IBA may activate when the brake pedal is applied quickly by providing a boost to braking based on the speed of approach and distance to a vehicle ahead. Minor brake pedal pulsations or pedal movement during this time is normal and the brake pedal should continue to be applied as needed. IBA will automatically disengage only when the brake pedal is released. { Warning IBA may increase vehicle braking in situations when it may not be necessary. You could block the flow of traffic. If this occurs, take your foot off the brake pedal and then apply the brakes as needed. AEB and IBA can be disabled through vehicle personalization. See “Collision/ Detection Systems” under Vehicle Personalization 0 114. { Warning Using AEB or IBA while towing a trailer could cause you to lose control of the vehicle and crash. Turn the system to Alert, or if the vehicle has ACC to Off, when towing a trailer. A system unavailable message may display if: . The front of the vehicle or windshield is not clean. . Heavy rain or snow is interfering with object detection. . There is a problem with the StabiliTrak/Electronic Stability Control (ESC) system. The AEB system does not need service. 255 Front Pedestrian Braking (FPB) System If equipped, the FPB system may help avoid or reduce the harm caused by front-end crashes with nearby pedestrians when driving in a forward gear. FPB displays an amber indicator, ~, when a nearby pedestrian is detected ahead. When approaching a detected pedestrian too quickly, FPB provides a red flashing alert on the windshield and rapidly beeps or pulses the driver seat. FPB can provide a boost to braking or automatically brake the vehicle. This system includes Intelligent Brake Assist (IBA), and the Automatic Emergency Braking (AEB) System may also respond to pedestrians. See Automatic Emergency Braking (AEB) 0 254. The FPB system can detect and alert to pedestrians in a forward gear at speeds between 8 km/h (5 mph) and 80 km/h (50 mph). During daytime driving, the system detects pedestrians up to a distance of approximately 40 m (131 ft). During nighttime driving, system performance is very limited. If the vehicle is Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 256 DRIVING AND OPERATING equipped with the Night Vision system, during nighttime driving, the vehicle can detect and alert to pedestrians whenever in a forward gear. { Warning FPB does not provide an alert or automatically brake the vehicle, unless it detects a pedestrian. FPB may not detect pedestrians, including children: . When the pedestrian is not directly ahead, fully visible, or standing upright, or when part of a group. . Due to poor visibility, including nighttime conditions, fog, rain, or snow. . If the FPB sensor is blocked by dirt, snow, or ice. . If the headlamps or windshield are not cleaned or in proper condition. (Continued) Warning (Continued) Front Pedestrian Alert Be ready to take action and apply the brakes. For more information, see Defensive Driving 0 190. Keep the windshield, headlamps, and FPB sensor clean and in good repair. FPB can be set to Off, Alert, or Alert & Brake through vehicle personalization. See “Front Pedestrian Detection” in “Collision/Detection Systems” under Vehicle Personalization 0 114. With Head-Up Display Detecting the Pedestrian Ahead Without Head-Up Display FPB alerts and automatic braking will not occur unless the FPB system detects a pedestrian. When a nearby pedestrian is detected in front of the vehicle, the pedestrian ahead indicator will display amber. When the vehicle approaches a pedestrian ahead too rapidly, the red FPB alert display will flash on the windshield. Eight rapid high-pitched beeps will sound from the front, or both sides of the Safety Alert Seat will pulse five times. When this Pedestrian Alert occurs, the brake system may prepare for driver braking to occur more rapidly which can cause a brief, mild deceleration. Continue to apply the brake pedal as needed. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Cruise control may be disengaged when the Front Pedestrian Alert occurs. Automatic Braking If FPB detects it is about to crash into a pedestrian directly ahead, and the brakes have not been applied, FPB may automatically brake moderately or brake hard. This can help to avoid some very low speed pedestrian crashes or reduce pedestrian injury. FPB can automatically brake to detected pedestrians between 8 km/h (5 mph) and 80 km/h (50 mph). Automatic braking levels may be reduced under certain conditions, such as higher speeds. If also equipped with the Night Vision system, pedestrians detected by the Night Vision system will not cause automatic braking to occur. If this happens, Automatic Braking may engage the Electric Parking Brake (EPB) to hold the vehicle at a stop. Release the EPB. A firm press of the accelerator pedal will also release Automatic Braking and the EPB. { Warning FPB may alert or automatically brake the vehicle suddenly in situations where it is unexpected and undesired. It could falsely alert or brake for objects similar in shape or size to pedestrians, including shadows. This is normal operation and the vehicle does not need service. To override Automatic Braking, firmly press the accelerator pedal, if it is safe to do so. Automatic Braking can be disabled through vehicle personalization. See “Front Pedestrian Detection” in “Collision/Detection Systems” under Vehicle Personalization 0 114. { Warning Using the Front Pedestrian Braking system while towing a trailer could cause you to lose control of the vehicle and crash. Turn the system to Alert or Off when towing a trailer. 257 Cleaning the System If FPB does not seem to operate properly, cleaning the outside of the windshield in front of the rearview mirror may correct the issue. Side Blind Zone Alert (SBZA) If equipped, the SBZA system is a lane-changing aid that assists drivers with avoiding crashes that occur with moving vehicles in the side blind zone, or blind spot areas. When the vehicle is in a forward gear, the left or right side mirror display will light up if a moving vehicle is detected in that blind zone. If the turn signal is activated and a vehicle is also detected on the same side, the display will flash as an extra warning not to change lanes. Since this system is part of the Lane Change Alert (LCA) system, read the entire LCA section before using this feature. Lane Change Alert (LCA) If equipped, the LCA system is a lane-changing aid that assists drivers with avoiding lane change crashes Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 258 DRIVING AND OPERATING that occur with moving vehicles in the side blind zone (or spot) areas or with vehicles rapidly approaching these areas from behind. The LCA warning display will light up in the corresponding outside mirror and will flash if the turn signal is on. LCA Detection Zones { Warning LCA does not alert the driver to vehicles outside of the system detection zones, pedestrians, bicyclists, or animals. It may not provide alerts when changing lanes under all driving conditions. Failure to use proper care when changing lanes may result in injury, death, or vehicle damage. Before making a lane change, always check mirrors, glance over your shoulder, and use the turn signals. 1. SBZA Detection Zone 2. LCA Detection Zone The LCA sensor covers a zone of approximately one lane over from both sides of the vehicle, or 3.5 m (11 ft). The height of the zone is approximately between 0.5 m (1.5 ft) and 2 m (6 ft) off the ground. The Side Blind Zone Alert (SBZA) warning area starts at approximately the middle of the vehicle and goes back 5 m (16 ft). Drivers are also warned of vehicles rapidly approaching from up to 70 m (230 ft) behind the vehicle. How the System Works The LCA symbol lights up in the outside mirrors when the system detects a moving vehicle in the next lane over that is in the side blind zone or rapidly approaching that zone from behind. A lit LCA symbol indicates it may be unsafe to change lanes. Before making a lane change, check the LCA display, check mirrors, glance over your shoulder, and use the turn signals. Left Outside Mirror Display Right Outside Mirror Display When the vehicle is started, both outside mirror LCA displays will briefly come on to indicate the system is operating. When the vehicle is in a forward gear, the left or right outside mirror display will light up if a moving vehicle is detected in the next lane over in that blind zone or rapidly approaching that zone. If the turn Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING signal is activated in the same direction as a detected vehicle, this display will flash as an extra warning not to change lanes. LCA can be disabled. When you disable LCA, Side Blind Zone Alert is also disabled. See “Collision/Detection Systems” under Vehicle Personalization 0 114. If LCA is disabled by the driver, the LCA mirror displays will not light up. When the System Does Not Seem to Work Properly The LCA system requires some driving for the system to calibrate to maximum performance. This calibration may occur more quickly if the vehicle is driving on a straight highway road with traffic and roadside objects (e.g., guardrails, barriers). LCA displays may not come on when passing a vehicle quickly, for a stopped vehicle, or when towing a trailer. The LCA detection zones that extend back from the side of the vehicle do not move further back when a trailer is towed. Use caution while changing lanes when towing a trailer. LCA may alert to objects attached to the vehicle, such as a trailer, bicycle, or object extending out to either side of the vehicle. Attached objects may also interfere with the detection of vehicles. This is normal system operation; the vehicle does not need service. LCA may not always alert the driver to vehicles in the next lane over, especially in wet conditions or when driving on sharp curves. The system does not need to be serviced. The system may light up due to guardrails, signs, trees, shrubs, and other non-moving objects. This is normal system operation; the vehicle does not need service. LCA may not operate when the LCA sensors in the left or right corners of the rear bumper are covered with mud, dirt, snow, ice, or slush, or in heavy rainstorms. For cleaning instructions, see "Washing the Vehicle" under Exterior Care 0 319. If the DIC still displays the system unavailable message after cleaning 259 both sides of the vehicle toward the rear corners of the vehicle, see your dealer. If the LCA displays do not light up when moving vehicles are in the side blind zone or are rapidly approaching this zone and the system is clean, the system may need service. Take the vehicle to your dealer. Lane Keep Assist (LKA) If equipped, LKA may help avoid crashes due to unintentional lane departures. This system uses a camera to detect lane markings between 60 km/h (37 mph) and 180 km/h (112 mph). It may assist by gently turning the steering wheel if the vehicle approaches a detected lane marking. It may also provide a Lane Departure Warning (LDW) alert if the vehicle crosses a detected lane marking. LKA can be overridden by turning the steering wheel. This system is not intended to keep the vehicle centered in the lane. LKA will not assist and alert if the turn signal is active in the direction of lane Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 260 DRIVING AND OPERATING departure, or if it detects that you are accelerating, braking or actively steering. { Warning The LKA system does not continuously steer the vehicle. It may not keep the vehicle in the lane or give a Lane Departure Warning (LDW) alert, even if a lane marking is detected. The LKA and LDW systems may not: . Provide an alert or enough steering assist to avoid a lane departure or crash. . Detect lane markings under poor weather or visibility conditions. This can occur if the windshield or headlamps are blocked by dirt, snow, or ice; if they are not in proper condition; or if the sun shines directly into the camera. . Detect road edges. . Detect lanes on winding or hilly roads. (Continued) Warning (Continued) If LKA only detects lane markings on one side of the road, it will only assist or provide an LDW alert when approaching the lane on the side where it has detected a lane marking. Even with LKA and LDW, you must steer the vehicle. Always keep your attention on the road and maintain proper vehicle position within the lane, or vehicle damage, injury, or death could occur. Always keep the windshield, headlamps, and camera sensors clean and in good repair. Do not use LKA in bad weather conditions or on roads with unclear lane markings, such as construction zones. { Warning Using LKA while towing a trailer or on slippery roads could cause loss of control of the vehicle and a crash. Turn the system off. How the System Works LKA uses a camera sensor installed on the windshield ahead of the rearview mirror to detect lane markings. It may provide brief steering assist if it detects an unintended lane departure. It may further provide an audible alert or the driver seat may pulse indicating that a lane marking has been crossed. To turn LKA on and off, press A on the center stack. If equipped, the indicator light on the button comes on when LKA is on and turns off when LKA is disabled. When on, A is white, if equipped, indicating that the system is not ready to assist. A is green if LKA is ready to assist. LKA may assist by gently turning the steering wheel if the vehicle approaches a detected lane marking. A is amber when assisting. It may also provide a Lane Departure Warning (LDW) alert by flashing A amber if the vehicle crosses a detected lane marking. Additionally, there may be three beeps, or the driver seat may pulse Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING three times, on the right or left, depending on the lane departure direction. Take Steering The LKA system does not continuously steer the vehicle. If LKA does not detect active driver steering, an alert and chime may be provided. Steer the vehicle to dismiss. LKA may become temporarily unavailable after repeated take steering alerts. When the System Does Not Seem to Work Properly The system performance may be affected by: . Close vehicles ahead. . Sudden lighting changes, such as when driving through tunnels. . Banked roads. . Roads with poor lane markings, such as two-lane roads. If the LKA system is not functioning properly when lane markings are clearly visible, cleaning the windshield may help. A camera blocked message may display if the camera is blocked. Some driver assistance systems may have reduced performance or not work at all. An LKA or LDW unavailable message may display if the systems are temporarily unavailable. This message could be due to a blocked camera. The LKA system does not need service. Clean the outside of the windshield behind the rearview mirror. LKA assistance and/or LDW alerts may occur due to tar marks, shadows, cracks in the road, temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LKA off if these conditions continue. 261 www.toptiergas.com for a list of TOP TIER Detergent Gasoline marketers and applicable countries. Recommended Fuel (LSY 2.0L L4 Turbo Engine) Fuel Top Tier Fuel GM recommends the use of TOP TIER Detergent Gasoline to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance. Look for the TOP TIER Logo or see Unleaded petrol with a posted octane rating of 95 RON or greater and with ethanol up to 10% by volume is recommended. If unavailable, Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 262 DRIVING AND OPERATING unleaded petrol rated at 91 RON can be used, but will result in reduced performance and driveability, and an audible knocking noise may be heard. Once available, 95 RON petrol or greater should continue to be used. If heavy knocking is heard when using unleaded petrol rated at 95 RON or greater, the engine needs service. Recommended Fuel (L3B 2.7L L4 Turbo Engine) Use the recommended fuel for proper vehicle maintenance. Use unleaded petrol with a posted octane rating of 95 RON or higher and with ethanol up to 10% by volume. If the octane is less than 95 RON, the engine could be damaged and repairs would not be covered by the vehicle warranty. If heavy knocking is heard when using petrol rated at 95 RON octane, the engine needs service. Prohibited Fuels Caution Do not use fuels with any of the following conditions; doing so may damage the vehicle and void its warranty: . Fuel with any amount of methanol, methylal, ferrocene, and aniline. These fuels can corrode metal fuel system parts or damage plastic and rubber parts. . Fuel containing metals such as methylcyclopentadienyl manganese tricarbonyl (MMT), which can damage the emissions control system and spark plugs. . Fuel with a posted octane rating of less than the recommended fuel. Using this fuel will lower fuel economy and performance, and may decrease the life of the emissions catalyst. Fuel Additives TOP TIER Detergent Gasoline is highly recommended for use with your vehicle. If your country does not have TOP TIER Detergent Gasoline, add ACDelco Fuel System Treatment Plus-Gasoline to the vehicle’s gasoline fuel tank at every oil change or 15 000 km (9,000 mi), whichever occurs first. TOP TIER Detergent Gasoline and ACDelco Fuel System Treatment Plus-Gasoline will help keep your vehicle’s engine fuel deposit free and performing optimally. If you are unable to obtain ACDelco Fuel System Treatment Plus - Gasoline, consult your dealer for the GM approved additive available in your country. Filling the Tank An arrow on the fuel gauge indicates which side of the vehicle the fuel door is on. See Fuel Gauge (Base Level) 0 93 or Fuel Gauge (Uplevel) 0 94. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING { Warning Warning (Continued) Fuel vapors and fuel fires burn violently and can cause injury or death. . Before touching the fill nozzle, Follow these guidelines to help avoid injuries to you and others: . Read and follow all the . . . . . . instructions on the fuel pump island. Turn off the engine when refueling. Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended. Avoid using electronic devices while refueling. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump and never let children pump fuel. (Continued) touch a metallic object to discharge static electricity from your body. . Fuel can spray out if the fill nozzle is inserted too quickly. This spray can happen if the tank is nearly full, and is more likely in hot weather. Insert the fill nozzle slowly and wait for any hiss noise to stop before beginning to flow fuel. 263 To open the fuel door, push and release the rearward center edge of the door. The capless refueling system does not have a fuel cap. Fully insert and latch the fill nozzle, begin fueling. { Warning Overfilling the fuel tank by more than three clicks of a standard fill nozzle may cause: . Vehicle performance issues, including engine stalling and damage to the fuel system. . Fuel spills. . Under certain conditions, fuel fires. Be careful not to spill fuel. Wait five seconds after you have finished pumping before removing the fill nozzle. Clean fuel from painted surfaces as soon as possible. See Exterior Care 0 319. Push the fuel door closed until it latches. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 264 DRIVING AND OPERATING { Warning { Warning Warning (Continued) If a fire starts while you are refueling, do not remove the fill nozzle. Shut off the flow of fuel by shutting off the pump or by notifying the station attendant. Leave the area immediately. Attempting to refuel from a portable fuel container without using the funnel adapter may cause fuel spillage and damage the capless fuel system. This could cause a fire. You or others could be badly burned and the vehicle could be damaged. . Dispense fuel only into approved Filling the Tank with a Portable Fuel Container If the vehicle runs out of fuel and must be filled from a portable fuel container: 3. Remove and clean the funnel adapter and return it to the storage location. Filling a Portable Fuel Container { Warning 1. Locate the capless funnel adapter. 2. Insert and latch the funnel into the capless fuel system. Never fill a portable fuel container while it is in the vehicle. Static electricity discharge from the container can ignite the fuel vapor. You or others could be badly burned and the vehicle could be damaged. To help avoid injury to you and others: (Continued) . . . . containers. Do not fill a container while it is inside a vehicle, in a vehicle's trunk, in a pickup bed, or on any surface other than the ground. Bring the fill nozzle in contact with the inside of the fill opening before operating the nozzle. Maintain contact until filling is complete. Keep sparks, flames, and smoking materials away from fuel. Avoid using electronic devices while pumping fuel. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 DRIVING AND OPERATING Trailer Towing General Towing Information { Warning Never tow a trailer with your vehicle. It was not designed or intended to tow a trailer. Conversions and Add-Ons Add-On Electrical Equipment { Warning The Data Link Connector (DLC) is used for vehicle service and Emission Inspection/Maintenance testing. See Malfunction Indicator Lamp (Check Engine Light) 0 97. A device connected to the DLC — such as an aftermarket fleet or driver-behavior tracking device — (Continued) Warning (Continued) may interfere with vehicle systems. This could affect vehicle operation and cause a crash. Such devices may also access information stored in the vehicle’s systems. Caution Some electrical equipment can damage the vehicle or cause components to not work and would not be covered by the vehicle warranty. Always check with your dealer before adding electrical equipment. Add-on equipment can drain the vehicle's 12-volt battery, even if the vehicle is not operating. The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle 0 56 and Adding Equipment to the Airbag-Equipped Vehicle 0 56. 265 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 266 VEHICLE CARE Wiper Blade Replacement . . . . . . . 288 Windshield Replacement . . . . . . . . 289 Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 289 Vehicle Care General Information General Information . . . . . . . . . . . . . 267 Accessories and Modifications . . . . . . . . . . . . . . . . . . . 267 Vehicle Checks Doing Your Own Service Work . . . . . . . . . . . . . . . . . . . . Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . Engine Oil Life System . . . . . . . . . . . Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Air Filter Life System . . . . Engine Air Cleaner/Filter . . . . . . . . . Cooling System . . . . . . . . . . . . . . . . . . . Engine Overheating . . . . . . . . . . . . . . Washer Fluid . . . . . . . . . . . . . . . . . . . . . Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brake Pad Life System (If Equipped) . . . . . . . . . . . . . . . . . . . . . . . Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-Wheel Drive . . . . . . . . . . . . . . . . . . Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . 267 268 270 273 275 276 276 277 278 283 284 284 285 286 287 288 288 Headlamp Aiming Front Headlamp Aiming . . . . . . . . . 290 Bulb Replacement Bulb Replacement . . . . . . . . . . . . . . . . Halogen Bulbs . . . . . . . . . . . . . . . . . . . . High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . LED Lighting . . . . . . . . . . . . . . . . . . . . . Front Turn Signal Lamps . . . . . . . . 290 291 291 291 291 Electrical System Electrical System Overload . . . . . . Fuses and Circuit Breakers . . . . . . Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrument Panel Fuse Block . . . . Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 292 293 295 Jump Starting 298 Towing the Vehicle Wheels and Tires Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-Season Tires . . . . . . . . . . . . . . . . . . Winter Tires . . . . . . . . . . . . . . . . . . . . . . Run-Flat Tires . . . . . . . . . . . . . . . . . . . . Self-Sealing Tires . . . . . . . . . . . . . . . . . Low-Profile Tires . . . . . . . . . . . . . . . . . Summer Tires . . . . . . . . . . . . . . . . . . . . Tire Pressure . . . . . . . . . . . . . . . . . . . . . . Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . Tire Pressure Monitor System . . . Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . Tire Inspection . . . . . . . . . . . . . . . . . . . Tire Rotation . . . . . . . . . . . . . . . . . . . . . When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Buying New Tires . . . . . . . . . . . . . . . . Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . Wheel Replacement . . . . . . . . . . . . . . Tire Chains . . . . . . . . . . . . . . . . . . . . . . . If a Tire Goes Flat . . . . . . . . . . . . . . . . 300 300 301 301 302 302 302 303 304 305 306 309 309 310 311 313 313 313 314 314 Jump Starting . . . . . . . . . . . . . . . . . . . . . 315 Towing the Vehicle . . . . . . . . . . . . . . . 317 Recreational Vehicle Towing . . . . 319 Appearance Care Exterior Care . . . . . . . . . . . . . . . . . . . . . . 319 Interior Care . . . . . . . . . . . . . . . . . . . . . . 324 Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 326 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE General Information For service and parts needs, visit your dealer. You will receive genuine parts and trained and supported service people. Accessories and Modifications Adding non-dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty. Damage to suspension components caused by modifying vehicle height outside of factory settings will not be covered by the vehicle warranty. Damage to vehicle components resulting from modifications or the installation or use of non-GM certified parts, including control module or software modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts. GM Accessories are designed to complement and function with other systems on the vehicle. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician. Also, see Adding Equipment to the Airbag-Equipped Vehicle 0 56. Vehicle Checks Doing Your Own Service Work { Warning It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner’s manual procedures and (Continued) 267 Warning (Continued) consult the service manual for your vehicle before doing any service work. If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manual can. This vehicle has an airbag system. Before attempting to do your own service work, see Servicing the Airbag-Equipped Vehicle 0 56. Keep a record with all parts receipts and list the mileage and the date of any service work performed. Caution Even small amounts of contamination can cause damage to vehicle systems. Do not allow contaminants to contact the fluids, reservoir caps, or dipsticks. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 268 VEHICLE CARE Hood To open the hood: { Warning For vehicles with auto engine stop/ start, turn the vehicle off before opening the hood. If the vehicle is on, the engine will start when the hood is opened. You or others could be injured. { Warning Components under the hood can get hot from running the engine. To help avoid the risk of burning unprotected skin, never touch these components until they have cooled, and always use a glove or towel to avoid direct skin contact. Clear any snow from the hood before opening. 1. Pull the hood release lever with the i symbol. It is on the lower left side of the instrument panel. 2. Go to the front of the vehicle and locate the secondary release lever under the front center of the hood. Push the secondary hood release lever to the right to release. 3. After you have partially lifted the hood, the gas strut system will automatically lift the hood and hold it in the fully open position. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE To close the hood: 1. Before closing the hood, be sure all filler caps are on properly, and all tools are removed. 2. Pull the hood down until the strut system is no longer holding up the hood. 3. Lower the hood 20 cm (8 in) above the vehicle. Allow the hood to fall. Check to make sure the hood is latched completely. Repeat this process with additional force if necessary. { Warning Do not drive the vehicle if the hood is not latched completely. The hood could open fully, block your vision, and cause a crash. You or others could be injured. Always close the hood completely before driving. The Driver Information Center (DIC) will display a message if the hood is not fully closed. Stop and turn off the vehicle, check the hood for obstructions, and close the hood again. Check to see if the message still appears on the DIC. 269 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 270 VEHICLE CARE Engine Compartment Overview 2.0L L4 Engine Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE 1. Windshield Washer Fluid Reservoir. See Washer Fluid 0 284. 2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0 278. 3. Engine Air Cleaner/Filter 0 277. 4. Engine Cooling Fan (Out of View). See Cooling System 0 278. 5. Engine Oil Fill Cap. See Engine Oil 0 273. 6. Engine Oil Dipstick. See Engine Oil 0 273. 7. Remote Positive (+) Battery Terminal. See Jump Starting 0 315. 8. Brake Fluid Reservoir. See Brake Fluid 0 286. 9. Remote Negative (-) Battery Terminal. See Jump Starting 0 315. 10. Engine Compartment Fuse Block 0 293. 271 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 272 VEHICLE CARE 1. Windshield Washer Fluid Reservoir. See Washer Fluid 0 284. 2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0 278. 3. Engine Air Cleaner/Filter 0 277. 2.7L L4 Engine 4. Engine Cooling Fan (Out of View). See Cooling System 0 278. 5. Engine Oil Fill Cap. See Engine Oil 0 273. 6. Cooling System Air Bleeder Cap. See Cooling System 0 278. 7. Engine Oil Dipstick. See Engine Oil 0 273. 8. Remote Positive (+) Battery Terminal. See Jump Starting 0 315. 9. Brake Fluid Reservoir. See Brake Fluid 0 286. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE 10. Remote Negative (-) Battery Terminal. See Jump Starting 0 315. 11. Engine Compartment Fuse Block 0 293. Engine Oil To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: . Use engine oil approved to the proper specification and of the proper viscosity grade. See “Selecting the Right Engine Oil” in this section. . Check the engine oil level regularly and maintain the proper oil level. See “Checking Engine Oil” and “When to Add Engine Oil” in this section. . Change the engine oil at the appropriate time. See Engine Oil Life System 0 275. . Always dispose of engine oil properly. See “What to Do with Used Oil” in this section. Checking Engine Oil Check the engine oil level regularly, every 650 km (400 mi), especially prior to a long trip. The engine oil dipstick handle is a loop. See Engine Compartment Overview 0 270 for the location. { Warning The engine oil dipstick handle may be hot; it could burn you. Use a towel or glove to touch the dipstick handle. 273 improves when checking a cold engine prior to starting. Remove the dipstick and check the level. . If unable to wait two hours, the engine must be off for at least 15 minutes if the engine is warm, or at least 30 minutes if the engine is not warm. Pull out the dipstick, wipe it with a clean paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level. When to Add Engine Oil If a low oil Driver Information Center (DIC) message displays, check the oil level. Follow these guidelines: . To get an accurate reading, park the vehicle on level ground. Check the engine oil level after the engine has been off for at least two hours. Checking the engine oil level on steep grades or too soon after engine shutoff can result in incorrect readings. Accuracy If the oil is below the cross-hatched area at the tip of the dipstick and the engine has been off for at least 15 minutes, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” later in this section for an Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 274 VEHICLE CARE explanation of what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications 0 342. Caution Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If the oil level is above the operating range (i.e., the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range), the engine could be damaged. Drain the excess oil or limit driving of the vehicle, and seek a service professional to remove the excess oil. See Engine Compartment Overview 0 270 for the location of the engine oil fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when finished. Selecting the Right Engine Oil Viscosity Grade Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants 0 337. For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil. Specification Use full synthetic engine oils that meet the dexos1 specification. Engine oils that have been approved by GM as meeting the dexos1 specification are marked with the dexos1 approved logo. See www.gmdexos.com. Caution Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil. Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29 °C (−20 °F), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, it is recommended to select an oil of the correct specification. See “Specification” earlier in this section. Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil. Engine Oil Life System When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must be changed at least once a year and at this time the system must be reset. Your dealer has trained service 275 people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed. How to Reset the Engine Oil Life System Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system: 1. Using the DIC buttons, display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 2. Press and hold the thumbwheel on the steering wheel. When the confirmation message displays, select YES. The oil life will change to 100%. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 276 VEHICLE CARE Be careful not to reset the oil life display accidentally at any time other than after the oil is changed. It cannot be reset accurately until the next oil change. The oil life system can also be reset as follows: 1. Using the DIC buttons, display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 2. Fully press and release the accelerator pedal three times within five seconds. If the CHANGE ENGINE OIL SOON message is not on, the system is reset. The system is reset when the CHANGE ENGINE OIL SOON message is off. If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the engine oil life system has not been reset. Repeat the procedure. Automatic Transmission Fluid How to Check Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer and have it repaired as soon as possible. The vehicle is not equipped with a transmission fluid level dipstick. There is a special procedure for checking and changing the transmission fluid. Because this procedure is difficult, this should be done at the dealer. Contact your dealer for additional information. Caution Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty. Always use the correct automatic (Continued) Caution (Continued) transmission fluid. See Recommended Fluids and Lubricants 0 337. Change the fluid and filter at the intervals listed in Maintenance Schedule 0 329, and be sure to use the fluid listed in Recommended Fluids and Lubricants 0 337. Engine Air Filter Life System If equipped, this feature provides the engine air filter’s remaining life and best timing for a change. The timing to change an engine air filter depends on driving and environmental conditions. When to Change the Engine Air Filter When the Driver Information Center (DIC) displays a message to replace the engine air filter at the next oil change, follow this timing. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE When the DIC displays a message to replace the engine air filter soon, replace the engine air filter at the earliest convenience. The system must be reset after the engine air filter is changed. If the DIC displays a message to check the engine air filter system, see your dealer. How to Reset the Engine Air Filter Life System To reset: 1. Place the vehicle in P (Park). 2. Display the Air Filter Life on the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 3. Press T on the steering wheel, or press the trip odometer reset stem if the vehicle does not have DIC controls, to move to the Reset/ Disable display area. Select Reset, then press the thumbwheel or press the reset stem for several seconds. 4. Press the thumbwheel or the reset stem to confirm the reset. Engine Air Cleaner/Filter The engine air cleaner/filter is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview 0 270. 277 make sure that the engine air cleaner/ filter housing and nearby components are free of dirt and debris. Do not clean the engine air cleaner/ filter or components with water or compressed air. To inspect or replace the air cleaner/ filter: When to Inspect the Engine Air Cleaner/Filter . For intervals on changing and inspecting the engine air filter, see Maintenance Schedule 0 329. . If equipped with Engine Air Filter Life System, see Engine Air Filter Life System 0 276. . If driving in very dusty areas, follow the engine air filter inspecting and changing intervals, see Maintenance Schedule 0 329. How to Inspect/Replace the Engine Air Cleaner/Filter Do not start the engine or have the engine running with the engine air cleaner/filter housing open. Before removing the engine air cleaner/filter, 2.0L L4 Engine Shown, 2.7L L4 Engine Similar 1. Remove the five screws on top of the air cleaner/filter cover. 2. Lift the air/cleaner/filter cover away from the air cleaner/filter housing. 3. Pull out the air cleaner/filter. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 278 VEHICLE CARE { Warning { Warning If part replacement is necessary, the part must be replaced with one of the same part number or with an equivalent part. Use of a replacement part without the same fit, form, and function may result in personal injury or damage to the vehicle. Operating the engine with the air cleaner/filter off can cause you or others to be burned. Use caution when working on the engine. Do not start the engine or drive the vehicle with the air cleaner/filter off, as flames may be present if the engine backfires. 4. Inspect or replace the air cleaner/ filter. 5. Reverse Steps 1–3 to reinstall the air cleaner/filter cover. 6. If equipped, reset the engine air filter life system after replacing the engine air filter. See Engine Air Filter Life System 0 276. Cooling System The cooling system allows the engine to maintain the correct working temperature. Caution If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when driving. 2.0L L4 Engine 1. Engine Coolant Surge Tank and Pressure Cap 2. Engine Cooling Fan (Out of View) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE { Warning Do not touch heater or radiator hoses, or other engine parts. They can be very hot and can burn you. Do not run the engine if there is a leak; all coolant could leak out. That could cause an engine fire and can burn you. Fix any leak before driving the vehicle. 2.7L L4 Engine 1. Engine Coolant Surge Tank and Pressure Cap 2. Engine Cooling Fan (Out of View) 3. Cooling System Air Bleeder Cap { Warning An underhood electric fan can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan. Engine Coolant The cooling system in the vehicle is filled with DEX-COOL engine coolant. See Maintenance Schedule 0 329 and Recommended Fluids and Lubricants 0 337. The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating 0 283. 279 What to Use { Warning Do not touch heater or radiator hoses, or other engine parts. They can be very hot and can burn you. Do not run the engine if there is a leak; all coolant could leak out. That could cause an engine fire and can burn you. Fix any leak before driving the vehicle. Use a 50/50 mixture of clean drinkable water and DEX-COOL coolant. This mixture: . Gives freezing protection down to −37 °C (−34 °F), outside temperature. . Gives boiling protection up to 129 °C (265 °F), engine temperature. . Protects against rust and corrosion. . Will not damage aluminum parts. . Helps keep the proper engine temperature. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 280 VEHICLE CARE Caution Do not use anything other than a mix of DEX-COOL coolant that meets GM Standard GMW3420 and clean, drinkable water. Anything else can cause damage to the engine cooling system and the vehicle, which would not be covered by the vehicle warranty. Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health. Checking Coolant The vehicle must be on a level surface when checking the coolant level. It is normal to see coolant moving in the upper coolant hose return line when the engine is running. It is also normal to see bubbles entering the surge tank through the small hose. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If no coolant is visible in the coolant surge tank, add coolant as follows: How to Add Coolant to the Coolant Surge Tank { Warning Spilling coolant on hot engine parts can burn you. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. { Warning If coolant is visible but the coolant level is not at or above the indicated mark, add a 50/50 mixture of clean drinkable water and DEX-COOL coolant. Be sure the cooling system is cool before this is done. Plain water, or other liquids such as alcohol, can boil before the proper coolant mixture will. With plain water or the wrong mixture, the engine could get too hot but there would not be an overheat warning. The engine could catch fire and you or others could be burned. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE { Warning Steam and scalding liquids from a hot cooling system are under pressure. Turning the pressure cap, even a little, can cause them to come out at high speed and you could be burned. Never turn the cap when the cooling system, including the pressure cap, is hot. Wait for the cooling system and pressure cap to cool. Caution Failure to follow the specific coolant fill procedure could cause the engine to overheat and could cause system damage. If coolant is not visible in the surge tank, contact your dealer. If no problem is found, check to see if coolant is visible in the coolant surge tank. If coolant is visible but the coolant level is not at or above the indicated mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it. 281 To use this feature: 2.0L L4 Engine Automatic Coolant Service Fill Instructions The vehicle is equipped with a service feature that assists with filling and removing air from the cooling system after service of components or when coolant is added after being to low. 1. With a cold system, add coolant to the indicated mark on the surge tank. 2. Replace the pressure cap on the surge tank. 3. Activate the service feature: 3.1. Connect the vehicle to a battery charger. 3.2. Turn the ignition to Service Mode. See Ignition Positions 0 204. 3.3. Turn off the air conditioning. 3.4. Set the parking brake. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 282 VEHICLE CARE 3.5. At the same time, press the accelerator and the brake pedal for two seconds, then release. 3.6. At the end of the cycle, check the coolant level in the surge tank and add coolant if it is below the indicated mark. Turn the ignition off, allow the Electronic Control Module (ECM) to go to sleep, about two minutes, and repeat Steps 3.2 – 3.6. Listen for pump activation and movement of the control valves while watching the level of the coolant in the surge tank. If the tank empties, turn the ignition off, carefully remove the pressure cap, refill to the indicated mark, replace the pressure cap, and repeat steps 3.2 – 3.6. The fill and air removal process will run for approximately 15 minutes. Caution If the pressure cap is not tightly installed, coolant loss and engine damage may occur. Be sure the cap is properly and tightly secured. 2.7L L4 Engine Automatic Coolant Service Fill Instructions The vehicle is equipped with a service feature that assists with filling and removing air from the cooling system after service of components or when coolant is added after being to low. To use this feature: 1. With a cold system unscrew the cooling system air bleeder cap. If coolant can be seen through the bleeder move to Step 3. 2. Add coolant through the surge tank until it is visible through the air bleeder. 3. Replace the cooling system air bleeder cap. 4. Add coolant to the indicated line on the surge tank. 5. Replace the pressure cap on the surge tank. 6. Activate the service feature: 6.1. Connect the vehicle to a battery charger. 6.2. Turn the ignition to Service Mode. See Ignition Positions 0 204. 6.3. Turn off the air conditioning. 6.4. Set the parking brake. 6.5. At the same time, press the accelerator and the brake pedal for two seconds, then release. 6.6. At the end of the cycle, check the coolant level in the surge tank and add coolant if it is below the indicated mark. Turn the ignition off, carefully remove the pressure cap, refill to the indicated mark, replace the pressure cap, and repeat steps 6.2 – 6.6. Listen for pump activation and movement of the control valves while watching the level of the coolant in the surge tank. If the tank empties, turn the ignition off, carefully remove Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE the pressure cap, refill to the indicated mark, replace the pressure cap, and repeat steps 6.2 – 6.6. The fill and air removal process will run for approximately 15 minutes. Caution If the pressure cap is not tightly installed, coolant loss and engine damage may occur. Be sure the cap is properly and tightly secured. Engine Overheating The vehicle has an indicator to warn of the engine overheating. If the decision is made not to lift the hood when this warning appears, get service help right away. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fan is running. If the engine is overheating, the fan should be running. If it is not, do not continue to run the engine. Have the vehicle serviced. Caution Do not run the engine if there is a leak in the engine cooling system. This can cause a loss of all coolant and can damage the system and vehicle. Have any leaks fixed right away. If Steam Is Coming from the Engine Compartment { Warning Steam and scalding liquids from a hot cooling system are under pressure. Turning the pressure cap, even a little, can cause them to come out at high speed and you could be burned. Never turn the cap when the cooling system, including the pressure cap, is hot. Wait for the cooling system and pressure cap to cool. 283 If No Steam Is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day . Stops after high-speed driving . Idles for long periods in traffic If the overheat warning is displayed with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the highest temperature and to the highest fan speed. Open the windows as necessary. 3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral) and let the engine idle. If the overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 284 VEHICLE CARE back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down. Washer Fluid Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview 0 270 for reservoir location. Caution . Do not use washer fluid that . What to Use When windshield washer fluid is needed, be sure to read the manufacturer's instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. . Adding Washer Fluid . . contains any type of water repellent coating. This can cause the wiper blades to chatter or skip. Do not use engine coolant (antifreeze) in the windshield washer. It can damage the windshield washer system and paint. Do not mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage the washer fluid tank and other parts of the washer system. When using concentrated washer fluid, follow the manufacturer instructions for adding water. Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid (Continued) Caution (Continued) expansion if freezing occurs, which could damage the tank if it is completely full. Brakes Disc brake linings have built-in wear indicators that make a high-pitched warning sound when the brake linings are worn and new linings are needed. The sound can come and go or can be heard all the time when the vehicle is moving, except when applying the brake pedal firmly. { Warning The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Caution Replacing Brake System Parts Continuing to drive with worn-out brake linings could result in costly brake repairs. Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance can change in many ways if the wrong brake parts are installed or if parts are improperly installed. Some driving conditions or climates can cause a brake squeal when the brakes are first applied, clearing up following several applications. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake linings for wear and evenly tighten wheel nuts in the proper sequence to torque specifications. See Capacities and Specifications 0 342. Brake pads should be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service may be required. Brake Pad Life System (If Equipped) When to Change Brake Pads This vehicle has a system that estimates the remaining life of the front and rear brake pads. Brake pad life is displayed in the Driver Information Center (DIC), along with a percentage for each axle. The system must be reset every time the brake pads are changed. When the system has determined that the brake pads need to be replaced, a message will display, which may include mileage remaining. Brake pads should always be replaced as complete axle sets. 285 How to Reset the Brake Pad Life System The system will automatically detect when significantly worn brake pads and sensors are replaced. When the ignition is turned on after new pads and sensors are installed, a message will display. Follow the prompts to reset the system. The brake pad life system can also be manually reset: 1. Display Brake Pad Life on the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 2. Press the thumbwheel. Select front or rear pads as appropriate. 3. Select YES on the confirmation message. Repeat for pads on the other axle if they were also replaced. How to Disable the Brake Pad Life System The brake pad life system can be turned off. This may be necessary if aftermarket brake pads without wear Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 286 VEHICLE CARE sensors are installed. When the system is turned off, the front and rear brake pad life percentages will not display. However, the built-in wear indicators that make a high-pitched warning sound when the brake pads are worn can still determine when the pads should be replaced. See Brakes 0 284. To turn off the brake pad life system: 1. Display Brake Pad Life on the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. 2. Select DISABLE. To turn the brake pad life system back on, follow the above steps but select ENABLE in Step 2. Brake Fluid The brake master cylinder reservoir is filled with GM approved DOT 4 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 270 for the location of the reservoir. Checking Brake Fluid With the vehicle in P (Park) on a level surface, the brake fluid level should be between the minimum and maximum marks on the brake fluid reservoir. There are only two reasons why the brake fluid level in the reservoir may go down: . Normal brake lining wear. When new linings are installed, the fluid level goes back up. . A fluid leak in the brake hydraulic system. Have the brake hydraulic system fixed. With a leak, the brakes will not work well. Always clean the brake fluid reservoir cap and the area around the cap before removing it. Do not top off the brake fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove fluid, as necessary, only when work is done on the brake hydraulic system. { Warning If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light 0 99. Brake fluid absorbs water over time which degrades the effectiveness of the brake fluid. Replace brake fluid at the specified intervals to prevent increased stopping distance. See Maintenance Schedule 0 329. What to Add Use only GM approved DOT 4 brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 337. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE { Warning The wrong or contaminated brake fluid could result in damage to the brake system. This could result in the loss of braking leading to a possible injury. Always use the proper GM approved brake fluid. When using a 12-volt battery charger on the 12-volt AGM battery, some chargers have an AGM battery setting on the charger. If available, use the AGM setting on the charger, to limit charge voltage to 14.8 volts. For replacement of the battery, see your dealer. Stop/Start System Caution If brake fluid is spilled on the vehicle's painted surfaces, the paint finish can be damaged. Immediately wash off any painted surface. Battery The original equipment battery is maintenance free. Do not remove the cap and do not add fluid. Refer to the replacement number shown on the original battery label when a new battery is needed. The vehicle has an Absorbed Glass Mat (AGM) 12-volt battery. Installation of a standard 12-volt battery will result in reduced 12-volt battery life. This vehicle has a Stop/Start system to shut off the engine to help conserve fuel. See Stop/Start System 0 206. 287 { Warning Do not use a match or flame near a vehicle's battery. If you need more light, use a flashlight. Do not smoke near a vehicle's battery. When working around a vehicle’s battery, shield your eyes with protective glasses. Keep children away from vehicle batteries. { Warning Batteries have acid that can burn you and gas that can explode. You can be hurt badly if you are not careful. Follow instructions carefully when working around a battery. Battery posts, terminals and related accessories contain lead and lead compounds which can cause cancer and reproductive harm. Wash hands after handling. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 288 VEHICLE CARE Vehicle Storage Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger. All-Wheel Drive If the vehicle is equipped with All-Wheel-Drive (AWD), this is an additional system that needs lubrication. Transfer Case Under normal driving conditions, transfer case fluid does not require maintenance unless there is a fluid leak or unusual noise. If required, have the transfer case serviced by your dealer. Park Brake and P (Park) Mechanism Check { Warning When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move. Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. . To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only. . To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake. Contact your dealer if service is required. Wiper Blade Replacement Windshield wiper blades should be inspected for wear and cracking. See Maintenance Schedule 0 329. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts 0 338. Caution Allowing the wiper arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be covered by the vehicle warranty. Do not allow the wiper arm to touch the windshield. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE To replace the windshield wiper blade: 1. Pull the windshield wiper assembly away from the windshield. Windshield Replacement HUD System The windshield is part of the HUD system. If the windshield needs to be replaced, be sure to get one that is designed for HUD or the HUD image may look out of focus. Driver Assistance Systems 2. Lift up on the latch in the middle of the wiper blade where the wiper arm attaches. 3. With the latch open, pull the wiper blade down toward the windshield far enough to release it from the J-hooked end of the wiper arm. 4. Remove the wiper blade. 5. Reverse Steps 1–3 for wiper blade replacement. If the windshield needs to be replaced and the vehicle is equipped with a front camera sensor for the Driver Assistance Systems, a GM replacement windshield is recommended. The replacement windshield must be installed according to GM specifications for proper alignment. If it is not, these systems may not work properly, they may display messages, or they may not work at all. See your dealer for proper windshield replacement. Acoustic Windshield The vehicle is equipped with an acoustic windshield. If the windshield needs to be replaced be sure to get an 289 acoustic windshield so you will continue to have the benefits an acoustic windshield can provide. Gas Strut(s) This vehicle is equipped with gas strut(s) to provide assistance in lifting and holding open the hood/trunk/ liftgate system in full open position. { Warning If the gas struts that hold open the hood, trunk, and/or liftgate fail, you or others could be seriously injured. Take the vehicle to your dealer for service immediately. Visually inspect the gas struts for signs of wear, cracks, or other damage periodically. Check to make sure the hood/trunk/liftgate is held open with enough force. If struts are failing to hold the hood/trunk/ liftgate, do not operate. Have the vehicle serviced. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 290 VEHICLE CARE Caution Headlamp Aiming Do not apply tape or hang any objects from gas struts. Also do not push down or pull on gas struts. This may cause damage to the vehicle. Front Headlamp Aiming Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your dealer. See Maintenance Schedule 0 329. Trunk Bulb Replacement For the proper type of replacement bulbs, or any bulb changing procedure not listed in this section, contact your dealer. Caution Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system. Hood Liftgate Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Halogen Bulbs { Warning Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package. High Intensity Discharge (HID) Lighting { Warning The High Intensity Discharge (HID) lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them. After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal. 291 LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer. Front Turn Signal Lamps Uplevel See your dealer for turn signal replacement. Base level To replace one of these lamps: 1. Open the hood. 2. If your vehicle is equipped with a beauty cover, remove the beauty cover to get access to the bulb. 3. Turn the bulb socket counterclockwise to remove it from the headlamp assembly. 4. Unplug the electrical connector from the bulb by releasing the clip on the connector. 5. Replace the bulb and reverse Steps 1–4 to reinstall. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 292 VEHICLE CARE Electrical System Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. Headlamp Wiring An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed. When the electrical load is too heavy a circuit breaker opens, protecting the circuit until overcurrent condition is removed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Windshield Wipers Fuses and Circuit Breakers If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop. Wiper function is available immediately after the wiper switch is set to off, and back to on. Fuses and circuit breakers protect electrical devices in the vehicle. To protect the wiper motor from overheating, the wipers may slow down when the windshield is dry for a long period of time. If a period of dry operation, or little moisture, exceeds 10 minutes, the wipers may switch to intermittent operation, and remain there. When moisture is again detected on the windshield, wiper operation will return to the operator selected speed. The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems. Replace a blown or open fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper { Danger Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. Use of an oversized fuse or circuit breaker can result in a vehicle fire. You and others could be seriously injured or killed. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating. { Warning Installation or use of fuses that do not meet GM’s original fuse specifications is dangerous. The fuses could fail, and result in a fire. You or others could be injured or killed, and the vehicle could be damaged. See Accessories and Modifications 0 267 and General Information 0 267. 293 Engine Compartment Fuse Block The engine compartment fuse block is on the driver side of the engine compartment. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as possible. Lift the fuse block cover to access the fuses. The vehicle may not be equipped with all of the fuses and relays shown. Caution Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 294 VEHICLE CARE Fuses Fuses 1 2 3 4 5 Usage Long range radar front sensor Park/Daytime running lamps Exterior lighting module 4 Exterior lighting module 7 Headlamp level Fuses Usage 13 Front wiper 14 Exterior lighting module 6 15 Exterior lighting module 1 16 Exterior lighting module 5 17 Exterior lighting module 3 18 Aero shutter 19 – 20 – 21 Virtual key system/ Power sounder module 22 Engine control module 23 Transmission control module/Transmission reverse lock out Usage 6 – 7 Electronic brake control module 8 Washer pump 9 – 10 – 24 Active engine mount 11 – 25 – 12 Horn Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Fuses Usage Fuses 44 Usage – 26 Engine control module 27 Injectors/Ignition 2 28 Charged air cooler 47 – 29 Transmission aux oil pump/Transmission reverse lock out 48 Front wiper speed 49 Front wiper control 51 – 52 Engine control module Relays Usage 30 Injectors/Ignition 1 31 Emissions 1 32 Emissions 2 53 Starter solenoid 33 Starter solenoid 54 Starter pinion 34 – 55 – 35 – 57 AC clutch 36 Starter pinion 58 – 37 AC clutch 38 – 39 – 40 – 41 – 42 Water pump 43 – 295 Instrument Panel Fuse Block The instrument panel fuse block is in the end of the driver side of the instrument panel. To access the fuses, remove the end panel by gently prying with a plastic tool near each clip, beginning at the point shown. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 296 VEHICLE CARE To install the end cover, insert the tabs on the back of the cover into the slots in the instrument panel at the points shown. Align the clips with the slots in the instrument panel, and press the cover into place. The vehicle may not be equipped with all of the fuses and relays shown. Fuses Usage Fuses Usage 1 – 7 Air quality ionizer 2 HVAC blower 8 Heated steering wheel 3 – 9 – 4 – 10 5 Theft deterrent/ Universal garage door opener Electronic steering column lock 1 11 – 12 – – 13 – 6 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Fuses Usage Fuses Usage 14 – 27 – 15 – 28 – 16 – 29 – 17 – 30 – 18 Display/Infotainment/ USB/CSM 31 Headlamp level 32 – 19 Airbag/Automatic occupant sensing/ Data link connection/ Wireless charging module 33 Body ignition/IP ignition 34 Exhaust valve 35 Transmission control module ignition/ Engine control module ignition/Shift ignition/Brake ignition 20 21 Power steering column module/ Electronic steering column lock 2 Driver monitor system/Performance data recorder 22 – 23 – 24 – 25 USB 26 – 36 Shift module 37 Body control module 1/Electronic park brake switch 38 Center stack module 39 Steering wheel controls Fuses Usage 40 Body control module 2 41 Body control module 3 42 Body control module 4 Circuit Breakers Usage CB1 Auxiliary power outlet 1 CB2 Auxiliary power outlet 2 Relays Usage 1 Run after park/ Accessory 2 Run crank 3 – 4 – 5 – 297 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 298 VEHICLE CARE Rear Compartment Fuse Block The rear compartment fuse block is behind a cover on the driver side of the rear compartment. The vehicle may not be equipped with all of the fuses, relays, and features shown. Fuses Usage 1 Remote function actuator 2 – 3 Driver heated seat 4 Fuel tank zone module 5 – 6 – 7 – 8 – 9 – 10 Motor seat belt passenger 11 Canister vent solenoid 12 Sunroof 13 – 14 – 15 Passenger heated seat 16 – Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Fuses Usage Fuses 17 Electronic suspension control 29 18 – 19 Motor seat belt driver 20 21 Usage Fuses 299 Usage – 43 Park assist module 30 – 44 31 DC to DC transformer 1 Driver memory seat module 45 OnStar Rear defog 32 46 – DC to DC transformer 2 Transfer case electronic control 47 – 33 Central gateway module/Side blind zone alert 48 – 49 – Video processing module 50 Driver seat 51 Left front/Left rear window 52 Passenger seat 22 Driver power window door lock switch 23 External object calculating module/ Front camera module/High definition localization/Short range radar 24 Passenger window door lock switch 25 – 26 Amplifier (V-series) 27 Rear drive control module 28 – 34 35 Hands free closure release 36 Exterior lighting module 2 37 Passenger memory seat module 38 – 39 Right front/Right rear window 40 – 41 – 42 Amplifier Relays 53 Usage – 54 – 55 Run Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 300 VEHICLE CARE Wheels and Tires Warning (Continued) Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer. . { Warning Poorly maintained and improperly used tires are dangerous. . Overloading the tires can cause overheating as a result of too much flexing. There could be a blowout and a serious crash. See Vehicle Load Limits 0 200. . Underinflated tires pose the same danger as overloaded tires. The resulting crash . (Continued) . . . could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when hitting a pothole. Keep tires at the recommended pressure. Worn or old tires can cause a crash. If the tread is badly worn, replace them. Replace any tires that have been damaged by impacts with potholes, curbs, etc. Improperly repaired tires can cause a crash. Only the dealer or an authorized tire service (Continued) Warning (Continued) center should repair, replace, dismount, and mount the tires. . Do not spin the tires in excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode. See Tire Pressure for High-Speed Operation 0 304 for inflation pressure adjustment for high-speed driving. All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE all-season tires can be identified by the last two characters of this TPC code, which will be “MS.” After changing to winter tires, be alert for changes in vehicle handling and braking. Consider installing winter tires on the vehicle if frequent driving on snow or ice-covered roads is expected. All-season tires provide adequate performance for most winter driving conditions, but they may not offer the same level of traction or performance as winter tires on snow or ice-covered roads. See Winter Tires 0 301. If using winter tires: . Use tires of the same brand and tread type on all four wheel positions. . Use only radial ply tires of the same size, load range, and speed rating as the original equipment tires. Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires 0 311. With winter tires, there may be decreased dry road traction, increased road noise, and shorter tread life. Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y, and ZR speed rated tires. If winter tires with a lower speed rating are chosen, never exceed the tire's maximum speed capability. Run-Flat Tires This vehicle, when new, may have had run-flat tires. There is no spare tire, no tire changing equipment, and no place to store a tire in the vehicle. 301 { Warning While driving with run-flat tires at a reduced inflation pressure, avoid making sudden stops or severe maneuvers as the handling capabilities of the tires will be reduced. Driving too fast could cause loss of control and you or others could be injured. Do not drive over 80 km/h (50 mph) with the tire operating at low pressure. Drive cautiously and check the tire pressure as soon as possible. Run-flat tires can be driven up to 80 km (50 mi) at speeds less than 80 km/h (50 mph) after a loss of inflation pressure has occurred. There is no need to stop on the side of the road to change the tire. The possible driving range after a pressure loss will vary based on the vehicle load and driving conditions. As soon as possible, contact the nearest authorized GM or run-flat servicing facility for inspection and repair or replacement. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 302 VEHICLE CARE When driving on a deflated run-flat tire, avoid potholes and other road hazards that could damage the tire and/or wheel beyond repair. When a tire has been damaged, or if driven any distance while deflated, check with an authorized run-flat tire service center to determine whether the tire can be repaired or should be replaced. To maintain the run-flat feature, all replacement tires must be run-flat tires. To locate the nearest GM or run-flat servicing facility, call Customer Assistance. Self-Sealing Tires This vehicle may have self-sealing tires. These tires have a material inside that can seal punctures from common road hazards, such as nails and screws, in the tread area. The tire may lose air pressure if the sidewall is damaged or the tread puncture is too large. If the Tire Pressure Monitor System indicates the tire pressure is low, inspect the tire for damage and inflate it to the recommended pressure. If the tire is unable to maintain the recommended pressure, contact the nearest authorized GM servicing facility immediately for inspection and repair or replacement. To locate the nearest GM servicing facility, call GM Customer Assistance. Caution Do not drive on a deflated self-sealing tire as this could damage the tire. Make sure the tire is inflated to the recommended pressure or have it immediately repaired or replaced. When tire replacement is needed replace with a self-sealing tire, because the vehicle does not come with a spare tire or tire changing equipment. Low-Profile Tires If the vehicle has 225/45R17 91V, 235/40R18 91V, or 235/40R18 XL 95Y size tires, they are classified as low-profile tires. Caution Low-profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and when possible, avoid contact with curbs, potholes, and other road hazards. Summer Tires High Performance Summer Tires This vehicle may come with 235/ 40R18 XL 95Y high performance summer tires. These tires have a special tread and compound that are optimized for maximum dry and wet road performance. This special tread and compound will have decreased performance in cold climates, and on ice and snow. It is recommended that winter tires be installed on the vehicle Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE if frequent driving at temperatures below approximately 5 °C (40 °F) or on ice or snow covered roads is expected. See Winter Tires 0 301. Tire Pressure Tires need the correct amount of air pressure to operate effectively. Caution { Warning High performance summer tires have rubber compounds that lose flexibility and may develop surface cracks in the tread area at temperatures below −7 °C (20 °F). Always store high performance summer tires indoors and at temperatures above −7 °C (20 °F) when not in use. If the tires have been subjected to −7 °C (20 °F) or less, let them warm up in a heated space to at least 5 °C (40 °F) for 24 hours or more before being installed or driving a vehicle on which they are installed. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use. See Tire Inspection 0 309. Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in: . Tire overloading and overheating, which could lead to a blowout. . Premature or irregular wear. . Poor handling. . Reduced fuel economy. Overinflated tires, or tires that have too much air, can result in: . Unusual wear. . Poor handling. . Rough ride. . Needless damage from road hazards. 303 The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity. See Vehicle Load Limits 0 200. How the vehicle is loaded affects vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry. When to Check Check the pressure of the tires once a month or more. How to Check Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 304 VEHICLE CARE the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi). TPMS sensors could be damaged and would not be covered by the vehicle warranty. Remove the valve cap from the tire valve stem. Press the tire gauge firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until the recommended pressure is reached. If the inflation pressure is high, press on the metal stem in the center of the tire valve to release air. Tire Pressure for High-Speed Operation Recheck the tire pressure with the tire gauge. Put the valve caps back on the valve stems to keep out dirt and moisture. Use only valve caps designed for the vehicle by GM. { Warning Driving at high speeds, 160 km/h (100 mph) or higher, puts additional strain on tires. Sustained high-speed driving causes excessive heat buildup and can cause sudden tire failure. This could cause a crash, and you or others could be killed. Some high-speed rated tires require inflation pressure adjustment for high-speed operation. When speed limits and road conditions allow the vehicle to be driven at high speeds, make sure the tires are rated for high-speed operation, are in excellent condition, and are set to the correct cold tire inflation pressure for the vehicle load. Vehicles with tire sizes listed in the High Speed Operation Inflation Pressures table require inflation pressure adjustment when driving the vehicle at speeds of 160 km/h (100 mph) or higher. Set the cold tire inflation pressure to the corresponding value in the table for the tire size on the vehicle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE 305 High Speed Operation Inflation Pressures Tire Size Cold Inflation Pressure kPa (psi) 225/45R17 (91V) 240 kPa (35 psi) Front 225/45R17 (91V) 280 kPa (41 psi) Rear 235/40R18 (91V) 250 kPa (36 psi) Front 235/40R18 (91V) 280 kPa (41 psi) Rear 235/40R18 (95Y) 300 kPa (44 psi) Front 235/40R18 (95Y) 340 kPa (49 psi) Rear Return the tires to the recommended cold tire inflation pressure when high-speed driving has ended. See Vehicle Load Limits 0 200 and Tire Pressure 0 303. Tire Pressure Monitor System Caution Modifications made to the Tire Pressure Monitor System (TPMS) by anyone other than an authorized service facility may void authorization to use the system. The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your vehicle's tires and transmit tire pressure readings to a receiver located in the vehicle. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 306 VEHICLE CARE the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. See Tire Pressure Monitor Operation 0 306 for additional information. Tire Pressure Monitor Operation This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare tire and wheel assembly. The TPMS sensors monitor the air pressure in the tires and transmit the tire pressure readings to a receiver located in the vehicle. When a low tire pressure condition is detected, the TPMS illuminates the low tire pressure warning light located on the instrument cluster. If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the Tire and Loading Information label. See Vehicle Load Limits 0 200. A message to check the pressure in a specific tire displays in the Driver Information Center (DIC). The low tire pressure warning light and the DIC warning message come on at each ignition cycle until the tires are inflated to the correct inflation pressure. Using the DIC, tire pressure levels can be viewed. For additional information and details about the DIC Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE operation and displays see Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. The low tire pressure warning light may come on in cool weather when the vehicle is first started, and then turn off as the vehicle is driven. This could be an early indicator that the air pressure is getting low and needs to be inflated to the proper pressure. A Tire and Loading Information label, attached to your vehicle, shows the size of the original equipment tires and the correct inflation pressure for the tires when they are cold. See Vehicle Load Limits 0 200, for an example of the Tire and Loading Information label and its location. Also see Tire Pressure 0 303. The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection 0 309, Tire Rotation 0 309 and Tires 0 300. Caution Tire sealant materials are not all the same. A non-approved tire sealant could damage the TPMS sensors. TPMS sensor damage caused by using an incorrect tire sealant is not covered by the vehicle warranty. Always use only the GM approved tire sealant available through your dealer or included in the vehicle. TPMS Malfunction Light and Message The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire pressure warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. A DIC warning message also displays. The malfunction light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause these to come on are: 307 . One of the road tires has been replaced with the spare tire. The spare tire does not have a TPMS sensor. The malfunction light and DIC message should go off after the road tire is replaced and the sensor matching process is performed successfully. See “TPMS Sensor Matching Process” later in this section. . The TPMS sensor matching process was not done or not completed successfully after rotating the tires. The malfunction light and the DIC message should go off after successfully completing the sensor matching process. . One or more TPMS sensors are missing or damaged. The malfunction light and the DIC message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service. . Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 308 VEHICLE CARE prevent the TPMS from functioning properly. See Buying New Tires 0 311. . Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction. If the TPMS is not functioning properly it cannot detect or signal a low tire pressure condition. See your dealer for service if the TPMS malfunction light and DIC message comes on and stays on. Tire Fill Alert (If Equipped) This feature provides visual and audible alerts outside the vehicle to help when inflating an underinflated tire to the recommended cold tire pressure. When the low tire pressure warning light comes on: 1. Park the vehicle in a safe, level place. 2. Set the parking brake firmly. 3. Place the vehicle in P (Park). 4. Add air to the tire that is underinflated. The turn signal lamp will flash. When the recommended pressure is reached, the horn sounds once and the turn signal lamp will stop flashing and briefly turn solid. stem. When the recommended pressure is reached, the horn sounds once. Repeat these steps for all underinflated tires that have illuminated the low tire pressure warning light. If the hazard warning flashers are on, the tire fill alert visual feedback will not work properly. { Warning Overinflating a tire could cause the tire to rupture and you or others could be injured. Do not exceed the maximum pressure listed on the tire sidewall. If the tire is overinflated by more than 35 kPa (5 psi), the horn will sound multiple times and the turn signal lamp will continue to flash for several seconds after filling stops. To release and correct the pressure, while the turn signal lamp is still flashing, briefly press the center of the valve If the turn signal lamp does not flash within 15 seconds after starting to inflate the tire, the tire fill alert has not been activated or is not working. The TPMS will not activate the tire fill alert properly under the following conditions: . There is interference from an external device or transmitter. . The air pressure from the inflation device is not sufficient to inflate the tire. . There is a malfunction in the TPMS. . There is a malfunction in the horn or turn signal lamps. . The identification code of the TPMS sensor is not registered to the system. . The battery of the TPMS sensor is low. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE If the tire fill alert does not operate due to TPMS interference, move the vehicle about 1 m (3 ft) back or forward and try again. If the tire fill alert feature is not working, use a tire pressure gauge. TPMS Sensor Matching Process — Auto Learn Function Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the tires or replacing one or more of the TPMS sensors. When a tire is installed, the vehicle must be stationary for about 20 minutes before the system recalculates. The following relearn process takes up to 10 minutes, driving at a minimum speed of 20 km/h (12 mph). A dash (-) or pressure value will display in the DIC. See Driver Information Center (DIC) (Base Level) 0 105 or Driver Information Center (DIC) (Uplevel) 0 108. A warning message displays in the DIC if a problem occurs during the relearn process. Tire Inspection Tire Rotation We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule 0 329. Replace the tire if: . The indicators at three or more places around the tire can be seen. . There is cord or fabric showing through the tire's rubber. . The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric. . The tire has a bump, bulge, or split. . The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage. 309 Tires are rotated to achieve a more uniform wear for all tires. The first rotation is the most important. Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels. If the unusual wear continues after the rotation, check the wheel alignment. See When It Is Time for New Tires 0 310 and Wheel Replacement 0 313. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 310 VEHICLE CARE Check that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications 0 342. { Warning Use this rotation pattern when rotating the tires. Adjust the front and rear tires to the recommended inflation pressure on the Tire and Loading Information label after the tires have been rotated. See Tire Pressure 0 303 and Vehicle Load Limits 0 200. Reset the Tire Pressure Monitor System. See Tire Pressure Monitor Operation 0 306. Rust or dirt on a wheel, or on the parts to which it is fastened, can cause wheel nuts to become loose over time. The wheel could come off and cause a crash. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, a cloth or paper towel can be used; however, use a scraper or wire brush later to remove all rust or dirt. Lightly coat the inner diameter of the wheel hub opening with wheel bearing grease after a wheel change or tire rotation to prevent corrosion or rust build-up. { Warning Do not apply grease to the wheel mounting surface, wheel conical seats, or the wheel nuts or bolts. Grease applied to these areas could cause a wheel to become loose or come off, resulting in a crash. When It Is Time for New Tires Factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Treadwear indicators are one way to tell when it is time for new tires. Treadwear indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining. See Tire Inspection 0 309 and Tire Rotation 0 309 for additional information. The rubber in tires ages over time. This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple factors including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. GM recommends that tires, including the spare if equipped, be replaced after six years, regardless of tread wear. To identify the age of a tire, use the tire manufacture date, which is the last four digits of the DOT Tire Identification Number (TIN) molded into one side of the tire sidewall. The last four digits of the TIN indicate the tire manufactured date. The first two digits represent the week and the last two digits, the year. For example, the third week of the year 2020 would have a 4-digit DOT date of 0320. Week 01 is the first full week (Sunday through Saturday) of each year. Vehicle Storage Tires age when stored normally mounted on a parked vehicle. Park a vehicle that will be stored for at least a month in a cool, dry, clean area away from direct sunlight to slow aging. This area should be free of grease, gasoline, or other substances that can deteriorate rubber. Parking for an extended period can cause flat spots on the tires that may result in vibrations while driving. When storing a vehicle for at least a 311 month, remove the tires or raise the vehicle to reduce the weight from the tires. Buying New Tires GM has developed and matched specific tires for the vehicle. The original equipment tires installed were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system rating. When replacement tires are needed, GM strongly recommends buying tires with the same TPC Spec rating. GM's exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of the vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM's TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires have an all-season Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 312 VEHICLE CARE tread design, the TPC Spec number will be followed by MS for mud and snow. GM recommends replacing worn tires in complete sets of four. Uniform tread depth on all tires will help to maintain the performance of the vehicle. Braking and handling performance may be adversely affected if all the tires are not replaced at the same time. If proper rotation and maintenance have been done, all four tires should wear out at about the same time. However, if it is necessary to replace only one axle set of worn tires, place the new tires on the rear axle. See Tire Rotation 0 309. { Warning Tires could explode during improper service. Attempting to mount or dismount a tire could cause injury or death. Only your (Continued) Warning (Continued) Warning (Continued) dealer or authorized tire service center should mount or dismount the tires. and cause a crash. Use only radial-ply tires with the wheels on the vehicle. { Warning Mixing tires of different sizes (other than those originally installed on the vehicle), brands, tread patterns, or types may cause loss of vehicle control, resulting in a crash or other vehicle damage. Use the correct size, brand, and type of tire on all wheels. { Warning Using bias-ply tires on the vehicle may cause the wheel rim flanges to develop cracks after many miles of driving. A tire and/or wheel could fail suddenly (Continued) Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y and ZR speed rated tires. Never exceed the winter tires’ maximum speed capability when using winter tires with a lower speed rating. If the vehicle tires must be replaced with a tire that does not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction (radial) as the original tires. The Tire and Loading Information label indicates the original equipment tires on the vehicle. See Vehicle Load Limits 0 200. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Different Size Tires and Wheels If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, and resistance to rollover may be affected. If the vehicle has electronic systems such as antilock brakes, rollover airbags, traction control, electronic stability control, or All-Wheel Drive, the performance of these systems can also be affected. { Warning If different sized wheels are used, there may not be an acceptable level of performance and safety if tires not recommended for those wheels are selected. This increases the chance of a crash and serious injury. Only use GM specific wheel and tire systems developed for the vehicle, and have them properly installed by a GM certified technician. See Buying New Tires 0 311 and Accessories and Modifications 0 267. Wheel Alignment and Tire Balance The tires and wheels were aligned and balanced at the factory to provide the longest tire life and best overall performance. Adjustments to wheel alignment and tire balancing are not necessary on a regular basis. Consider an alignment check if there is unusual tire wear or the vehicle is significantly pulling to one side or the other. Some slight pull to the left or right, depending on the crown of the road and/or other road surface variations such as troughs or ruts, is normal. If the vehicle is vibrating when driving on a smooth road, the tires and wheels may need to be rebalanced. See your dealer for proper diagnosis. Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks 313 air, replace it. Some aluminum wheels can be repaired. See your dealer if any of these conditions exist. Your dealer will know the kind of wheel that is needed. Each new wheel should have the same load-carrying capacity, diameter, width, offset, and be mounted the same way as the one it replaces. Replace wheels, wheel bolts, wheel nuts, or Tire Pressure Monitor System (TPMS) sensors with new GM original equipment parts. { Warning Using the wrong replacement wheels, wheel bolts, or wheel nuts can be dangerous. It could affect the braking and handling of the vehicle. Tires can lose air, and cause loss of control, causing a crash. Always use the correct wheel, wheel bolts, and wheel nuts for replacement. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 314 VEHICLE CARE Caution Warning (Continued) Caution (Continued) The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and chassis. used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause loss of control and a crash. Use another type of traction device only if its manufacturer recommends it for the vehicle's tire size combination and road conditions. Follow that manufacturer's instructions. To avoid vehicle damage, drive slow and readjust or remove the traction device if it contacts the vehicle. Do not spin the wheels. If traction devices are used, install them on the rear tires. 12 mm thickness to the tire tread and inner sidewall. Use chains that are the proper size for the tires. Install them on the tires of the rear axle. Don't use chains on the tires of the front axle. Tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer's instructions. If the chains contact the vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage the vehicle. Used Replacement Wheels { Warning Replacing a wheel with a used one is dangerous. How it has been used or how far it has been driven may be unknown. It could fail suddenly and cause a crash. When replacing wheels, use a new GM original equipment wheel. Tire Chains { Warning If the vehicle has 235/40R18 size tires, do not use tire chains. There is not enough clearance. Tire chains (Continued) Caution If the vehicle is equipped with a tire size other than 235/40R18, use tire chains only where legal and only when necessary. Use low profile chains that add no more than (Continued) If a Tire Goes Flat It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. If air goes out of a tire, it is much more likely to leak out slowly. See Tires 0 300 for additional information. But if there ever is a blowout, here are a few tips about what to expect and what to do: Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE If a front tire fails, the flat tire creates a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop, well off the road, if possible. 315 Warning (Continued) { Warning procedures are not used, injury or vehicle damage may occur. Always be sure the proper tools and procedures, as described in the service manual, are used. Batteries can hurt you. They can be dangerous because: . They contain acid that can burn you. . They contain gas that can A rear blowout, particularly on a curve, acts much like a skid and may require the same correction as used in a skid. Stop pressing the accelerator pedal and steer to straighten the vehicle. It may be very bumpy and noisy. Gently brake to a stop, well off the road, if possible. If the vehicle has self-sealing tires, see Self-Sealing Tires 0 302. Tread punctures typically will not cause tires to lose air. However, if the vehicle does get a flat tire, there is no spare tire, tire changing equipment, or place to store a tire. If you do not follow these steps exactly, some or all of these things can hurt you. The vehicle has no spare tire, no tire changing equipment, and no place to store a tire. Jump Starting Caution For more information about the vehicle battery, see Battery 0 287. Ignoring these steps could result in costly damage to the vehicle that would not be covered by the vehicle warranty. Trying to start the vehicle by pushing or pulling it will not work, and it could damage the vehicle. If the vehicle has run-flat tires, there is no need to stop on the side of the road to change a flat tire. See Run-Flat Tires 0 301. { Warning Special tools and procedures are required to service a run-flat tire. If these special tools and (Continued) If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely. explode or ignite. . They contain enough electricity to burn you. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 316 VEHICLE CARE The jump start remote positive terminal (1) and the remote negative grounding point (2) for the discharged battery are on the passenger side of the vehicle. 2.0L L4 Engine Shown, 2.7L L4 Engine Similar 1. Discharged Battery Remote Positive Terminal 2. Discharged Battery Negative Grounding Terminal 3. Good Battery Negative Terminal 4. Good Battery Positive Terminal The jump start positive terminal (4) and negative post (3) are on the battery of the vehicle providing the jump start. The positive jump start connection for the discharged battery is under a cover. Lift the cover to expose the terminal. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. Caution If the other vehicle does not have a 12-volt system with a negative ground, both vehicles can be damaged. Only use a vehicle that has a 12-volt system with a negative ground for jump starting. 2. Position the two vehicles so that they are not touching. 3. Set the parking brake firmly and put the shift lever in P (Park) with an automatic transmission, or Neutral with a manual transmission. Caution If any accessories are left on or plugged in during the jump starting procedure, they could be damaged. The repairs would not be covered by the vehicle warranty. Whenever possible, turn off or unplug all accessories on either vehicle when jump starting. 4. Turn the ignition off. Turn off all lights and accessories in both vehicles, except the hazard warning flashers if needed. { Warning An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing, and tools away from any underhood electric fan. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE { Warning Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Battery fluid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately. { Warning Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running. 5. Connect one end of the red positive (+) cable to the remote positive (+) terminal on the discharged battery. 6. Connect the other end of the red positive (+) cable to the positive (+) terminal of the good battery. 7. Connect one end of the black negative (–) cable to the negative (–) terminal of the good battery. Do not let the other end touch anything until the next step. The other end of the negative (–) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part. 8. Connect the other end of the black negative (–) cable to the negative (–) grounding point for the discharged battery. 9. Start the engine in the vehicle with the good battery and run the engine at idle speed for at least four minutes. 10. Try to start the vehicle that had the dead battery. If it will not start after a few tries, it probably needs service. Caution If the jumper cables are connected or removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs (Continued) 317 Caution (Continued) would not be covered by the vehicle warranty. Always connect and remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal. Jumper Cable Removal Reverse the sequence exactly when removing the jumper cables. After starting the disabled vehicle and removing the jumper cables, allow it to idle for several minutes. Towing the Vehicle Caution Incorrectly towing a disabled vehicle may cause damage. The damage would not be covered by the vehicle warranty. Do not lash or hook to suspension components. Use the proper straps around the tires to secure the vehicle. Do not drag a locked wheel/tire. Use tire (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 318 VEHICLE CARE Caution (Continued) Front Tow Eye skates or dollies under any locked wheel/tire while loading the vehicle. Do not use a sling type lift to tow the vehicle. This could damage the vehicle. GM recommends a flatbed tow truck to transport a disabled vehicle. Use ramps to help reduce approach angles, if necessary. A towed vehicle should have its drive wheels off the ground. Contact a professional towing service if the disabled vehicle must be towed. To tow the vehicle behind another vehicle for recreational purposes, such as behind a motor home, see Recreational Vehicle Towing 0 319. a flat road surface. Do not use the tow eye to pull the vehicle from snow, mud, or sand. The tow eye is located under the carpet in the trunk. Carefully open the cover in the fascia by using the small notch that conceals the tow eye socket. Install the tow eye into the socket and turn it until it is fully tightened. When the tow eye is removed, reinstall the cover with the notch in the original position. Rear Tow Eye Caution Improper use of the tow eye can damage the vehicle. If equipped, use the tow eye to load a disabled vehicle onto a flatbed tow truck from a flat road surface, or to move the vehicle a short distance. Use caution and low speeds. The transmission must be in (N) Neutral when moving the vehicle. The vehicle is equipped with a tow eye. Only use the tow eye to pull the vehicle onto a flatbed car carrier from Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE If equipped, carefully open the cover by using the small notch that conceals the rear tow eye socket. Install the tow eye into the socket and turn it until it is fully tightened. When the tow eye is removed, reinstall the cover with the notch in the original position. Recreational Vehicle Towing Appearance Care Caution (Continued) Exterior Care safety precautions, and appropriate disposal of any vehicle care product. Locks Locks are lubricated at the factory. Use a de-icing agent only when absolutely necessary, and have the locks greased after using. See Recommended Fluids and Lubricants 0 337. Caution Washing the Vehicle Dolly towing or dinghy towing the vehicle may cause damage because of reduced ground clearance. Always put the vehicle on a flatbed truck or trailer. To preserve the vehicle's finish, wash it often and out of direct sunlight. The vehicle was neither designed nor intended to be towed with any of its wheels on the ground. If the vehicle must be towed, see Towing the Vehicle 0 317. 319 Caution Avoid using high-pressure washes closer than 30 cm (12 in) to the surface of the vehicle. Use of power washers exceeding 8 274 kPa (1,200 psi) can result in damage or removal of paint and decals. Caution Caution Do not use petroleum-based, acidic, or abrasive cleaning agents as they can damage the vehicle's paint, metal, or plastic parts. If damage occurs, it would not be covered by the vehicle warranty. Approved cleaning products can be obtained from your dealer. Follow all manufacturer directions regarding correct product usage, necessary (Continued) Some automatic car washes can cause damage to the vehicle, wheels and ground effects. Automatic car washes are not recommended, due to lack of clearance for the undercarriage and/or wide rear tires and wheels. If using an automatic car wash, follow the car wash instructions. The windshield wiper and rear window wiper, if equipped, must be off. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 320 VEHICLE CARE Remove any accessories that may be damaged or interfere with the car wash equipment. Rinse the vehicle well, before washing and after, to remove all cleaning agents completely. If they are allowed to dry on the surface, they could stain. Dry the finish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. Cleaning Underhood Components Caution Do not power wash any component under the hood that has this e symbol. This could cause damage that would not be covered by the vehicle warranty. Solvents or aggressive cleaners may harm underhood components. The usages of these chemicals should be avoided. Recommend water only. A pressure washer may be used, but care must be utilized. The following criteria must be followed: . Water pressure must be kept below 14 000 KPa (2,000 PSI). . Water temperature must be below 80 °C (180 °F). . Spray nozzle with a 40 degree wide angle spray pattern or wider must be used. . Nozzle must be kept at least 30 cm (1 ft) away from all surfaces. Finish Care Application of aftermarket clearcoat sealant/wax materials is not recommended. If painted surfaces are damaged, see your dealer to have the damage assessed and repaired. Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage the vehicle's finish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Occasional hand waxing or mild polishing should be done to remove residue from the paint finish. See your dealer for approved cleaning products. Do not apply waxes or polishes to uncoated plastic, vinyl, rubber, decals, simulated wood, or flat paint as damage can occur. Caution Machine compounding or aggressive polishing on a basecoat/ clearcoat paint finish may damage it. Use only non-abrasive waxes and polishes that are made for a basecoat/clearcoat paint finish on the vehicle. To keep the paint finish looking new, keep the vehicle garaged or covered whenever possible. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Carbon Fiber Care Carbon fiber composite parts can be washed and waxed like any other parts. Use a clear or black pigmented wax. See Composite Materials 0 203. Protecting Exterior Bright Metal Moldings Caution Failure to clean and protect the bright metal moldings can result in a hazy white finish or pitting. This damage would not be covered by the vehicle warranty. The bright metal moldings on the vehicle are aluminum, chrome or stainless steel. To prevent damage always follow these cleaning instructions: . Be sure the molding is cool to the touch before applying any cleaning solution. . Use only approved cleaning solutions for aluminum, chrome or stainless steel. Some cleaners are highly acidic or contain alkaline substances and can damage the moldings. . Always dilute a concentrated cleaner according to the manufacturer’s instructions. . Do not use cleaners that are not intended for automotive use. . Use a nonabrasive wax on the vehicle after washing to protect and extend the molding finish. Cleaning Exterior Lamps/Lenses, Emblems, Decals, and Stripes Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean exterior lamps, lenses, emblems, decals, and stripes. Follow instructions under "Washing the Vehicle" previously in this section. Lamp covers are made of plastic, and some have a UV protective coating. Do not clean or wipe them when dry. Do not use any of the following on lamp covers: . Abrasive or caustic agents. . Washer fluids and other cleaning agents in higher concentrations than suggested by the manufacturer. . Solvents, alcohols, fuels, or other harsh cleaners. 321 . Ice scrapers or other hard items. . Aftermarket appearance caps or covers while the lamps are illuminated, due to excessive heat generated. Caution Failure to clean lamps properly can cause damage to the lamp cover that would not be covered by the vehicle warranty. Caution Using wax on low gloss black finish stripes can increase the gloss level and create a non-uniform finish. Clean low gloss stripes with soap and water only. Air Intakes Clear debris from the air intakes, between the hood and windshield, when washing the vehicle. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 322 VEHICLE CARE Shutter System Bugs, road grime, sap, and a buildup of vehicle wash/wax treatments may cause wiper streaking. Replace the wiper blades if they are worn or damaged. Damage can be caused by extreme dusty conditions, sand, salt, heat, sun, snow, and ice. Weatherstrips The vehicle may have a shutter system designed to help improve fuel economy. Keep the shutter system clear of debris, snow and ice. If the check engine light is activated, please check to see if the shutter system is clear of debris, snow or ice. Windshield and Wiper Blades Clean the outside of the windshield with glass cleaner. Clean rubber blades using a lint-free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroughly when cleaning the blades. Apply weatherstrip lubricant on weatherstrips to make them last longer, seal better, and not stick or squeak. Lubricate weatherstrips at least once a year. Hot, dry climates may require more frequent application. Black marks from rubber material on painted surfaces can be removed by rubbing with a clean cloth. See Recommended Fluids and Lubricants 0 337. Tires Use a stiff brush with tire cleaner to clean the tires. Caution Using petroleum-based tire dressing products on the vehicle may damage the paint finish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on the vehicle. Wheels and Wheel Trim Use a soft, clean cloth with mild soap and water to clean the wheels. After rinsing thoroughly with clean water, dry with a soft, clean towel. A wax may then be applied. Caution Chrome wheels and chrome wheel trim may be damaged if the vehicle is not washed after driving on roads that have been sprayed with magnesium chloride or calcium chloride. These are used on roads for conditions such as dust and ice. Always wash the chrome with soap and water after exposure. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Caution To avoid surface damage on wheels and wheel trim, do not use strong soaps, chemicals, abrasive polishes, cleaners, or brushes. Use only GM approved cleaners. Do not drive the vehicle through an automatic car wash that uses silicon carbide tire/ wheel cleaning brushes. Damage could occur and the repairs would not be covered by the vehicle warranty. Brake System Visually inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect drum brake linings/ shoes for wear or cracks. Inspect all other brake parts. Steering, Suspension, and Chassis Components Visually inspect steering, suspension, and chassis components for damaged, loose, or missing parts or signs of wear at least once a year. 323 Inspect power steering for proper attachment, connections, binding, leaks, cracks, chafing, etc. the fluid. Contaminated fluid will decrease the life of the transfer case and/or axles and should be replaced Visually check constant velocity joint boots and axle seals for leaks. Sheet Metal Damage Body Component Lubrication Lubricate all key lock cylinders, hood hinges, liftgate hinges, and the steel fuel door hinge, unless the components are plastic. Applying silicone grease on weatherstrips with a clean cloth will make them last longer, seal better, and not stick or squeak. If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection. Original manufacturer replacement parts will provide the corrosion protection while maintaining the vehicle warranty. Underbody Maintenance Finish Damage At least twice a year, spring and fall, use plain water to flush any corrosive materials from the underbody. Take care to thoroughly clean any areas where mud and other debris can collect. Quickly repair minor chips and scratches with touch-up materials available from your dealer to avoid corrosion. Larger areas of finish damage can be corrected in your dealer's body and paint shop. Do not directly power wash the transfer case and/or front/rear axle output seals. High pressure water can overcome the seals and contaminate Chemical Paint Spotting Airborne pollutants can fall upon and attack painted vehicle surfaces causing blotchy, ring-shaped discolorations, and small, irregular Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 324 VEHICLE CARE dark spots etched into the paint surface. See “Finish Care” previously in this section. Interior Care To prevent dirt particle abrasions, regularly clean the vehicle's interior. Immediately remove any soils. Newspapers or dark garments can transfer color to the vehicle’s interior. Use a soft bristle brush to remove dust from knobs and crevices on the instrument cluster. Using a mild soap solution, immediately remove hand lotions, sunscreen, and insect repellent from all interior surfaces or permanent damage may result. Use cleaners specifically designed for the surfaces being cleaned to prevent permanent damage. Apply all cleaners directly to the cleaning cloth. Do not spray cleaners on any switches or controls. Remove cleaners quickly. Before using cleaners, read and follow all safety instructions on the label. While cleaning the interior, open the doors and windows to get proper ventilation. To prevent damage, do not clean the interior using the following cleaners or techniques: . Never use a razor or any other sharp object to remove soil from any interior surface. . Never use a brush with stiff bristles. . Never rub any surface aggressively or with too much pressure. . Do not use laundry detergents or dishwashing soaps with degreasers. For liquid cleaners, use approximately 20 drops per 3.8 L (1 gal) of water. A concentrated soap solution will create streaks and attract dirt. Do not use solutions that contain strong or caustic soap. . Do not heavily saturate the upholstery when cleaning. . Do not use solvents or cleaners containing solvents. Interior Glass To clean, use a terry cloth fabric dampened with water. Wipe droplets left behind with a clean dry cloth. If necessary, use a commercial glass cleaner after cleaning with plain water. Caution To prevent scratching, never use abrasive cleaners on automotive glass. Abrasive cleaners or aggressive cleaning may damage the rear window defogger. Cleaning the windshield with water during the first three to six months of ownership will reduce tendency to fog. Speaker Covers Vacuum around a speaker cover gently, so that the speaker will not be damaged. Clean spots with water and mild soap. Coated Moldings Coated moldings should be cleaned. . When lightly soiled, wipe with a sponge or soft, lint-free cloth dampened with water. . When heavily soiled, use warm soapy water. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE Fabric/Carpet/Suede Start by vacuuming the surface using a soft brush attachment. If a rotating vacuum brush attachment is being used, only use it on the floor carpet. Before cleaning, gently remove as much of the soil as possible: . Gently blot liquids with a paper towel. Continue blotting until no more soil can be removed. . For solid soils, remove as much as possible prior to vacuuming. To clean: 1. Saturate a clean, lint-free colorfast cloth with water. Microfiber cloth is recommended to prevent lint transfer to the fabric or carpet. 2. Remove excess moisture by gently wringing until water does not drip from the cleaning cloth. 3. Start on the outside edge of the soil and gently rub toward the center. Fold the cleaning cloth to a clean area frequently to prevent forcing the soil in to the fabric. 4. Continue gently rubbing the soiled area until there is no longer any color transfer from the soil to the cleaning cloth. 5. If the soil is not completely removed, use a mild soap solution followed only by plain water. If the soil is not completely removed, it may be necessary to use a commercial upholstery cleaner or spot lifter. Test a small hidden area for colorfastness before using a commercial upholstery cleaner or spot lifter. If ring formation occurs, clean the entire fabric or carpet. After cleaning, use a paper towel to blot excess moisture. Cleaning High Gloss Surfaces and Vehicle Information and Radio Displays Use a microfiber cloth on high gloss surfaces or vehicle displays. First, use a soft bristle brush to remove dirt that can scratch the surface. Then gently clean by rubbing with a microfiber cloth. Never use window cleaners or solvents. Periodically hand wash the microfiber cloth separately, using mild 325 soap. Do not use bleach or fabric softener. Rinse thoroughly and air dry before next use. Caution Do not attach a device with a suction cup to the display. This may cause damage and would not be covered by the vehicle warranty. Instrument Panel, Leather, Vinyl, Other Plastic Surfaces, Low Gloss Paint Surfaces, and Natural Open Pore Wood Surfaces Use a soft microfiber cloth dampened with water to remove dust and loose dirt. For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap solution. Caution Soaking or saturating leather, especially perforated leather, as well as other interior surfaces, may cause permanent damage. Wipe excess moisture from these surfaces (Continued) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 326 VEHICLE CARE Caution (Continued) after cleaning and allow them to dry naturally. Never use heat, steam, or spot removers. Do not use cleaners that contain silicone or wax-based products. Cleaners containing these solvents can permanently change the appearance and feel of leather or soft trim, and are not recommended. Do not use cleaners that increase gloss, especially on the instrument panel. Reflected glare can decrease visibility through the windshield under certain conditions. Caution Use of air fresheners may cause permanent damage to plastics and painted surfaces. If an air freshener comes in contact with any plastic or painted surface in the vehicle, blot immediately and clean with a soft cloth dampened with a mild soap solution. Damage caused by air fresheners would not be covered by the vehicle warranty. Cargo Cover and Convenience Net Warning (Continued) If equipped, wash with warm water and mild detergent. Do not use chlorine bleach. Rinse with cold water, and then dry completely. cause unintended acceleration and/ or increased stopping distance which can cause a crash and injury. Make sure the floor mat does not interfere with the pedals. Care of Seat Belts Keep belts clean and dry. { Warning Do not bleach or dye seat belt webbing. It may severely weaken the webbing. In a crash, they might not be able to provide adequate protection. Clean and rinse seat belt webbing only with mild soap and lukewarm water. Allow the webbing to dry. Floor Mats { Warning If a floor mat is the wrong size or is not properly installed, it can interfere with the pedals. Interference with the pedals can (Continued) Use the following guidelines for proper floor mat usage. . The original equipment floor mats were designed for your vehicle. If the floor mats need replacing, it is recommended that GM certified floor mats be purchased. Non-GM floor mats may not fit properly and may interfere with the pedals. Always check that the floor mats do not interfere with the pedals. . Do not use a floor mat if the vehicle is not equipped with a floor mat retainer on the driver side floor. . Use the floor mat with the correct side up. Do not turn it over. . Do not place anything on top of the driver side floor mat. . Use only a single floor mat on the driver side. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 VEHICLE CARE . Do not place one floor mat on top of another. The floor mats are held in place by button-type retainers. Removing and Replacing the Floor Mats 1. Pull up on the rear of the floor mat to unlock the retainers and remove. 2. Reinstall by lining up the floor mat retainer openings over the carpet retainers and snap into position. 3. Make sure the floor mat is properly secured in place. Verify the floor mat does not interfere with the pedals. Cleaning Rubber Floor Mats (All-Weather Mats and Floor Liners) { Warning Do not use cleaners that contain silicone, wax-based products, or cleaners that increase gloss on rubber floor mats/liners. These cleaners can permanently change the appearance and feel of the rubber and can make the floor mats/liners slippery. Your foot could slip while operating the vehicle, and you could lose control, resulting in a crash. You or others could be injured. Use a soft cloth and/or a brush dampened with water to remove dust and loose dirt. For more thorough cleaning, use a mild soap solution. 327 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 328 SERVICE AND MAINTENANCE Service and Maintenance General Information General Information . . . . . . . . . . . . . 328 Maintenance Schedule Maintenance Schedule . . . . . . . . . . . 329 Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . 337 Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 Maintenance Records Maintenance Records . . . . . . . . . . . . 340 General Information Your vehicle is an important investment. This section describes the required maintenance for the vehicle. Follow this schedule to help protect against major repair expenses resulting from neglect or inadequate maintenance. It may also help to maintain the value of the vehicle if it is sold. It is the responsibility of the owner to have all required maintenance performed. Your dealer has trained technicians who can perform required maintenance using genuine replacement parts. They have up-to-date tools and equipment for fast and accurate diagnostics. Many dealers have extended evening and Saturday hours, courtesy transportation, and online scheduling to assist with service needs. Your dealer recognizes the importance of providing competitively priced maintenance and repair services. With trained technicians, the dealer is the place for routine maintenance such as oil changes and tire rotations and additional maintenance items like tires, brakes, batteries, and wiper blades. Caution Damage caused by improper maintenance can lead to costly repairs and may not be covered by the vehicle warranty. Maintenance intervals, checks, inspections, recommended fluids, and lubricants are important to keep the vehicle in good working condition. Do not have chemical flushes that are not approved by GM performed on the vehicle. The use of flushes, solvents, cleaners, or lubricants that are not approved by GM could damage the vehicle, requiring expensive repairs that are not covered by the vehicle warranty. The Tire Rotation and Required Services are the responsibility of the vehicle owner. It is recommended to have your dealer perform these services every 12 000 km/7,500 mi. Proper vehicle maintenance helps to Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SERVICE AND MAINTENANCE keep the vehicle in good working condition, improves fuel economy, and reduces vehicle emissions. Because of the way people use vehicles, maintenance needs vary. There may need to be more frequent checks and services. The Additional Required Services - Normal are for vehicles that: . Carry passengers and cargo within recommended limits on the Tire and Loading Information label. See Vehicle Load Limits 0 200. . Are driven on reasonable road surfaces within legal driving limits. . Use the recommended fuel. See Recommended Fuel (L3B 2.7L L4 Turbo Engine) 0 262 or Recommended Fuel (LSY 2.0L L4 Turbo Engine) 0 261. Refer to the information in the Maintenance Schedule Additional Required Services - Normal chart. The Additional Required Services Severe are for vehicles that are: . Mainly driven in heavy city traffic in hot weather. . Mainly driven in hilly or mountainous terrain. . Used for high speed or competitive driving. . Used for taxi, police, or delivery service. Refer to the information in the Maintenance Schedule Additional Required Services - Severe chart. { Warning Performing maintenance work can be dangerous and can cause serious injury. Perform maintenance work only if the required information, proper tools, and equipment are available. If they are not, see your dealer to have a trained technician do the work. See Doing Your Own Service Work 0 267. Maintenance Schedule Owner Checks and Services Check the engine oil level. See Engine Oil 0 273. 329 Once a Month . Check the tire inflation pressures. See Tire Pressure 0 303. . Inspect the tires for wear. See Tire Inspection 0 309. . Check the windshield washer fluid level. See Washer Fluid 0 284. Engine Oil Change Change the engine oil and filter when the CHANGE ENGINE OIL SOON message displays, 12 000 km (7,500 mi), or at one year, whichever comes first. If driven under the best conditions, the engine oil life system may not indicate the need for vehicle service for up to a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset. Your trained dealer technician can perform this work. If the engine oil life system is reset accidentally, service the vehicle within 5 000 km (3,000 mi) since the last service. Reset the oil life system when the oil is changed. See Engine Oil Life System 0 275. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 330 SERVICE AND MAINTENANCE Air Conditioning Desiccant (Replace Every Seven Years) The air conditioning system requires maintenance every seven years. This service requires replacement of the desiccant to help the longevity and efficient operation of the air conditioning system. This service can be complex. See your dealer. . . . Tire Rotation and Required Services Every 12 000 km (7,500 mi) . Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation 0 309. . Check engine oil level and oil life percentage. If needed, change engine oil and filter, and reset oil life system. See Engine Oil 0 273 and Engine Oil Life System 0 275. . If equipped, check the air filter life percentage. If necessary, replace the engine air filter and reset the engine air filter life system. See Engine Air Filter Life System 0 276. If the vehicle is not equipped with . . . . . the engine air filter life system, inspect the engine air cleaner filter. See Engine Air Cleaner/Filter 0 277. Inspect the engine air cleaner filter. See Engine Air Cleaner/Filter 0 277. Check engine coolant level. See Cooling System 0 278. Check windshield washer fluid level. See Washer Fluid 0 284. Check tire inflation pressures. See Tire Pressure 0 303. Inspect tire wear. See Tire Inspection 0 309. Visually check for fluid leaks. Inspect brake system. See Exterior Care 0 319. Visually inspect steering, suspension, and chassis components for damage, including cracks or tears in the rubber boots, loose or missing parts, or signs of wear at least once a year. See Exterior Care 0 319. Inspect power steering for proper attachment, connections, binding, leaks, cracks, chafing, etc. . Visually inspect halfshafts and . . . . . . . driveshafts for excessive wear, lubricant leaks, and/or damage including: tube dents or cracks, constant velocity joint or universal joint looseness, cracked or missing boots, loose or missing boot clamps, center bearing excessive looseness, loose or missing fasteners, and axle seal leaks. Check restraint system components. See Safety System Check 0 45. Visually inspect fuel system for damage or leaks. Visually inspect exhaust system and nearby heat shields for loose or damaged parts. Lubricate body components. See Exterior Care 0 319. Check parking brake and automatic transmission park mechanism. See Park Brake and P (Park) Mechanism Check 0 288. Check accelerator pedal for damage, high effort, or binding. Replace if needed. Inspect sunroof track and seal, if equipped. See Sunroof 0 27. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SERVICE AND MAINTENANCE . Visually inspect the gas struts for signs of wear, cracks, or other damage. Check the hold open ability of the strut. If the hold open is low, service the gas strut. See Gas Strut(s) 0 289. 331 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 2 4 000 k m/ 15,000 mi 3 6 000 k m/ 22,500 mi 4 8 000 k m/ 30,000 mi 6 0 000 k m/ 37,500 mi 7 2 000 k m/ 45,000 mi 8 4 000 k m/ 52,500 mi 9 6 000 k m/ 60,000 mi 1 0 8 000 k m/ 67,500 mi 1 2 0 000 k m/ 75,000 mi 1 3 2 000 k m/ 82,500 mi 1 4 4 000 k m/ 90,000 mi 1 5 6 000 k m/ 97,500 mi 1 6 8 000 k m/ 105,000 mi 1 8 0 000 k m/ 112,500 mi 1 9 2 000 k m/ 120,000 mi 2 0 4 000 k m/ 127,500 mi 2 1 6 000 k m/ 135,000 mi 2 2 8 000 k m/ 142,500 mi 2 4 0 000 k m/ 150,000 mi SERVICE AND MAINTENANCE 12 000 k m/ 7,500 mi 332 Rotate tires, if recommended for the vehicle, and perform Required Services. (1) Check engine oil level and oil life percentage. Change engine oil and filter, if needed. If equipped, check engine air filter life percentage and status. Change engine air filter, if needed. @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ Replace passenger compartment air filter. (2) @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ Maintenance Schedule Additional Required Services Normal If the vehicle is not equipped with the engine air filter life system, replace engine air cleaner filter. (3) @ Inspect evaporative control system. (4) @ Replace spark plugs. Inspect spark plug wires and/or boots. @ @ @ @ @ @ Change transfer case fluid, if equipped with AWD. (5) @ Change rear axle fluid, if equipped with limited slip differential. (5) @ @ @ Change rear axle fluid, without limited slip differential. (5) @ Change front axle fluid, if equipped with AWD. (5) @ Drain and fill engine cooling system. (6) @ Visually inspect accessory drive belts. (7) @ Replace brake fluid. (8) Replace windshield wiper blades. (9) @ @ @ @ @ @ @ @ @ @ Replace air conditioning desiccant. (10) Replace hood and/or body lift support gas struts. (11) @ @ Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SERVICE AND MAINTENANCE Footnotes — Maintenance Schedule Additional Required Services Normal (1) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation 0 309. (2) Or every 12 months, whichever comes first. More frequent passenger compartment air filter replacement may be needed if driving in areas with heavy traffic, poor air quality, high dust levels, or environmental allergens. Passenger compartment air filter replacement may also be needed if there is reduced airflow, window fogging, or odors. Your GM dealer can help determine when to replace the filter. (3) Or every four years, whichever comes first. If driving in dusty conditions, inspect the filter at each oil change or more often as needed. See Engine Air Cleaner/Filter 0 277. (4) Visually check all fuel and vapor lines and hoses for proper attachment, connection, routing, and condition. (5) Do not directly power wash the transfer case and/or front/rear axle output seals. High pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and/or axles and should be replaced. (6) Or every five years, whichever comes first. See Cooling System 0 278. (7) Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed. (8) Replace brake fluid every five years. See Brake Fluid 0 286. (9) Or every 12 months, whichever comes first. See Wiper Blade Replacement 0 288. (10) Replace air conditioning desiccant every seven years. (11) Or every 10 years, whichever comes first. See Gas Strut(s) 0 289. 333 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 2 4 000 k m/ 15,000 mi 3 6 000 k m/ 22,500 mi 4 8 000 k m/ 30,000 mi 6 0 000 k m/ 37,500 mi 7 2 000 k m/ 45,000 mi 8 4 000 k m/ 52,500 mi 9 6 000 k m/ 60,000 mi 1 0 8 000 k m/ 67,500 mi 1 2 0 000 k m/ 75,000 mi 1 3 2 000 k m/ 82,500 mi 1 4 4 000 k m/ 90,000 mi 1 5 6 000 k m/ 97,500 mi 1 6 8 000 k m/ 105,000 mi 1 8 0 000 k m/ 112,500 mi 1 9 2 000 k m/ 120,000 mi 2 0 4 000 k m/ 127,500 mi 2 1 6 000 k m/ 135,000 mi 2 2 8 000 k m/ 142,500 mi 2 4 0 000 k m/ 150,000 mi SERVICE AND MAINTENANCE 12 000 k m/ 7,500 mi 334 Rotate tires, if recommended for the vehicle, and perform Required Services. (1) Check engine oil level and oil life percentage. Change engine oil and filter, if needed. If equipped, check engine air filter life percentage and status. Change engine air filter, if needed. @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ Replace passenger compartment air filter. (2) @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ Maintenance Schedule Additional Required Services Severe If the vehicle is not equipped with the engine air filter life system, replace engine air cleaner filter. (3) @ Inspect evaporative control system. (4) @ Replace spark plugs. Inspect spark plug wires and/or boots. @ @ @ @ @ @ Change automatic transmission fluid and filter. @ @ @ Change transfer case fluid, if equipped with AWD. (5) @ @ @ Change rear axle fluid, if equipped with limited slip differential. (5) @ @ @ Change rear axle fluid, without limited slip differential. (5) @ @ Change front axle fluid, if equipped with AWD. (5) @ @ @ Drain and fill engine cooling system. (6) @ Visually inspect accessory drive belts. (7) @ Replace brake fluid. (8) Replace windshield wiper blades. (9) @ @ @ @ @ @ @ @ @ @ Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 2 4 0 0 00 k m/ 150,000 mi 335 2 2 8 0 00 k m/ 142,500 mi 2 1 6 0 00 k m/ 135,000 mi 2 0 4 0 00 k m/ 127,500 mi 1 9 2 0 00 k m/ 120,000 mi 1 8 0 0 00 k m/ 112,500 mi 1 6 8 0 00 k m/ 105,000 mi 1 5 6 000 k m/ 97,500 mi 1 4 4 000 k m/ 90,000 mi 1 3 2 000 k m/ 82,500 mi 1 2 0 000 k m/ 75,000 mi 1 0 8 000 k m/ 67,500 mi 9 6 000 k m/ 60,000 mi 8 4 000 k m/ 52,500 mi 7 2 000 k m/ 45,000 mi 6 0 000 k m/ 37,500 mi 4 8 000 k m/ 30,000 mi 3 6 000 k m/ 22,500 mi 2 4 000 k m/ 15,000 mi Maintenance Schedule Additional Required Services Severe 1 2 000 k m/ 7,500 mi SERVICE AND MAINTENANCE Replace air conditioning desiccant. (10) Replace hood and/or body lift support gas struts. (11) @ @ Footnotes — Maintenance Schedule Additional Required Services Severe fogging, or odors. Your GM dealer can help determine when to replace the filter. fluid will decrease the life of the transfer case and/or axles and should be replaced. (1) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation 0 309. (3) Or every four years, whichever comes first. If driving in dusty conditions, inspect the filter at each oil change or more often as needed. See Engine Air Cleaner/Filter 0 277. (6) Or every five years, whichever comes first. See Cooling System 0 278. (2) Or every 12 months, whichever comes first. More frequent passenger compartment air filter replacement may be needed if driving in areas with heavy traffic, poor air quality, high dust levels, or environmental allergens. Passenger compartment air filter replacement may also be needed if there is reduced airflow, window (4) Visually check all fuel and vapor lines and hoses for proper attachment, connection, routing, and condition. (5) Do not directly power wash the transfer case and/or front/rear axle output seals. High pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated (7) Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed. (8) Replace brake fluid every five years. See Brake Fluid 0 286. (9) Or every 12 months, whichever comes first. See Wiper Blade Replacement 0 288. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 336 SERVICE AND MAINTENANCE (10) Replace air conditioning desiccant every seven years. (11) Or every 10 years, whichever comes first. See Gas Strut(s). See Gas Strut(s) 0 289. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SERVICE AND MAINTENANCE 337 Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer. Usage Fluid/Lubricant Automatic Transmission (8-Speed Transmission) DEXRON-HP Automatic Transmission Fluid. Automatic Transmission (10-Speed Transmission) DEXRON ULV Automatic Transmission Fluid. Chassis Lubrication Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System 0 278. Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil 0 273. Hood Latch Assembly, Secondary Latch, Lubriplate Lubricant Aerosol or lubricant meeting requirements of NLGI #2, Pivots, Spring Anchor, and Release Pawl Category LB or GC-LB. Hydraulic Brake System Key Lock Cylinders, Hood and Door Hinges Rear Axle/Front Axle (All-Wheel Drive) Transfer Case (All-Wheel Drive) DOT 4 Hydraulic Brake Fluid. Multi-Purpose Lubricant, Superlube. See your dealer. See your dealer. Transfer Case Fluid. See your dealer. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 338 SERVICE AND MAINTENANCE Usage Fluid/Lubricant Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements. Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer. Part GM Part Number ACDelco Part Number 84498926 A3245C 84498926 A3245C 55495105 PF66 55495105 PF66 13508023 CF185 Engine Air Cleaner/Filter I2.0L L4 Engine I2.7L L4 Engine Engine Oil Filter I2.0L L4 engine I2.7L L4 engine Passenger Compartment Air Filter IParticulate Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 SERVICE AND MAINTENANCE Part GM Part Number ACDelco Part Number 23195727 CF184 55504354 41–103–IP 12688094 41–106–IP 84613732 — 84574892 — ICarbon Spark Plugs I2.0L L4 engine I2.7L L4 engine Wiper Blades IDriver Side – 55 cm (22 in) IPassenger Side – 45 cm (18 in) 339 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 340 SERVICE AND MAINTENANCE Maintenance Records After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance receipts. Date Odometer Reading Serviced By Maintenance Stamp Services Performed Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 TECHNICAL DATA 341 Technical Data Vehicle Identification Service Parts Identification Vehicle Identification Vehicle Identification Number (VIN) There may be a large barcode on the certification label on the center pillar that you can scan for the following information: . Vehicle Identification Number (VIN) . Model designation . Paint information . Production options Vehicle Identification Number (VIN) . . . . . . . . . . . . . . . . . . . 341 Service Parts Identification . . . . . . 341 Vehicle Data Capacities and Specifications . . . . 342 Engine Drive Belt Routing . . . . . . . 345 This legal identifier is in the front corner of the instrument panel, on the driver side of the vehicle. It can be seen through the windshield from outside. The Vehicle Identification Number (VIN) also appears on the Vehicle Certification label and certificates of title and registration. Engine Identification The eighth character in the VIN is the engine code. This code identifies the vehicle's engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Specifications 0 342 for the vehicle's engine code. If there is not a large barcode on this label, then you will find this same information on a label inside of the trunk. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 342 TECHNICAL DATA Vehicle Data Capacities and Specifications Application Air Conditioning Refrigerant Capacities Metric English For the air conditioning system refrigerant type and charge amount, see the refrigerant label under the hood. See your dealer for more information. Engine Cooling System* 11.0 L 11.6 qt 13.0 L 13.7 qt 5.0 L 5.3 qt 5.7 L 6.0 qt Fuel Tank 66.0 L 17.5 gal Transfer Case – AWD 0.78 L 0.8 qt Front Axle – AWD 0.4 L 0.42 qt I2.0L L4 engine I2.7L L4 engine Engine Oil with Filter I2.0L L4 engine I2.7L L4 engine Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 TECHNICAL DATA 343 Capacities Application Metric English 0.75 L 0.79 qt 1.0 L 1.0 qt 1.0 L 1.0 qt 140 Y 100 lb ft Rear Axle IOpen Differential - Small IOpen Differential - Large IMechanical Limited Slip Wheel Nut Torque All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level after filling. *Engine cooling system capacity values are based on the entire cooling system and its components. Engine Specifications Engine VIN Code Horsepower Torque Spark Plug Gap 2.0L L4 Turbo Engine (LSY) K 177 kW (237 hp) @ 5000 rpm 350 Y (258 lb ft) @ 1500–4000 rpm 0.65–0.75 mm (0.026– 0.030 in) 2.7L L4 Turbo Engine (L3B) L 232 kW (310 hp) @ 5600 rpm 472 Y (348 lb ft) @ 1500–4000 rpm 0.65–0.75 mm (0.026– 0.030 in) Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 344 TECHNICAL DATA Engine Specifications (cont'd) Engine VIN Code Horsepower Torque Spark Plug Gap Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage the spark plug. The horsepower and torque values for the 2.0L L4 engine are based on RON98 petrol (premium). Vehicle Top Speed Engine Metric English 2.0L L4 Turbo Engine (LSY) 233 km/h 145 mph 2.7L L4 Turbo Engine (L3B) 264 km/h 164 mph Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 TECHNICAL DATA Engine Drive Belt Routing 2.0L L4 Engine (LSY) 2.7L L4 Engine (L3B) 345 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 346 CUSTOMER INFORMATION Customer Information Customer Information Customer Information Radio Frequency Devices Declaration of Conformity Declaration of Conformity . . . . . . . 346 Vehicle Data Recording and Privacy Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . Cybersecurity . . . . . . . . . . . . . . . . . . . . . Event Data Recorders . . . . . . . . . . . . Infotainment System . . . . . . . . . . . . . United Arab Emirates (UAE) 348 348 348 349 Nigeria Connection and use of this communications equipment is permitted by the Nigerian Communications Commission. Forward Collision Alert and Adaptive Cruise Control Side Blind Zone Alert and Rear Cross Traffic Alert TRC No. TRC/LPD/2019/197 Following are country-specific declarations of conformity for the Side Blind Zone Alert system. Jordan Oman Jordan TRC No. T/4/11/11/1213 Oman Morocco Approved by Morocco Approval number: MR 17505 ANRT 2018 Approval date: 2018–09–14 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 CUSTOMER INFORMATION United Arab Emirates (UAE) United Arab Emirates (UAE) 347 Tire Pressure Monitoring Sensor Jordan TRC/LPD/2019/226 Oman Rear Collision Mitigation Remote Key Jordan Jordan TRC No. TRC/LPD/2019/203 TRC No. TRC/SS/2018/373 Oman Oman United Arab Emirates Morocco United Arab Emirates (UAE) Morocco Approved by Morocco Approved by Morocco Approval number: MR 17873 ANRT 2018 Approval number: MR 19743 ANRT 2019 Approval date: 2018–11–02 Approval date: 2019_05_13 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 348 CUSTOMER INFORMATION Vehicle Data Recording and Privacy The vehicle has a number of computers that record information about the vehicle’s performance and how it is driven or used. For example, the vehicle uses computer modules to monitor and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy them in a crash, and, if equipped, to provide antilock braking to help the driver control the vehicle. These modules may store data to help the dealer technician service the vehicle or to help GM improve safety or features. Some modules may also store data about how the vehicle is operated, such as rate of fuel consumption or average speed. These modules may retain personal preferences, such as radio presets, seat positions, and temperature settings. Cybersecurity GM collects information about the use of your vehicle including operational and safety related information. We collect this information to provide, evaluate, improve, and troubleshoot our products and services and to develop new products and services. The protection of vehicle electronics systems and customer data from unauthorized outside electronic access or control is important to GM. GM maintains appropriate security standards, practices, guidelines and controls aimed at defending the vehicle and the vehicle service ecosystem against unauthorized electronic access, detecting possible malicious activity in related networks, and responding to suspected cybersecurity incidents in a timely, coordinated and effective manner. Security incidents could impact your safety or compromise your private data. To minimize security risks, please do not connect your vehicle electronic systems to unauthorized devices or connect your vehicle to any unknown or untrusted networks (such as Bluetooth, WIFI or similar technology). In the event you suspect any security incident impacting your data or the safe operation of your vehicle, please stop operating your vehicle and contact your dealer. Event Data Recorders This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record, in certain crash or near crash-like situations, such as an airbag deployment or hitting a road obstacle, data that will assist in understanding how a vehicle's systems performed. The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less. The EDR in this vehicle is designed to record such data as: . How various systems in your vehicle were operating. . Whether or not the driver and passenger safety belts were buckled/ fastened; . How far (if at all) the driver was depressing the accelerator and/or brake pedal; and . How fast the vehicle was traveling. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 CUSTOMER INFORMATION These data can help provide a better understanding of the circumstances in which crashes and injuries occur. Note EDR data are recorded by your vehicle only if a non-trivial crash situation occurs. No data are recorded by the EDR under normal driving conditions and no personal data (e.g., name, gender, age, and crash location) are recorded. However, other parties, such as law enforcement, could combine the EDR data with the type of personally identifying data routinely acquired during a crash investigation. To read data recorded by an EDR, special equipment is required, and access to the vehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties, such as law enforcement, that have the special equipment, can read the information if they have access to the vehicle or the EDR. GM will not access these data or share it with others except: with the consent of the vehicle owner or, if the vehicle is leased, with the consent of the lessee; in response to an official request of police or similar government office; as part of GM's defense of litigation; or, as required by law. Data that GM collects or receives may also be used for GM research needs or may be made available to others for research purposes, where a need is shown and the data is not tied to a specific vehicle or vehicle owner. Infotainment System If the vehicle is equipped with a navigation system as part of the infotainment system, use of the system may result in the storage of destinations, addresses, telephone numbers, and other trip information. See the infotainment section for information on stored data and for deletion instructions. 349 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 350 ONSTAR OnStar OnStar Overview OnStar Overview OnStar Overview . . . . . . . . . . . . . . . . . . 350 OnStar Services Emergency . . . . . . . . . . . . . . . . . . . . . . . . 351 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 OnStar Additional Information OnStar Additional Information . . . . . . . . . . . . . . . . . . . . . 352 ! Privacy Button | Blue OnStar Button U Red Emergency Button This vehicle may be equipped with a comprehensive, in-vehicle system that can connect to an OnStar Advisor for Emergency, Security, Navigation, Connections, and Diagnostics Services. OnStar and connected services may require a paid service plan and data plan. OnStar requires the vehicle battery and electrical system, cellular service, and GPS satellite signals to be available and operating. OnStar acts as a link to existing emergency service providers. OnStar may collect information about you and your vehicle, including location information. See OnStar User Terms, Privacy Statement, and Software Terms for more details including system limitations at my.cadillacarabia.com. The OnStar system status light is next to the OnStar buttons. If the status light is: . Solid Green: System is ready. . Flashing Green: On a call. . Red: Indicates a problem. . Off: System is off. Press | twice to speak with an OnStar Advisor. Press | to speak to an Advisor. See "Contacting OnStar" later in this section. Functionality of the Voice Command button may vary by vehicle and region. Press | to: . Open the OnStar app on the infotainment display. Or . Obtain and customize the Wi-Fi hotspot name or SSID and password, if equipped. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 ONSTAR Press | to connect to an Advisor to: . Verify account information or update contact information. . Receive a Diagnostic check of the vehicle's key operating systems. . Receive Roadside Service. . Manage Wi-Fi Settings, if equipped. Press U to get a priority connection to an OnStar Advisor available 24/7 to: . Get help for an emergency. . Be a Good Citizen. . Get assistance in severe weather and find evacuation routes. 351 Contacting OnStar To contact an OnStar Advisor, press numbers. | or call one of the following phone Country Phone Number Bahrain 80006956 Kuwait 22285334 UAE 800 04444433 Saudi Arabia STC 800 8449102 Saudi Arabia not STC 800 8500674 OnStar Services Emergency Emergency Services require an active safety and security plan. With Automatic Crash Response, built-in sensors can automatically alert a specially trained OnStar Advisor who is immediately connected in to the vehicle to help. Press U for a priority connection to an OnStar Advisor who can contact emergency service providers, direct them to your exact location, and relay important information. With Roadside Assistance, Advisors can locate a nearby service provider to help with a flat tire, a battery jump, or an empty gas tank. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 352 ONSTAR Security If equipped, OnStar provides these services: . With Stolen Vehicle Assistance, OnStar Advisors can use GPS to pinpoint the vehicle and help authorities quickly recover it. . With Remote Ignition Block, if equipped, OnStar can block the engine from being restarted. . With Stolen Vehicle Slowdown, if equipped, OnStar can work with law enforcement to gradually slow the vehicle down. Theft Alarm Notification If equipped, if the doors are locked and the vehicle alarm sounds, a notification by text, e-mail, or phone call will be sent. If the vehicle is stolen, an OnStar Advisor can work with authorities to recover the vehicle. OnStar Additional Information Transferring Service Press | to request account transfer eligibility information. The Advisor can cancel or change account information. Selling/Transferring the Vehicle Call immediately to terminate your OnStar or connected services if the vehicle is disposed of, sold, transferred, or if the lease ends. See “Contacting OnStar” later in this section. Reactivation for Subsequent Owners Press | and follow the prompts to speak to an Advisor as soon as possible. The Advisor will update vehicle records and explain OnStar or connected service options. How OnStar Service Works Automatic Crash Response, Emergency Services, Stolen Vehicle Assistance, Remote Services, and Roadside Service are available on most vehicles. Not all OnStar services are available everywhere or on all vehicles. For more information, a full description of OnStar services, system limitations, and OnStar User Terms, Privacy Statement, and Software Terms. See “Contacting OnStar” later in this section. . See my.cadillacarabia.com. . Press | to speak with an Advisor. OnStar or connected services cannot work unless the vehicle is in a place where OnStar has an agreement with a wireless service provider for service in that area. The wireless service provider must also have coverage, network capacity, reception, and technology compatible with OnStar or connected services. Service involving location information about the vehicle cannot work unless GPS signals are available, unobstructed, and compatible with the OnStar hardware. OnStar or connected services may not Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 ONSTAR work if the OnStar equipment is not properly installed or it has not been properly maintained. If equipment or software is added, connected, or modified, OnStar or connected services may not work. Other problems beyond the control of OnStar — such as hills, tall buildings, tunnels, weather, electrical system design and architecture of the vehicle, damage to the vehicle in a crash, or wireless phone network congestion or jamming — may prevent service. OnStar Personal Identification Number (PIN) A PIN is needed to access some OnStar services. The PIN will need to be changed the first time when speaking with an Advisor. To change the OnStar PIN, contact an OnStar Advisor by pressing | or calling. See “Contacting OnStar” later in this section. Warranty OnStar equipment may be warranted as part of the vehicle warranty. Languages The vehicle can be programmed to respond in multiple languages. Press | and ask for an Advisor. Advisors are available in English and Arabic. Available languages may vary by vehicle. Potential Issues OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for 10 days without an ignition cycle. If the vehicle has not been started for 10 days, OnStar can contact Roadside Service or a locksmith to help gain access to the vehicle. Global Positioning System (GPS) . Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels and underpasses; or in an area with very dense trees. If GPS signals are not available, the OnStar system should still operate to call OnStar. However, OnStar could have difficulty identifying the exact location. 353 . In emergency situations, OnStar can use the last stored GPS location to send to emergency responders. Cellular and GPS Antennas Cellular reception is required for OnStar to send remote signals to the vehicle. Do not place items over or near the antenna to prevent blocking cellular and GPS signal reception. Unable to Connect to OnStar Message If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Press | to try the call again or try again after driving a few miles into another cellular area. Vehicle and Power Issues OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 354 ONSTAR Add-on Electrical Equipment The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment 0 265. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate. Vehicle Software Updates OnStar or GM may remotely deliver software updates or changes to the vehicle without further notice or consent. These updates or changes may enhance or maintain safety, security, or the operation of the vehicle or the vehicle systems. Software updates or changes may affect or erase data or settings that are stored in the vehicle, such as saved navigation destinations or pre-set radio stations. Neither OnStar nor GM is responsible for any affected or erased data or settings. These updates or changes may also collect personal information. Such collection is described in the OnStar privacy statement or separately disclosed at the time of installation. These updates or changes may also cause a system to automatically communicate with GM servers to collect information about vehicle system status, identify whether updates or changes are available, or deliver updates or changes. An active OnStar agreement constitutes consent to these software updates or changes and agreement that either OnStar or GM may remotely deliver them to the vehicle. Privacy The complete OnStar Privacy Statement may be found at my.cadillacarabia.com. We recommend that you review it. If you have any questions, call or press | to speak with an Advisor. Users of wireless communications are cautioned that the privacy of any information sent via wireless cellular communications cannot be assured. Third parties may unlawfully intercept or access transmissions and private communications without consent. OnStar - Software Acknowledgements To obtain the source code under GPL, LGPL, MPL, and other open source licenses, that is contained in this product, please visit http:// opensource.lge.com. In addition to the source code, all referred license terms, warranty disclaimers, and copyright notices are available for download. This offer is valid for a period of three years after our last shipment of this product. This offer is valid to anyone in receipt of this information. *Provided through LG Electronics Inc., who is solely responsible for provisions of related OSS compliance. Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 ONSTAR Contacting OnStar To contact an OnStar Advisor, press numbers. | or call one of the following phone Country Phone Number Bahrain 80006956 Kuwait 22285334 UAE 800 04444433 Saudi Arabia STC 800 8449102 Saudi Arabia not STC 800 8500674 355 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 356 Index INDEX A Accessories and Modifications . . . . . 267 Accessory Power . . . . . . . . . . . . . . . . . . . . 207 Adaptive Cruise Control . . . . . . . . . . . . 235 Add-On Electrical Equipment . . . . . . 265 Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . 31 Thigh Support . . . . . . . . . . . . . . . . . . . . . 32 Agreements Trademarks and License . . . . . . . . . 175 Air Cleaner/Filter, Engine . . . . . . . . . . 277 Air Conditioning . . . . . . . . . . . . . . . . . . . . 182 Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . . . 276 Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . . . . . 187 Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 How Does an Airbag Restrain? . . . . 50 Passenger Sensing System . . . . . . . . 52 What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . . . . 51 Airbag System (cont'd) When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Where Are the Airbags? . . . . . . . . . . . 48 Airbags Adding Equipment to the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Passenger Status Indicator . . . . . . . . 96 Readiness Light . . . . . . . . . . . . . . . . . . . . 95 Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 System Check . . . . . . . . . . . . . . . . . . . . . . 46 Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . 20 Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . 257 Rear Pedestrian . . . . . . . . . . . . . . . . . . . 250 Side Blind Zone (SBZA) . . . . . . . . . . 257 All-Season Tires . . . . . . . . . . . . . . . . . . . . . 300 All-Wheel Drive . . . . . . . . . . . . . . . .220, 288 AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . 136 Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . 139 Antilock Brake System (ABS) . . . . . . 220 Warning Light . . . . . . . . . . . . . . . . . . . . 100 Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INDEX Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . . . . 167 Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Assistance Systems for Driving . . . . 251 Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 245 Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Auto Stop Stop/Start System . . . . . . . . . . . . . . . . 206 Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . 24 Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 16 Emergency Braking (AEB) . . . . . . . . 254 Headlamp System . . . . . . . . . . . . . . . . 124 Transmission . . . . . . . . . . . . . . . . 211, 213 Transmission Fluid . . . . . . . . . . . . . . . 276 Vehicle Hold Light . . . . . . . . . . . . . . . . 100 Automatic Transmission Manual Mode . . . . . . . . . . . . . . . 218, 219 Automatic Vehicle Hold (AVH) . . . . 223 Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 B Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287 Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Battery (cont'd) Jump Starting . . . . . . . . . . . . . . . . . . . . . 315 Load Management . . . . . . . . . . . . . . . . 128 Power Protection . . . . . . . . . . . . . . . . . . 129 Blade Replacement, Wiper . . . . . . . . . 288 Bluetooth Overview . . . . . . . . . . . . . . . . . . . . 162, 163 Bluetooth Audio . . . . . . . . . . . . . . . . . . . . 142 Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 220 Parking, Electric . . . . . . . . . . . . . . . . . . 221 System Warning Light . . . . . . . . . . . . . 99 Brake Pad Life System . . . . . . . . . . . . . . 285 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286 Pad Life System . . . . . . . . . . . . . . . . . . . 285 Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Automatic Emergency (AEB) . . . . . 254 Braking System Front Pedestrian (FPB) . . . . . . . . . . . 255 Break-In, New Vehicle . . . . . . . . . . . . . . 203 Bulb Replacement Front Turn Signal Lamps . . . . . . . . 291 Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 291 Headlamp Aiming . . . . . . . . . . . . . . . . 290 Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 290 357 Bulb Replacement (cont'd) High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . 291 Buying New Tires . . . . . . . . . . . . . . . . . . . 311 C Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Capacities and Specifications . . . . . . 342 Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 211 Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Winter Driving . . . . . . . . . . . . . . . . . . . . 198 Cargo Management System . . . . . . . . . . . . . . 78 Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Caution, Danger, and Warning . . . . . . . .1 Center Console Storage . . . . . . . . . . . . . . 77 Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 314 Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Charging System Light . . . . . . . . . . . . . . 96 Check Engine Light (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . 97 Child Restraints Infants and Young Children . . . . . . . 59 Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . 64 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 358 INDEX Child Restraints (cont'd) Older Children . . . . . . . . . . . . . . . . . . . . . 57 Securing . . . . . . . . . . . . . . . . . . . . . . . . 70, 72 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . 86 Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 292 Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 319 Interior Care . . . . . . . . . . . . . . . . . . . . . . 324 Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . 182 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Cluster, Instrument . . . . . . . . . . . . . . 88, 90 Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Competitive Driving Mode . . . . . . . . . 230 Composite Materials . . . . . . . . . . . . . . . . 203 Conformity Declaration of . . . . . . . . . . . . . . . . . . . . . 346 Control Traction and Electronic Stability . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Control of a Vehicle . . . . . . . . . . . . . . . . 190 Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . 133 Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 22 Coolant Engine Temperature Gauge . . . . . . . 94 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 Cooling System . . . . . . . . . . . . . . . . . . . . . 278 Cornering Lamps . . . . . . . . . . . . . . . . . . . 125 Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 126 Coverage Explanations . . . . . . . . . . . . . 156 Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 232 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Cruise Control, Adaptive . . . . . . . . . . . 235 Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . 348 D Danger, Warning, and Caution . . . . . . . .1 Data Collection Infotainment System . . . . . . . . . . . . . 349 Data Recorders, Event . . . . . . . . . . . . . . 348 Database Coverage Explanations . . . . . . . . . . . . . . . . . . . . . . 156 Daytime Running Lamps (DRL) . . . 124 Declaration of Conformity . . . . . . . . . 346 Defensive Driving . . . . . . . . . . . . . . . . . . . 190 Delayed Locking . . . . . . . . . . . . . . . . . . . . . 16 Destination . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Differential, Limited-Slip . . . . . . . . . . . 232 Distracted Driving . . . . . . . . . . . . . . . . . . 189 Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 126 Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 105 Delayed Locking . . . . . . . . . . . . . . . . . . . 16 Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 16 Drive Belt Routing, Engine . . . . . . . . . 345 Drive Systems All-Wheel Drive . . . . . . . . . . . . . 220, 288 Driver Assistance Systems . . . . . . . . . 244 Driver Information Center (DIC) . . . . . . . . . . . . . . . . . .105, 108 Driver Mode Control . . . . . . . . . . . . . . . . 225 Driver Mode Control Light . . . . . . . . . 102 Driving Assistance Systems . . . . . . . . . . . . . . . 251 Better Fuel Economy . . . . . . . . . . . . . 189 Competitive . . . . . . . . . . . . . . . . . . . . . . . 230 Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Hill and Mountain Roads . . . . . . . . 198 If the Vehicle is Stuck . . . . . . . . . . . . 199 Loss of Control . . . . . . . . . . . . . . . . . . . . 192 Off-Road Recovery . . . . . . . . . . . . . . . . 191 Track Events and Competitive . . . . . . . . . . . . . . . . . . . . . . 192 Vehicle Load Limits . . . . . . . . . . . . . . 200 Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 197 Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INDEX Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 182 E Electric Brake Boost . . . . . . . . . . . . . . . . 220 Electric Parking Brake . . . . . . . . . . . . . . 221 Electric Parking Brake Light . . . . . . . . 99 Electrical Equipment, Add-On . . . . . 265 Electrical System Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Fuses and Circuit Breakers . . . . . . . 292 Instrument Panel Fuse Block . . . . 295 Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351 Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 277 Check Light (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . 97 Compartment Overview . . . . . . . . . . 270 Coolant Temperature Gauge . . . . . . 94 Cooling System . . . . . . . . . . . . . . . . . . . 278 Drive Belt Routing . . . . . . . . . . . . . . . . 345 Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Oil Life System . . . . . . . . . . . . . . . . . . . . 275 Engine (cont'd) Oil Pressure Light . . . . . . . . . . . . . . . . . 103 Overheating . . . . . . . . . . . . . . . . . . . . . . . 283 Power Messages . . . . . . . . . . . . . . . . . . 113 Running While Parked . . . . . . . . . . . 211 Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Engine Air Filter Life System . . . . . . 276 Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 127 Event Data Recorders . . . . . . . . . . . . . . 348 Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 128 Extended Parking . . . . . . . . . . . . . . . . . . . 210 Exterior Lamp Controls . . . . . . . . . . . . 122 Exterior Lamps Off Reminder . . . . . . 123 Exterior Lighting Battery Saver . . . . 129 F Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 277 Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 124 Flashers, Hazard Warning . . . . . . . . . . 125 Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 Fluid Automatic Transmission . . . . . . . . . 276 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286 Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 23 359 Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Front Seats Heated and Ventilated . . . . . . . . . . . . 36 Front Turn Signal Lamps . . . . . . . . . . 291 Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Economy, Driving for Better . . . . . 189 Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . . . . . . 264 Filling the Tank . . . . . . . . . . . . . . . . . . . 262 Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 93, 94 Low Fuel Warning Light . . . . . . . . . 103 Prohibited Fuels . . . . . . . . . . . . . . . . . . 262 Recommended . . . . . . . . . . . . . . 261, 262 Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 Fuses Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Fuses and Circuit Breakers . . . . . . . 292 Instrument Panel Fuse Block . . . . 295 Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 360 INDEX G Garage Door Opener Programming . . . . . . . . . . . . . . . . . . . . . . 119 Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 289 Gauges Engine Coolant Temperature . . . . . 94 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93, 94 Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Speedometer . . . . . . . . . . . . . . . . . . . . . . . 92 Tachometer . . . . . . . . . . . . . . . . . . . . . . . . 93 Trip Odometer . . . . . . . . . . . . . . . . . . . . . 93 Warning Lights and Indicators . . . 87 General Information Service and Maintenance . . . . . . . . 328 Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 267 Global Positioning System (GPS) . . . . . . . . . . . . . . . . . . . . . . 155 Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Guidance Problems with the Route . . . . . . . . . 156 H Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 291 Hazard Warning Flashers . . . . . . . . . . 125 Head Restraints . . . . . . . . . . . . . . . . . . . . . . 30 Head-up Display . . . . . . . . . . . . . . . . . . . . 110 Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 124 Bulb Replacement . . . . . . . . . . . . . . . . 290 Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 124 Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 124 High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . 291 High-Beam On Light . . . . . . . . . . . . . . 104 High/Low Beam Changer . . . . . . . . . 123 Lamps On Reminder . . . . . . . . . . . . . . 104 Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . 81 Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 24 Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 High-Beam On Light . . . . . . . . . . . . . . . . 104 High-Speed Operation . . . . . . . . . . . . . . 304 Hill and Mountain Roads . . . . . . . . . . 198 Hill Start Assist (HSA) . . . . . . . . . . . . . 222 Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 How to Wear Seat Belts Properly . . . 40 HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 I If the System Needs Service . . . . . . . 156 Ignition Positions . . . . . . . . . . . . . . . . . . . 204 Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . 101 Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 101 Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Infotainment System . . . . . . . . . . . . . . . 349 Instrument Cluster . . . . . . . . . . . . . . 88, 90 Instrument Panel Overview . . . . . . . . . . .4 Interior Rearview Mirrors . . . . . . . . . . . 25 Introduction . . . . . . . . . . . . . . . . . . . . . . 1, 130 J Jump Starting . . . . . . . . . . . . . . . . . . . . . . . 315 K Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . 7 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 L Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . Daytime Running (DRL) . . . . . . . . . . Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exterior Controls . . . . . . . . . . . . . . . . . . 125 126 124 126 122 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INDEX Lamps (cont'd) Exterior Lamps Off Reminder . . . . 123 Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Front Turn Signal . . . . . . . . . . . . . . . . . 291 Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 On Reminder . . . . . . . . . . . . . . . . . . . . . . 104 Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Lane Change Alert (LCA) . . . . . . . . . . . 257 Lane Keep Assist (LKA) . . . . . . . . . . . . 259 Lane Keep Assist Light . . . . . . . . . . . . . 100 Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 42 LATCH System Replacing Parts after a Crash . . . . . 70 LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . 64 LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 291 Light Performance Shifting . . . . . . . . . . . . . 100 Lighter, Cigarette . . . . . . . . . . . . . . . . . . . . 86 Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Illumination Control . . . . . . . . . . . . . . 126 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291 Lights Airbag Readiness . . . . . . . . . . . . . . . . . . 95 Lights (cont'd) Antilock Brake System (ABS) Warning . . . . . . . . . . . . . . . . . . . . . . . . . 100 Automatic Vehicle Hold . . . . . . . . . . 100 Brake System Warning . . . . . . . . . . . . 99 Charging System . . . . . . . . . . . . . . . . . . . 96 Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . 97 Cruise Control . . . . . . . . . . . . . . . . . . . . . 104 Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Driver Mode Control . . . . . . . . . . . . . . 102 Electric Parking Brake . . . . . . . . . . . . . 99 Engine Oil Pressure . . . . . . . . . . . . . . . 103 Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 124 High-Beam On . . . . . . . . . . . . . . . . . . . . 104 High/Low Beam Changer . . . . . . . . . 123 Lane Keep Assist . . . . . . . . . . . . . . . . . . 100 Low Fuel Warning . . . . . . . . . . . . . . . . 103 Seat Belt Reminders . . . . . . . . . . . . . . . 95 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Service Electric Parking Brake . . . . 99 StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 102 Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 103 Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 102 Traction Off . . . . . . . . . . . . . . . . . . . . . . . 101 Limited-Slip Differential . . . . . . . . . . . . 232 361 Locks Automatic Door . . . . . . . . . . . . . . . . . . . . 16 Delayed Locking . . . . . . . . . . . . . . . . . . . 16 Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Lockout Protection . . . . . . . . . . . . . . . . 17 Power Door . . . . . . . . . . . . . . . . . . . . . . . . . 16 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Loss of Control . . . . . . . . . . . . . . . . . . . . . . 192 Low Fuel Warning Light . . . . . . . . . . . 103 Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 302 Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . 64 Lumbar Adjustment . . . . . . . . . . . . . . . . . 31 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 31 M Maintenance Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340 Maintenance Schedule . . . . . . . . . . . . . 329 Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . 337 Malfunction Indicator Lamp . . . . . . . . 97 Manual Mode . . . . . . . . . . . . . . . . . .218, 219 Map Data Updates . . . . . . . . . . . . . . . . . . 156 Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Media Avoiding Untrusted Devices . . . . . 139 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 362 INDEX Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 33 Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 113 Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 114 Mirrors Automatic Dimming . . . . . . . . . . . . . . . 24 Automatic Dimming Rearview . . . . 25 Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Manual Rearview . . . . . . . . . . . . . . . . . . 25 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . 24 Mirrors, Interior Rearview . . . . . . . . . . . 25 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 Driver Control . . . . . . . . . . . . . . . . . . . . . 225 Monitor System, Tire Pressure . . . . . 305 Multi-band Antenna . . . . . . . . . . . . . . . . 139 Odometer (cont'd) Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Engine Oil Life System . . . . . . . . . . . 275 Pressure Light . . . . . . . . . . . . . . . . . . . . . 103 Older Children, Restraints . . . . . . . . . . . 57 OnStar Additional Information . . . . 352 OnStar Emergency . . . . . . . . . . . . . . . . . . 351 OnStar Overview . . . . . . . . . . . . . . . . . . . . 350 OnStar Security . . . . . . . . . . . . . . . . . . . . . 352 Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Overheating, Engine . . . . . . . . . . . . . . . . 283 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Instrument Panel . . . . . . . . . . . . . . . . . . . . 4 N Park Shifting Into . . . . . . . . . . . . . . . . 208, 209 Shifting Out of . . . . . . . . . . . . . . 209, 210 Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Parking Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . 288 Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Navigation Destination . . . . . . . . . . . . . . . . . . . . . . . . 148 Using the System . . . . . . . . . . . . . . . . . 143 Navigation Symbols . . . . . . . . . . . . . . . . 147 New Vehicle Break-In . . . . . . . . . . . . . . . 203 O Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 P Parking (cont'd) Over Things That Burn . . . . . . . . . . . 210 Parking or Backing Assistance Systems . . . . . . . . . . . . . . . 245 Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Passenger Sensing System . . . . . . . . . . 52 Pedestrian Ahead Indicator . . . . . . . . 101 Performance Shifting Light . . . . . . . . 100 Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Phone Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . . 167 Bluetooth . . . . . . . . . . . . . . . . . . . . 162, 163 Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 16 Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Protection, Battery . . . . . . . . . . . . . . . . 129 Retained Accessory (RAP) . . . . . . . . 207 Seat Adjustment . . . . . . . . . . . . . . . . . . . 31 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INDEX Power (cont'd) Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Pregnancy, Using Seat Belts . . . . . . . . . 44 Privacy Vehicle Data Recording . . . . . . . . . . 348 Problems with Route Guidance . . . . 156 Prohibited Fuels . . . . . . . . . . . . . . . . . . . . 262 R Radio Data System (RDS) . . . . . . . . . . 138 Radio Reception . . . . . . . . . . . . . . . . . . . . 139 Radios AM-FM Radio . . . . . . . . . . . . . . . . . . . . . 136 Reading Lamps . . . . . . . . . . . . . . . . . . . . . 126 Rear Pedestrian Alert . . . . . . . . . . . . . . . 250 Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Rear Vision Camera (RVC) . . . . . . . . . 245 Rearview Mirrors . . . . . . . . . . . . . . . . . . . . 25 Automatic Dimming . . . . . . . . . . . . . . . 25 Reclining Seatbacks . . . . . . . . . . . . . . . . . 32 Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 261, 262 Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . 337 Records Maintenance . . . . . . . . . . . . . . . . . . . . . . 340 Recreational Vehicle Towing . . . . . . . 319 Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Remote Vehicle Start . . . . . . . . . . . . . . . . 12 Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Maintenance . . . . . . . . . . . . . . . . . . . . . . 338 Replacing Airbag System . . . . . . . . . . . . 57 Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . 70 Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . . 46 Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . 63 Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . . . . 207 Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . 24 Ride Control Systems Enhanced Traction System (ETS) . . . . . . . . . . . . . . . . . . . . 232 Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . 197 Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 309 Routing, Engine Drive Belt . . . . . . . . . 345 Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . 301 363 Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 S Safety Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Safety System Check . . . . . . . . . . . . . . . . 45 Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 42 Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Replacing after a Crash . . . . . . . . . . . . 46 Use During Pregnancy . . . . . . . . . . . . . 44 Seats Head Restraints . . . . . . . . . . . . . . . . . . . . 30 Heated and Ventilated Front . . . . . . 36 Lumbar Adjustment, Front . . . . . . . . 31 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Power Adjustment, Front . . . . . . . . . 31 Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Reclining Seatbacks . . . . . . . . . . . . . . . 32 Securing Child Restraints . . . . . . . 70, 72 Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 364 INDEX Security (cont'd) Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . 20 Self-Sealing Tires . . . . . . . . . . . . . . . . . . . 302 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Accessories and Modifications . . . . . . . . . . . . . . . . . . . . 267 Doing Your Own Work . . . . . . . . . . . 267 Maintenance Records . . . . . . . . . . . . 340 Maintenance, General Information . . . . . . . . . . . . . . . . . . . . . . 328 Parts Identification . . . . . . . . . . . . . . . 341 Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Servicing System . . . . . . . . . . . . . . . . . . . . 156 Servicing the Airbag . . . . . . . . . . . . . . . . . 56 Settings . . . . . . . . . . . . . . . . . . . . . . . . .153, 169 Shifting Into Park . . . . . . . . . . . . . . . . . . . . 208, 209 Out of Park . . . . . . . . . . . . . . . . . . 209, 210 Side Blind Zone Alert (SBZA) . . . . . . 257 Signals, Turn and Lane-Change . . . . 125 Software Updates . . . . . . . . . . . . . . . . . . . 136 Specifications and Capacities . . . . . . 342 Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . 92 StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Start Assist, Hill . . . . . . . . . . . . . . . . . . . . 222 Start Vehicle, Remote . . . . . . . . . . . . . . . 12 Starting the Engine . . . . . . . . . . . . . . . . . 206 Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . 81 Wheel Adjustment . . . . . . . . . . . . . . . . . 81 Wheel Controls . . . . . . . . . . . . . . . . . . . . 81 Steering Wheel Controls . . . . . . . . . . . 133 Stop/Start System . . . . . . . . . . . . . . . . . . 206 Storage Areas Cargo Management System . . . . . . . 78 Center Console . . . . . . . . . . . . . . . . . . . . . 77 Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Umbrella . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Storage Compartments . . . . . . . . . . . . . . 76 Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289 Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . 199 Summer Tires . . . . . . . . . . . . . . . . . . . . . . . 302 Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 147 System Brake Pad Life . . . . . . . . . . . . . . . . . . . . . 285 Engine Air Filter Life . . . . . . . . . . . . . 276 Forward Collision Alert (FCA) . . . . 251 Global Positioning . . . . . . . . . . . . . . . . 155 Infotainment . . . . . . . . . . . . . . . . . . . . . . 349 Systems Driver Assistance . . . . . . . . . . . . . . . . . 244 T Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Theft-Deterrent Systems . . . . . . . . . . . . 21 Thigh Support Adjustment . . . . . . . . . . 32 Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 300 Buying New Tires . . . . . . . . . . . . . . . . . 311 Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Different Size . . . . . . . . . . . . . . . . . . . . . . 313 If a Tire Goes Flat . . . . . . . . . . . . . . . . 314 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 309 Low Profile . . . . . . . . . . . . . . . . . . . . . . . . 302 Pressure . . . . . . . . . . . . . . . . . . . . . 303, 304 Pressure Light . . . . . . . . . . . . . . . . . . . . . 103 Pressure Monitor Operation . . . . . . 306 Pressure Monitor System . . . . . . . . 305 Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 309 Run-Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Self-Sealing . . . . . . . . . . . . . . . . . . . . . . . . 302 Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Wheel Replacement . . . . . . . . . . . . . . 313 When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 INDEX Tires (cont'd) Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 261 Towing General Information . . . . . . . . . . . . . . 265 Recreational Vehicle . . . . . . . . . . . . . . 319 Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 Track Events and Competitive Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . 102 Limited-Slip Differential . . . . . . . . . . 232 Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 223 Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . . . . . . 175 Transmission Automatic . . . . . . . . . . . . . . . . . . . 211, 213 Fluid, Automatic . . . . . . . . . . . . . . . . . . 276 Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . 93 Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Turn and Lane-Change Signals . . . . 125 U Umbrella Storage . . . . . . . . . . . . . . . . . . . . 77 365 Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Programming . . . . . . . . . . . . . . . . . . . . . . 119 Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Using the Navigation System . . . . . . 143 Using the System . . . . . . . . . . . . . . . . . . . 133 Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 223 Vehicle Hold (AVH) Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 223 Vehicle Positioning . . . . . . . . . . . . . . . . . 155 Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 186 Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Voice Recognition . . . . . . . . . . . . . . . . . . 156 V Warning Brake System Light . . . . . . . . . . . . . . . . 99 Caution and Danger . . . . . . . . . . . . . . . . . 1 Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 125 Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 284 Wheels Alignment and Tire Balance . . . . . 313 Different Size . . . . . . . . . . . . . . . . . . . . . . 313 Replacement . . . . . . . . . . . . . . . . . . . . . . 313 When It Is Time for New Tires . . . . 310 Where to Put the Restraint . . . . . . . . . 63 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 289 Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . 20 Automatic Hold Light . . . . . . . . . . . . 100 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Identification Number (VIN) . . . . . 341 Load Limits . . . . . . . . . . . . . . . . . . . . . . . 200 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Personalization . . . . . . . . . . . . . . . . . . . 114 Remote Start . . . . . . . . . . . . . . . . . . . . . . . 12 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Speed Messages . . . . . . . . . . . . . . . . . . . 114 Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 Vehicle Ahead Indicator . . . . . . . . . . . . 101 Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 303 Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 W Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-14584375) - 2021 CRC - 8/27/20 366 INDEX Windshield (cont'd) Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 81 Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 301 Wiper Blade Replacement . . . . . . . . . . 288 Wireless Charging . . . . . . . . . . . . . . . . . . . 84