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The air deflector will retract when the sunroof is closed. The sunroof also has a sunshade which can be pulled forward to block sun rays. The sunshade must be opened and closed manually. If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof. See Sunroof on page 2‑22.


Performance and Maintenance


StabiliTrak® System If equipped, the vehicle has a traction control system that limits wheel spin and the StabiliTrak system that assists with directional control of the vehicle in difficult driving conditions. Both systems turn on automatically every time the vehicle is started.


To turn off traction control, press and release g on the instrument panel. The appropriate DIC message displays. See Ride Control System Messages on page 5‑40. To turn off both traction control and StabiliTrak, press and hold g until g illuminates and the appropriate DIC message displays. See Ride Control System Messages on page 5‑40.


. Press and release g again to


turn on both systems. For more information, see StabiliTrak® System on page 9‑43.


Tire Pressure Monitor This vehicle may have a Tire Pressure Monitor System (TPMS).


The low tire pressure warning light alerts to a significant loss in pressure of one of the vehicle's tires. 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 on page 9‑16. The warning light will remain on until the tire pressure is corrected.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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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 may be an early indicator that the tire pressures are getting low and the tires need to be inflated to the proper pressure. The TPMS does not replace normal monthly tire maintenance. Maintain the correct tire pressures. See Tire Pressure Monitor System on page 10‑51.


Engine Oil Life System The engine oil life system calculates engine oil life based on vehicle use and, on most vehicles, displays a DIC message when it is necessary to change the engine oil and filter. The oil life system should be reset to 100% only following an oil change.


Resetting the Oil Life System To reset the Engine Oil Life System on most vehicles: 1. Display OIL LIFE REMAINING on the DIC. If the vehicle does not have DIC buttons, the vehicle must be in P (Park) to access this display.


2. Press and hold the SET/RESET


button on the DIC, or the trip odometer reset stem if the vehicle does not have DIC buttons, for more than five seconds. The oil life will change to 100%.


On all vehicles, the Engine Oil Life System can be reset as follows: 1. Turn the ignition to ON/RUN with


the engine off.


2. Fully press the accelerator pedal


slowly three times within five seconds.


3. Display OIL LIFE REMAINING


on the DIC. If the display shows 100%, the system is reset.


In Brief


1-27


See Engine Oil Life System on page 10‑9.


Fuel E85 (85% Ethanol) Vehicles that have a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑59. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑58.


Driving for Better Fuel Economy Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. . Avoid fast starts and accelerate


smoothly.


. Brake gradually and avoid


abrupt stops.


. Avoid idling the engine for long


periods of time.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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OnStar® If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on page 14‑1.


1-28


In Brief


. 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.


. Replace the vehicle's tires with


the same TPC Spec number molded into the tire's sidewall near the size. Follow recommended scheduled maintenance.


Roadside Assistance Program U.S.: 1-888-881-3302
TTY Users (U.S. Only): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0801
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. See Roadside Assistance Program (Mexico) on page 13‑7 or Roadside Assistance Program (U.S. and Canada) on page 13‑11.


Roadside Assistance and OnStar (U.S. and Canada) If the vehicle has an active OnStar subscription, contact OnStar and the vehicle’s current GPS location will be sent to an OnStar advisor to assess the situation, contact Roadside Assistance, and relay the exact location to send help.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


Keys and Locks


Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)


System . . . . . . . . . . . . . . . . . . . . . . 2-2


Remote Keyless Entry (RKE)


System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-5
Door Locks . . . . . . . . . . . . . . . . . . . 2-7
Power Door Locks . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . 2-8
Automatic Door Locks . . . . . . . . . 2-8
Lockout Protection . . . . . . . . . . . . 2-8
Safety Locks . . . . . . . . . . . . . . . . . . 2-9


Keys, Doors, and Windows


2-1


Doors


Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Power Assist Steps . . . . . . . . . . 2-12


Vehicle Security


Vehicle Security . . . . . . . . . . . . . . 2-13
Vehicle Alarm System . . . . . . . 2-13
Immobilizer . . . . . . . . . . . . . . . . . . 2-14
Immobilizer Operation . . . . . . . 2-15


Exterior Mirrors


Convex Mirrors . . . . . . . . . . . . . . 2-16
Manual Mirrors . . . . . . . . . . . . . . . 2-16
Trailer-Tow Mirrors . . . . . . . . . . . 2-16
Power Mirrors . . . . . . . . . . . . . . . . 2-17
Folding Mirrors . . . . . . . . . . . . . . . 2-18


Heated Mirrors . . . . . . . . . . . . . . . 2-18
Automatic Dimming Mirror . . . 2-19
Park Tilt Mirrors . . . . . . . . . . . . . . 2-19


Interior Mirrors


Manual Rearview Mirror . . . . . . 2-19
Automatic Dimming Rearview


Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-20


Windows


Windows . . . . . . . . . . . . . . . . . . . . . 2-20
Power Windows . . . . . . . . . . . . . 2-21
Sun Visors . . . . . . . . . . . . . . . . . . . 2-22


Roof


Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-22


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2-2


Keys, Doors, and Windows


Keys and Locks


Keys


{ WARNING


Leaving children in a vehicle with the ignition 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 keys in the ignition, and children or others could be caught in the path of a closing window. Do not leave children in a vehicle with the ignition key.


With an active OnStar subscription, an OnStar Advisor may remotely unlock the vehicle. See OnStar Overview on page 14‑1.


Remote Keyless Entry (RKE) System See Radio Frequency Statement on page 13‑21 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. If there is a decrease in the RKE operating range: . Check the distance. The


transmitter may be too far from the vehicle.


. Check the location. Other vehicles or objects may be blocking the signal.


. Check the transmitter's battery.


See “Battery Replacement” later in this section.


The key is used for the ignition and all door locks. The key has a bar-coded key tag that the dealer or qualified locksmith can use to make new keys. Store this information in a safe place, not in the vehicle. See your dealer if a replacement key or additional key is needed. If the vehicle has an ignition and it becomes difficult to turn the key, inspect the key blade for debris. Periodically clean with a brush or pick.


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Keys, Doors, and Windows


2-3


If the transmitter is still not working correctly, see your dealer or a qualified technician for service.


Remote Keyless Entry (RKE) System Operation The Remote Keyless Entry (RKE) transmitter functions work up to 60 m (195 ft) away from the vehicle. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2‑2.


If


The following functions may be available if your vehicle has the RKE system: / (Remote Vehicle Start): available, press to start the engine from outside the vehicle using the RKE transmitter. See Remote Vehicle Start on page 2‑5 for additional information. Q (Lock): Press to lock all the doors. If enabled through the Driver Information Center (DIC), the turn signal lamps flash once to indicate locking has occurred. If enabled through the DIC, the horn chirps when the lock button is pressed again within three seconds. See Vehicle Personalization (With DIC Buttons) on page 5‑45 for additional information. Pressing Q arms the content theft-deterrent system. See Vehicle Alarm System on page 2‑13.


With Remote Start and Liftglass


With Remote Start and Power


Liftgate and Liftglass


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2-4


Keys, Doors, and Windows


K (Unlock): Press once to unlock only the driver door. If K is pressed again within three seconds, all remaining doors unlock. The interior lamps may come on and stay on for 20 seconds or until the ignition is turned on. If enabled through the DIC, the turn signal lamps flash twice to indicate unlocking has occurred. See Vehicle Personalization (With DIC Buttons) on page 5‑45. If enabled through the DIC, the exterior lights turn on briefly if it is dark enough outside. See “Approach Lighting” under Vehicle Personalization (With DIC Buttons) on page 5‑45. Pressing K on the RKE transmitter disarms the content theft-deterrent system. See Vehicle Alarm System on page 2‑13. m (Liftglass): Press and hold to unlock the liftglass.


8 (Power Liftgate): Press and hold to open and close the liftgate. The taillamps flash and a chime sounds to indicate when the liftgate is opening and closing. L (Vehicle Locator/Panic Alarm): Press and release to locate the vehicle. The turn signal lamps flash and the horn sounds three times. Press and hold L for more than two seconds to activate the panic alarm. The turn signal lamps flash and the horn sounds repeatedly for 30 seconds. The alarm turns off when the ignition is moved to ON/ RUN or L is pressed again. The ignition must be in LOCK/OFF for the panic alarm to work. Programming Transmitters to the Vehicle Only RKE transmitters programmed to this vehicle will work. If a transmitter is lost or stolen, a replacement can be purchased and programmed through your dealer.


When the replacement transmitter is programmed to this vehicle, all remaining transmitters must also be reprogrammed. Any lost or stolen transmitters will no longer work once the new transmitter is programmed. The vehicle can have a maximum of eight transmitters programmed to it. See your dealer to program transmitters to the vehicle. Battery Replacement Replace the battery if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC. See “REPLACE BATTERY IN REMOTE KEY” under Key and Lock Messages on page 5‑39 for additional information. Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.


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Keys, Doors, and Windows


2-5


3.


Insert the new battery, positive side facing down. Replace with a CR2032 or equivalent battery.


4. Snap the transmitter back


together.


Remote Vehicle Start If available, this feature allows you to start the engine from outside of the vehicle. It may also start up the vehicle's heating or air conditioning systems and rear window defogger. Normal operation of the system will return after the key is turned to the ON/RUN position. If the vehicle has an automatic climate control system, the climate control system will default to a heating or cooling mode depending on the outside temperatures. If the vehicle does not have an automatic climate control system, the system will turn on at the setting the vehicle was set to when the vehicle was last turned off.


During a remote start, if the vehicle has an automatic climate control system and heated seats, the heated seats will turn on during colder outside temperatures and will shut off when the key is turned to ON/RUN. If the vehicle does not have an automatic climate control system, during remote start, manually turn the heated seats on and off. See Heated and Ventilated Front Seats on page 3‑9 for additional information. Laws in some communities may restrict the use of remote starters. For example, some laws may require a person using the remote start to have the vehicle in view when doing so. Check local regulations for any requirements on remote starting of vehicles. Do not use the remote start feature if the vehicle is low on fuel. The vehicle may run out of fuel. The RKE transmitter range may be less while the vehicle is running.


To replace the battery: 1. Separate the transmitter with a


flat, thin object, such as a flat head screwdriver.


Carefully insert the tool into the notch located along the parting line of the transmitter. Do not insert the tool too far. Stop as soon as resistance is felt. Twist the tool until the transmitter is separated.


2. Remove the old battery. Do not


use a metal object.


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2-6


Keys, Doors, and Windows


There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2‑2 for additional information. / (Remote Start): This button will be on the RKE transmitter if the vehicle has remote start. To start the vehicle using the remote start feature: 1. Aim the RKE transmitter at the


vehicle.


2. Press and release Q.


3.


Immediately press and hold / until the turn signal lamps flash. If you cannot see the vehicle's lamps, press and hold / for at least two seconds. When the vehicle starts, the parking lamps will turn on and remain on while the vehicle is running. The doors will be locked and the climate control system may come on. The engine will continue to run for 10 minutes. Repeat the steps for a 10-minute time extension. Remote start can be extended only once.


After entering the vehicle during a remote start, insert and turn the key to ON/RUN to drive the vehicle. To cancel a remote start: . Aim the RKE transmitter at the vehicle and press and hold / until the parking lamps turn off. Turn on the hazard warning flashers.


Turn the ignition on and then back off.


The vehicle can be remote started two separate times between driving sequences. The engine will run for 10 minutes after each remote start. Or, you can extend the engine run time by another 10 minutes within the first 10 minute remote start time frame, and before the engine stops. For example, if Q and then / are pressed again after the vehicle has been running for 5 minutes, 10 minutes are added, allowing the engine to run for 15 minutes. The additional 10 minutes are considered a second remote vehicle start. Once two remote starts, or a single remote start with one time extension has been done, the vehicle must be started with the key. After the key is removed from the ignition, the vehicle can be remote started again.


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The vehicle cannot be remote started if the key is in the ignition, the hood is not closed, or if there is an emission control system malfunction and the check engine light is on. Also, the engine will turn off during a remote vehicle start if the coolant temperature gets too high or if the oil pressure gets low. Remote Start Ready If the vehicle does not have the remote vehicle start feature, it may have the remote start ready feature. This feature allows your dealer to add the manufacturer's remote vehicle start feature. See your dealer to add the manufacturer's remote vehicle start feature to the vehicle.


Keys, Doors, and Windows


2-7


Door Locks


{ WARNING Unlocked doors can be dangerous.


. Passengers, especially


children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open it. 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 safety 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


(Continued)


WARNING (Continued)


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 vehicle. Locking the doors can help prevent this from happening.


There are several ways to lock and unlock the vehicle. From outside, use the Remote Keyless Entry (RKE) transmitter or the key in the driver door. From inside, use the power door locks or manual door locks. To lock or unlock the door with the manual locks, push down or pull up on the manual lock knob.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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2-8


Keys, Doors, and Windows


Power Door Locks Press Q or K on the Remote Keyless Entry (RKE) transmitter. See Remote Keyless Entry (RKE) System Operation on page 2‑3.


Power Folding Mirrors Shown,


Other Models Similar


Q (Lock): Press to lock the doors. K (Unlock): Press to unlock the doors.


Delayed Locking When locking the doors with the power lock switch and a door or the liftgate is open, the doors will lock five seconds after the last door is closed. You will hear three chimes to signal that the delayed locking feature is in use. Pressing the power lock switch twice will override the delayed locking feature and immediately lock all the doors. This feature will not operate if the key is in the ignition. This feature can be programmed using the Driver Information Center (DIC). See “Delay Door Lock” under Vehicle Personalization (With DIC Buttons) on page 5‑45.


Automatic Door Locks The vehicle may have an automatic lock/unlock feature. This feature can be programmed using the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑45.


Lockout Protection If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock. If the passenger side power door lock switch is pressed when the front passenger door is open and the key is in the ignition, all of the doors will lock and then the front passenger door will unlock.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2-9


Safety Locks The vehicle has rear door security locks to prevent passengers from opening the rear doors from the inside.


To set the locks, insert a key into the slot and turn it to the horizontal position. The door can only be opened from the outside with the door unlocked. To return the door to normal operation, turn the slot to the vertical position.


Open the rear doors to access the security locks on the inside edge of each door.


Doors


Liftgate


{ 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. 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.


(Continued)


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Keys, Doors, and Windows


WARNING (Continued)


. 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.


. If the vehicle is equipped with


a power liftgate, disable the power liftgate function.


See Engine Exhaust on page 9‑28.


Notice: If you open the liftgate without checking for overhead obstructions such as a garage door, you could damage the liftgate or the liftgate glass. Always check to make sure the area above and behind the liftgate is clear before opening it.


A. License Plate Applique B. Liftgate Handle The liftglass or liftgate cannot be opened if the rear wiper is in motion. Attempting to open the liftglass or liftgate while the rear wiper is in motion will cause the release of the liftglass or liftgate to delay until the wipers are parked off the liftglass.


Manual Liftgate Operation To unlock the liftgate, press K on the power door lock switch or press K on the Remote Keyless Entry (RKE) transmitter twice. See Remote Keyless Entry (RKE) System Operation on page 2‑3. Press the touch pad on the underside of the liftgate handle (B) and lift up. Use the pull cup to lower and close the liftgate. Do not press the touch pad while closing the liftgate. This will cause the liftgate to be unlatched. Power Liftgate Operation On vehicles with a power liftgate, the switch is on the overhead console. The vehicle must be in P (Park) to use the power feature. The taillamps will flash and a chime will sound when the power liftgate moves.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2-11


{ WARNING


You, or others, could be injured if caught in the path of the power liftgate. Make sure there is no one in the way of the liftgate as it is opening and closing.


There are several ways to open and close the power liftgate: . Press and hold 8 on the RKE transmitter until the liftgate starts moving.


. Press 8 on the overhead


console.


. Press l on the bottom of the liftgate next to the latch to close.


Pressing a second time while the liftgate is moving reverses the direction.


To disable the power liftgate function, press OFF on the liftgate switch. The power liftgate may be temporarily disabled under extreme temperatures, or under low battery conditions. If this occurs, the liftgate can still be operated manually. If the transmission is shifted out of P (Park) while the power function is in progress, the liftgate power function will continue to completion. If the transmission is shifted out of P (Park) and the vehicle accelerates before the power liftgate latches closed, the liftgate may reverse to the open position. Cargo could fall out of the vehicle. Always make sure the power liftgate is closed and latched before driving away. If the liftgate is opened using power operation and the liftgate support struts have lost pressure, the turn signals flash and a chime will sound. The liftgate stays open


temporarily, and then slowly closes. See a dealer for service before using the liftgate. Obstacle Detection Features If the liftgate encounters an obstacle during a power open or close cycle, a warning chime will sound and the liftgate will automatically reverse direction to the full closed or open position. After removing the obstruction, the power liftgate operation can be used again. If the liftgate encounters multiple obstacles on the same power cycle, the power function will deactivate and a message will display in the Driver Information Center (DIC). See Object Detection System Messages on page 5‑39. After removing the obstructions, the liftgate will resume normal power operation.


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Keys, Doors, and Windows


Pinch sensors are located on the side edges of the liftgate. If an object is caught between the liftgate and the vehicle and presses against this sensor, the liftgate will reverse direction and open fully. The liftgate will remain open until it is activated again or closed manually. Manual Operation of Power Liftgate To change the liftgate to manual operation, press OFF on the liftgate switch. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. To open the liftgate, press the touch pad on the handle (B) and lift up. Use the pull cup to lower and close the liftgate. Do not press the touch pad while closing the liftgate. This will cause the liftgate to be unlatched. The liftgate latch will power close. Always close the liftgate before driving.


If 8 on the RKE transmitter or l on the liftgate is pressed while power operation is disabled, the lamps will flash three times, but the liftgate will not move. It is not recommended to drive with the liftgate open, however, when driving with the liftgate open; the liftgate should be set to manual operation by pressing OFF on the liftgate switch on the center console. The liftgate has an electric latch. If the battery is disconnected or has low voltage, the liftgate will not open. The liftgate will resume operation when the battery is reconnected and charged. If the battery is properly connected with adequate voltage, the switch is not disabled, and the liftgate still will not function, see a dealer for service.


Liftglass If equipped, there are two ways to open the liftglass: . Press the button on the


underside of the license plate applique (A).


. Press m on the RKE


transmitter.


Power Assist Steps


The vehicle may have power assist steps. To enable or disable the power assist steps push j.


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2-13


The power assist steps automatically extend from beneath the vehicle on the side in which the door has been opened. Once the door is closed, the assist steps automatically move back under the vehicle after a brief delay. The vehicle must not be moving for the assist steps to extend or retract. The assist steps cannot be disabled in the extended position.


Vehicle Security This vehicle has theft-deterrent features; however, they do not make the vehicle impossible to steal.


Vehicle Alarm System Your vehicle has a content theft-deterrent alarm system.


This is the security light. To arm the theft-deterrent system: 1. Open the door.


2. Lock the door with the Remote Keyless Entry (RKE) transmitter or the power door lock switch. The security light will come on to inform the driver the system is arming. If a door is open when the doors are locked, the security light will flash. If the delayed locking feature is turned on, the theft-deterrent system will not start the arming process until the last door is closed and the delay timer has expired. See Delayed Locking on page 2‑8.


3. Close all doors. The security light should go off after about 30 seconds. The alarm is not armed until the security light goes off.


If a locked driver door is opened without using the RKE transmitter, a 10-second pre-alarm will occur. The horn will chirp and the lights will flash. If the key is not placed in the ignition and turned to START or the door is not unlocked by pressing the


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Keys, Doors, and Windows


unlock button on the RKE transmitter during the 10-second pre-alarm, the alarm will go off. Your vehicle's headlamps will flash and the horn will sound for about 30 seconds, then will turn off to save the battery power. The theft-deterrent system will not activate if the doors are locked with the vehicle's key or the manual door lock. It activates only if you use the power door lock switch with the door open or the RKE transmitter. You should also remember that you can start your vehicle with the correct ignition key if the alarm has been set off. To avoid setting off the alarm by accident:


If you do not want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed.


. Always unlock the doors with the


RKE transmitter. Unlocking a door any other way will set off the alarm if it is armed.


If you set off the alarm by accident, press unlock on the RKE transmitter or place the key in the ignition and turn it to START to turn off the alarm. The alarm will not stop if you try to unlock a door any other way. Testing the Alarm To test the alarm: 1. From inside the vehicle, lower


the driver window and open the driver door.


2. Activate the system by locking the doors with the power door lock switch while the door is open, or with the RKE transmitter.


3. Get out of the vehicle, close the


door and wait for the security light to go out.


4. Then reach in through the


window, unlock the door with the manual door lock and open the door. This should set off the alarm.


While the alarm is set, the power door unlock switch will not work. If the alarm does not sound when it should but the headlamps flash, check to see if the horn works. The horn fuse may be blown. To replace the fuse, see Fuses and Circuit Breakers on page 10‑34. If the alarm does not sound or the headlamps do not flash, the vehicle should be serviced by your dealer.


Immobilizer See Radio Frequency Statement on page 13‑21 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310.


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Keys, Doors, and Windows


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Immobilizer Operation This vehicle has PASS-Key® III+ (Personalized Automotive Security System) theft-deterrent system. PASS-Key III+ is a passive theft-deterrent system. The system is automatically armed when the key is removed from the ignition. The system is automatically disarmed when the key is turned to ON/RUN, ACC/ACCESSORY, or START from the LOCK/OFF position. You do not have to manually arm or disarm the system. The security light will come on if there is a problem with arming or disarming the theft-deterrent system. When the PASS-Key III+ system senses that someone is using the wrong key, it prevents the vehicle from starting. Anyone using a trial-and-error method to start the


vehicle will be discouraged because of the high number of electrical key codes. If the engine does not start and the security light on the instrument panel cluster comes on when trying to start the vehicle, there may be a problem with the theft-deterrent system. Turn the ignition off and try again. If the engine still does not start, and the key appears to be undamaged, try another ignition key. At this time, you may also want to check the fuse. See Fuses and Circuit Breakers on page 10‑34. If the engine still does not start with the other key, the vehicle needs service. If the vehicle does start, the first key may be faulty. See your dealer who can service the PASS-Key III+ to have a new key made. It is possible for the PASS-Key III+ decoder to learn the transponder value of a new or replacement key. Up to 10 keys may be programmed for the vehicle. The following


procedure is for programming additional keys only. If all the currently programmed keys are lost or do not operate, you must see your dealer or a locksmith who can service PASS-Key III+ to have keys made and programmed to the system. See your dealer or a locksmith who can service PASS-Key III+ to get a new key blank cut exactly as the ignition key that operates the system. To program the new additional key:


1. Verify that the new key has a 1


2.


stamped on it. Insert the original, already programmed key in the ignition and start the engine. If the engine will not start, see your dealer for service.


3. After the engine has started, turn


the key to LOCK/OFF, and remove the key.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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2-16


Keys, Doors, and Windows


4.


Insert the new key to be programmed and turn it to the ON/RUN position within five seconds of turning the ignition to the LOCK/OFF position in Step 3. The security light will turn off once the key has been programmed.


5. Repeat Steps 1 through 4 if


additional keys are to be programmed.


If you lose or damage your PASS-Key III+ key, see your dealer or a locksmith who can service PASS-Key III+ to have a new key made. Do not leave the key or device that disarms or deactivates the theft-deterrent system in the vehicle.


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 right lane, you could hit a vehicle on the right. Check the inside mirror or glance over your shoulder before changing lanes.


The passenger side mirror is convex shaped. A convex mirror's surface is curved so more can be seen from the driver seat.


Manual Mirrors Vehicles with manual mirrors can be adjusted by moving the mirror up and down or left to right to see a little of the side of the vehicle, and have a clear view behind the vehicle. Using hood-mounted air deflectors and add-on convex mirror attachments could decrease mirror performance.


Trailer-Tow Mirrors


If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Manually pull out the mirror head to extend it for better visibility when towing a trailer. The lower portion of the mirror is convex. A convex mirror's surface is curved to see more from the driver seat. The convex mirror can be adjusted manually to the driver preferred position for better vision. The mirror may have a turn signal arrow that flashes in the direction of the turn or lane change.


Keys, Doors, and Windows


2-17


Power Mirrors


With Power Folding Mirrors


To adjust the mirrors: 1. Press (A) or (B) to select the


driver or passenger side mirror. 2. Press the arrows on the control


pad to move the mirror up, down, right, or left.


3. Adjust the outside mirror so that


the side of the vehicle and the area behind are seen.


4. Press either (A) or (B) again to


deselect the mirror.


With Manual Folding Mirrors


To adjust the mirrors: 1. Move the selector switch located


above the four-way control pad to the left or right to choose either the driver side or passenger side mirror.


2. Press one of the four arrows located on the control pad to move the mirror in the desired direction.


3. Adjust the outside mirror so that


the side of the vehicle and the area behind are seen.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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2-18


Keys, Doors, and Windows


Keep the selector switch in the center position when not adjusting either outside mirror. Exterior Automatic Dimming Mirror If the vehicle has the exterior automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of headlamps behind. This feature is controlled by the on and off setting on the inside automatic dimming rearview mirror. See Automatic Dimming Rearview Mirror on page 2‑20. Side Blind Zone Alert (SBZA) If the vehicle has the Side Blind Zone Alert (SBZA) system. See Side Blind Zone Alert (SBZA) on page 9‑51. Turn Signal Indicator The vehicle may also have a turn signal indicator on the mirror. An arrow on the mirror flashes in the direction of the turn or lane change.


Folding Mirrors


Power Folding


1. Press (A) to fold the mirrors out


to the driving position.


2. Press (B) to fold the mirrors in to


the folded position.


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 will 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 popping noise may be heard during the resetting of the power folding mirrors. This sound is normal after a manual folding operation. Manual Folding Fold the mirrors inward to prevent damage when going through an automatic car wash. To fold, pull the mirror toward the vehicle. Push the mirror outward, to return to its original position.


Heated Mirrors For vehicles with heated mirrors: 1 (Rear Window Defogger): Press to heat the mirrors.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2-19


See “Rear Window Defogger” under Dual Automatic Climate Control System on page 8‑4 or Climate Control Systems on page 8‑1 for more information.


Automatic Dimming Mirror If the vehicle has the automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of the headlamps from behind. This feature is controlled by the on and off setting on the inside rearview mirror. See Automatic Dimming Rearview Mirror on page 2‑20.


Park Tilt Mirrors If the vehicle has the memory package, the exterior mirrors tilt to a preselected position when the vehicle is in R (Reverse). This feature lets the driver view the curb when parallel parking. The mirrors return to the original position when the vehicle is shifted out of R (Reverse), or the ignition is turned off or to OFF/LOCK. This feature can be programed through the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑45 for more information.


Interior Mirrors


Manual Rearview Mirror To adjust the inside rearview mirror, hold the rearview mirror in the center and move it to view the area behind the vehicle. For vehicles with a manual rearview mirror, push the tab forward for daytime use and pull it rearward for nighttime use to avoid glare from the headlamps from behind. Vehicles with OnStar® have three control buttons at the bottom of the mirror. See a dealer for more information about OnStar and how to subscribe to it. See OnStar Overview on page 14‑1.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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2-20


Keys, Doors, and Windows


Automatic Dimming Rearview Mirror


Adjustment Hold the rearview mirror in the center and move it to view the area behind the vehicle.


Operation For vehicles with an automatic dimming rearview mirror, the mirror will automatically reduce the glare of the headlamps from behind. The dimming feature comes on each time the vehicle is started. O (On/Off): Press to turn the dimming feature on or off.


The vehicle may also have a Rear Vision Camera (RVC). See Rear Vision Camera (RVC) on page 9‑53
If the vehicle has a RVC, the O button for turning the dimming feature on or off will not be available. Vehicles with OnStar have three additional control buttons located at the bottom of the mirror. See a dealer for more information about OnStar and how to subscribe to it. See OnStar Overview on page 14‑1. Cleaning the Mirror 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.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2-21


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 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 keys in a vehicle with children. When there are children in the rear seat, use the window lockout button to prevent operation of the windows. See Keys on page 2‑2.


Power Folding Mirrors Shown,


Other Models Similar


The driver door has switches that control all windows. Each passenger door switch only controls that window. The power windows work when the ignition is in ON/ RUN or ACC/ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory Power (RAP) on page 9‑25 for more information.


Press the switch to lower the window. Pull the switch up to raise it. Express Down Windows Windows that have the express-down feature allow the windows to be lowered without holding the switch. Press the window switch fully and release it to activate the express-down feature. The express mode can be canceled at any time by briefly pressing, or pulling the switch.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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2-22


Keys, Doors, and Windows


Window Lockout


Sun Visors


Roof


Sunroof


Pull the sun visor down to block glare. Detach the sun visor from the center mount to pivot to the side window, or to extend along the rod, if available.


Power Folding Mirrors Shown,


Other Models Similar This feature prevents the rear passenger windows from operating, except from the driver position. . Press o to activate the rear


window locks. An indicator light will illuminate when the feature is on.


. Press o again to deactivate the


rear window locks.


A. Open or Close B. Vent On vehicles with a sunroof, the sunroof only operates when the ignition is in ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) on page 9‑25.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2-23


Vent: From the closed position, press the rear of switch (B) to vent the sunroof. Open/Close: To open the sunroof, press and hold switch (A) until the sunroof reaches the desired position. Press and hold the front of switch (A) to close it. Express-Open/Express-Close: To express-open the sunroof, fully press and release the rear of switch (A) until the sunroof reaches the desired position. To express-close the sunroof, fully press and release the front of switch (A). Press the switch again to stop it.


When the sunroof is opened, an air deflector will automatically raise. The air deflector will retract when the sunroof is closed. The sunroof also has a sunshade which can be pulled forward to block sun rays. The sunshade must be opened and closed manually. If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof.


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.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Keys, Doors, and Windows


2 NOTES


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Seats and Restraints


3-1


Seats and Restraints


Head Restraints


Head Restraints . . . . . . . . . . . . . . . 3-2


Front Seats


Seat Adjustment . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-3
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-4
Reclining Seatbacks . . . . . . . . . . 3-5
Memory Seats . . . . . . . . . . . . . . . . 3-7
Heated and Ventilated Front


Seats . . . . . . . . . . . . . . . . . . . . . . . . 3-9


Rear Seats


Heated Rear Seats . . . . . . . . . . 3-10
Second Row Seats . . . . . . . . . . 3-11
Third Row Seats . . . . . . . . . . . . . 3-15


Safety Belts


Safety Belts . . . . . . . . . . . . . . . . . . 3-18
How to Wear Safety Belts


Properly . . . . . . . . . . . . . . . . . . . . 3-19


Lap-Shoulder Belt . . . . . . . . . . . 3-20
Safety Belt Use During


Pregnancy . . . . . . . . . . . . . . . . . . 3-26
Lap Belt . . . . . . . . . . . . . . . . . . . . . 3-26
Safety Belt Extender . . . . . . . . . 3-27
Safety System Check . . . . . . . . 3-27
Safety Belt Care . . . . . . . . . . . . . 3-27
Replacing Safety Belt System


Parts after a Crash . . . . . . . . . 3-28


Airbag System


Airbag System . . . . . . . . . . . . . . . 3-28
Where Are the Airbags? . . . . . 3-30
When Should an Airbag


Inflate? . . . . . . . . . . . . . . . . . . . . . 3-32


What Makes an Airbag


Adding Equipment to the


Airbag-Equipped Vehicle . . . 3-41
Airbag System Check . . . . . . . . 3-42
Replacing Airbag System


Parts after a Crash . . . . . . . . . 3-43


Child Restraints


Older Children . . . . . . . . . . . . . . . 3-43
Infants and Young


Children . . . . . . . . . . . . . . . . . . . . 3-45
Child Restraint Systems . . . . . 3-48
Where to Put the Restraint . . . 3-49
Lower Anchors and Tethers


for Children (LATCH System) . . . . . . . . . . . . . . . . . . . . 3-51


Replacing LATCH System


Inflate? . . . . . . . . . . . . . . . . . . . . . 3-34


Parts After a Crash . . . . . . . . . 3-58


How Does an Airbag


Restrain? . . . . . . . . . . . . . . . . . . . 3-34


What Will You See after an


Securing Child Restraints


(Center Front Seat Position) . . . . . . . . . . . . . . . . . . . 3-58


Airbag Inflates? . . . . . . . . . . . . 3-35


Securing Child Restraints


Passenger Sensing


System . . . . . . . . . . . . . . . . . . . . . 3-36


Servicing the Airbag-Equipped


Vehicle . . . . . . . . . . . . . . . . . . . . . 3-40


(Right Front Seat Position) . . . . . . . . . . . . . . . . . . . 3-58


Securing Child Restraints


(Rear Seat) . . . . . . . . . . . . . . . . . 3-61


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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3-2


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.


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. Front Seats The front seats have 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.


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. The front seat outboard head restraints are not designed to be removed. Rear Seats The vehicle's second-row seats have head restraints in the outboard seating positions that cannot be adjusted. The vehicle's third-row seats, if equipped, have adjustable headrests in the outboard seating positions. The height of the headrest can be adjusted. Pull the headrest up to raise it. To lower the headrest, push down on the headrest. Rear seat head restraints and headrests are not designed to be removed.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Front Seats


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.


Seats and Restraints


3-3


Center Seat If equipped, the center front seatback doubles as an armrest and cupholder/storage area for the driver and passenger when the center front seat is not used. Do not use it as a seating position when the seatback is folded down.


To adjust the seat: 1. Lift the bar under the front edge


of the seat cushion to unlock the seat.


2. Slide the seat to the desired position and release the bar.


3. Try to move the seat back and


forth to be sure the seat is locked in place.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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3-4


Seats and Restraints


Power Seat Adjustment


Lumbar Adjustment


Manual Lumbar


If available, raise or lower the front or rear part of the seat cushion by moving the front or rear of the control up or down. If available, raise or lower the entire seat by moving the entire control up or down.


To adjust the seatback, see “Power Reclining Seatbacks” under Reclining Seatbacks on page 3‑5.


To adjust a power seat, if equipped: . Move the seat forward or


rearward by sliding the control forward or rearward.


If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


Black plate (5,1)


Power Lumbar


To adjust the power lumbar support, if equipped: . On vehicles with two-way


lumbar, press and hold the top or bottom of the control to increase or decrease lumbar support.


. On vehicles with four-way


lumbar, press and hold the front or rear of the control to increase or decrease lumbar support. To


raise or lower the height of the support, press and hold the top or bottom of the control.


Reclining Seatbacks { WARNING


Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the safety 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.


(Continued)


Seats and Restraints


3-5


WARNING (Continued)


For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear the safety belt properly.


Do not have a seatback reclined if the vehicle is moving.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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3-6


Seats and Restraints


Manual Reclining Seatbacks


{ 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.


To return the seatback to the upright position: 1. Lift the lever fully without applying pressure to the seatback, and the seatback will return to the upright position.


2. Push and pull on the seatback to


make sure it is locked.


To adjust a manual seatback: 1. Lift the lever.


The seatback will automatically fold forward.


2. To recline, move the seatback


rearward to the desired position, then release the lever to lock the seatback in place.


3. Push and pull on the seatback to


make sure it is locked.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Power Reclining Seatbacks


Memory Seats


To recline a power seatback, if equipped:


Tilt the top of the control rearward to recline. Tilt the top of the control forward to raise.


If available, the controls on the driver door are used to program and recall memory settings for the driver seat, outside mirrors, and the adjustable throttle and brake pedals, if equipped.


Seats and Restraints


3-7


Storing Memory Positions To save into memory: 1. Adjust the driver seat, seatback


recliner, both outside mirrors, and the throttle and brake pedals, if equipped. See Power Mirrors on page 2‑17
and Adjustable Throttle and Brake Pedal on page 9‑21. Not all mirrors and adjustable throttle and brake pedals will have the ability to save and recall their positions.


2. Press and hold “1” until


two beeps sound.


3. Repeat for a second driver


position using “2.”


To recall, press and release “1” or “2.” The vehicle must be in P (Park). A single beep will sound. The seat, outside mirrors, and adjustable throttle and brake pedals will move to the position previously stored for the identified driver.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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3-8


Seats and Restraints


Memory Remote Recall The memory feature can recall the driver seat, outside mirrors, and pedals, if equipped, to stored positions when entering the vehicle. To activate, unlock the driver door with the Remote Keyless Entry (RKE) transmitter. The driver seat, outside mirrors, and adjustable pedals, if equipped, will move to the memory position associated with the transmitter used to unlock the vehicle. This feature can be turned on or off using the vehicle personalization menu. See Vehicle Personalization (With DIC Buttons) on page 5‑45. To stop recall movement, press one of the power seat controls, memory buttons, or power mirror buttons, or the adjustable pedal switch.


If something has blocked the driver seat and/or the adjustable pedals while recalling a memory position, the recall may stop. Remove the obstruction; then press and hold the appropriate manual control for the memory item that is not recalling for two seconds. Try recalling the memory position again by pressing the appropriate memory button. If the memory position is still not recalling, see your dealer for service.


Easy Exit Driver Seat This feature can move the seat rearward to allow extra room to exit the vehicle. B (Easy Exit Driver Seat): Press to recall the easy exit seat position. The vehicle must be in P (Park). If the easy exit seat feature is programmed on in the vehicle personalization menu, automatic seat movement occurs when the ignition key is removed.


A single beep sounds. The driver seat moves back approximately 8 cm (3 in). To move the seat back farther, press B again until the seat is all the way back. If something has blocked the driver seat while recalling the exit position, the recall may stop. Remove the obstruction; then press and hold the power seat control rearward for two seconds. Try recalling the exit position again. If the exit position is still not recalling, see your dealer for service. See Vehicle Personalization (With DIC Buttons) on page 5‑45.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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Heated and Ventilated Front Seats


{ WARNING


If you cannot feel temperature change or pain to the skin, the seat heater may cause burns. To reduce the risk of burns, people with such a condition should 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.


Heated and Cooled Seat Buttons


Shown, Heated Seat Buttons


Similar


If available,


If available, the buttons are on the front doors. To operate, the ignition must be in ON/RUN. H (Cooled Seat): press to cool the seat. I (Heated Seatback): Press to heat the seatback only. J (Heated Seat and Seatback): Press to heat the seat and seatback.


Seats and Restraints


3-9


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 lights indicate three for the highest setting and one for the lowest. The passenger seat may take longer to heat up. On vehicles with heated seats, the heated seats are canceled 10 seconds after the ignition is turned off. On vehicles with heated and cooled seats, the heated and cooled seats are canceled when the ignition is turned off. To use this feature after restarting the vehicle, press the desired button again.


GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12


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3-10


Seats and Restraints


Remote Start Heated Seats When it is cold outside, the heated seats may turn on automatically during a remote vehicle start. The heated seats will be canceled when the ignition is turned on. Press the desired button to use the heated seats after the vehicle is started. The lights on the heated seat buttons do not turn on during a remote start. The temperature performance of an unoccupied seat may be reduced. This is normal. See Remote Vehicle Start on page 2‑5.


Rear Seats


Heated Rear Seats { WARNING


If you cannot feel temperature change or pain to the skin, the seat heater may cause burns. See the Warning under Heated and Ventilated Front Seats on page 3‑9.


If available, the buttons are on the Rear Seat Audio (RSA) panel on the rear of the center console.


Press M or L to heat the left outboard or right outboard seat cushion. An indicator on the RSA display appears when this feature is on. Press the button once for the highest setting. With each press of the button, the heated seat changes to the next lower setting, and then

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