2014 GMC Sierra Owners Manual

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 when activated. See OnStar Overview on page 14-1.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (1,1)

Keys, Doors, and Windows

Keys and Locks

Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)

System . . . . . . . . . . . . . . . . . . . . . . 2-3

Remote Keyless Entry (RKE)

System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-6
Door Locks . . . . . . . . . . . . . . . . . . . 2-7
Power Door Locks . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . 2-9
Automatic Door Locks . . . . . . . . . 2-9
Lockout Protection . . . . . . . . . . . . 2-9
Safety Locks . . . . . . . . . . . . . . . . . . 2-9

Doors

Tailgate . . . . . . . . . . . . . . . . . . . . . . 2-10

Vehicle Security

Vehicle Security . . . . . . . . . . . . . . 2-11
Vehicle Alarm System . . . . . . . . 2-11
Immobilizer . . . . . . . . . . . . . . . . . . 2-13
Immobilizer Operation . . . . . . . 2-13

Keys, Doors, and Windows

2-1

Exterior Mirrors

Convex Mirrors . . . . . . . . . . . . . . 2-14
Manual Mirrors . . . . . . . . . . . . . . . 2-14
Trailer-Tow Mirrors . . . . . . . . . . . 2-14
Power Mirrors . . . . . . . . . . . . . . . . 2-14
Folding Mirrors . . . . . . . . . . . . . . . 2-15
Heated Mirrors . . . . . . . . . . . . . . . 2-16
Automatic Dimming Mirror . . . 2-17
Blind Spot Mirrors . . . . . . . . . . . 2-17
Reverse Tilt Mirrors . . . . . . . . . . 2-18

Interior Mirrors

Interior Rearview Mirrors . . . . . 2-18
Manual Rearview Mirror . . . . . . 2-18
Automatic Dimming Rearview

Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-19

Windows

Windows . . . . . . . . . . . . . . . . . . . . . 2-19
Manual Windows . . . . . . . . . . . . 2-19
Power Windows . . . . . . . . . . . . . 2-19
Rear Windows . . . . . . . . . . . . . . . 2-22
Sun Visors . . . . . . . . . . . . . . . . . . . 2-22

Roof

Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-23

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.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (2,1)

2-2

Keys, Doors, and Windows

Programming Keys Follow these procedures to program up to eight keys to the vehicle.

Programming with a Recognized Key To program a new key: 1.

Insert the original, already programmed key in the ignition and turn the key to the ON/RUN position.

2. Turn the key to LOCK/OFF, and

3.

remove the key. Insert the new key to be programmed and turn it to the ON/RUN position within five seconds. The security light will turn off once the key has been programmed.

4. Repeat Steps 1–3 if additional

keys are to be programmed.

If a key is lost or damaged, see your dealer to have a new key made.

Programming without a Recognized Key Program a new key to the vehicle when a recognized key is not available. Canadian regulations require that owners see their dealer. If there are no currently recognized keys available, follow this procedure to program the first key. This procedure will take approximately 30 minutes to complete for the first key. The vehicle must be off and all of the keys you wish to program must be with you. 1.

Insert the new vehicle key into the ignition.

2. Turn to ON/RUN. The security

light will come on.

3. Wait 10 minutes until the

security light turns off.

4. Turn the ignition to LOCK/OFF.

The key is used for the ignition and all door locks.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (3,1)

Keys, Doors, and Windows

2-3

Remote Keyless Entry (RKE) System Operation The RKE transmitter functions may work up to 60 m (197 ft) away from the vehicle. Other conditions can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2-3.

5. Repeat Steps 2–4 two more

times. After the third time, turn to ON/RUN; the key is learned and all previously known keys will no longer work with the vehicle.

Remaining keys can be learned by following the procedure in “Programming with a Recognized Key.” 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 it becomes difficult to turn a key, inspect the key blade for debris. Periodically clean with a brush or pick. 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 13-15. 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. If the transmitter is still not working correctly, see your dealer or a qualified technician for service.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (4,1)

2-4

Keys, Doors, and Windows

when Q is pressed again within three seconds. See Vehicle Personalization on page 5-45. Pressing Q arms the content theft-deterrent system. See Vehicle Alarm System on page 2-11. If equipped with auto mirror folding, pressing and holding Q for one second will fold the mirrors. The auto mirror folding feature will not operate unless it is enabled. See Vehicle Personalization on page 5-45. 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 on page 5-45. If enabled through the DIC, the

exterior lamps may turn on. See Vehicle Personalization on page 5-45. Pressing K on the RKE transmitter disarms the content theft-deterrent system. See Vehicle Alarm System on page 2-11. If equipped with auto mirror folding, pressing and holding K for one second will unfold the mirrors. The auto mirror folding feature will not operate unless it is enabled. See Vehicle Personalization on page 5-45. 7 (Vehicle Locator/Panic Alarm): Press and release one time to initiate vehicle locator. The turn signal lamps flash and the horn sounds three times. Press and hold 7 for at least three seconds to sound 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

With Remote Start (without

Remote Start Similar)

/ (Remote Vehicle Start): If equipped, / is used to start the engine from outside the vehicle using the RKE transmitter. See Remote Vehicle Start on page 2-6. Q (Lock): Press to lock all 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

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (5,1)

Keys, Doors, and Windows

2-5

{ Caution

When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.

To replace the battery:

ON/RUN or 7 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. Each vehicle can have up to eight transmitters programmed to it. See your dealer for transmitter programming. Battery Replacement Replace the battery in the transmitter soon if the REPLACE BATTERY IN REMOTE KEY message displays in the DIC.

1. Separate and remove the back cover of the transmitter with a flat, thin object, such as a coin.

2. Press and slide the battery down

toward the pocket of the transmitter in the direction of the key ring. Do not use a metal object

3. Remove the battery. 4.

Insert the new battery, positive side facing up. Replace with a CR2032 or equivalent battery. 5. Push together the transmitter back cover top side first, and then the bottom toward the key ring.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (6,1)

2-6

Keys, Doors, and Windows

Remote Vehicle Start If equipped, this feature starts 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. The climate control system will use the previous settings during a remote start. The rear defog may come on during remote start based on cold ambient conditions. The rear fog indicator light does not come on during remote start. If the vehicle has heated seats and the feature is turned on in vehicle personalization, the heated seats will turn on during colder outside temperatures and will shut off when the key is turned to ON/RUN. See Heated and Cooled Front Seats on page 3-8.

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. Other conditions can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2-3 or Vehicle Personalization on page 5-45. / (Remote Vehicle Start): This button will be on the RKE transmitter if the vehicle has remote start.

Starting the Engine Using Remote Start 1. Aim the RKE transmitter at the

2.

vehicle and press and release Q. Immediately press and hold / until the turn signal lamps flash or for at least four seconds. When the vehicle starts, the parking lamps will turn on. 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.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (7,1)

Keys, Doors, and Windows

2-7

Turn on the hazard warning flashers. Turn the ignition on and then off.

The vehicle can be remote started two separate times between driving sequences. The engine will run for 10 minutes after each remote 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. The vehicle cannot be remote started if the key is in the ignition, if the hood is not closed, or if there is an emission control system malfunction and the malfunction indicator lamp 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.

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.

(Continued)

Extending Engine Run Time The engine run time can be extended by another 10 minutes, if during the first 10 minutes Steps 1–2 are repeated while the engine is still running. This provides a total of 20 minutes. The remote start can only be extended once. When the remote start is extended, the second 10-minute period is added on to the first 10 minutes for a total of 20 minutes. A maximum of two remote starts, or a remote start with an extension, are allowed between ignition cycles. The vehicle's ignition must be changed to ON/RUN/START and then back to OFF before the remote start procedure can be used again.

Canceling a Remote Start . Aim the RKE transmitter at the vehicle and press and hold / until the parking lamps turn off.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (8,1)

2-8

Keys, Doors, and Windows

Warning (Continued)

. 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 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. See Power Door Locks on page 2-8. From inside, pull the door handle once to unlock the door. Pull the handle again to open the door. See Vehicle Alarm System on page 2-11.

Power Door Locks

Crew/Double Cab Premium Shown, Other Models Similar

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (9,1)

Keys, Doors, and Windows

2-9

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. This feature may be turned off and on through vehicle personalization. See Vehicle Personalization on page 5-45.

Safety Locks The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle.

Pressing the power lock switch twice overrides the delayed locking feature and immediately locks all doors. This feature will not operate if the key is in the ignition. Turn delayed locking on or off using vehicle personalization. See Vehicle Personalization on page 5-45.

Automatic Door Locks The doors will lock automatically when all doors are closed, the ignition is on, and the shift lever is moved out of P (Park). To unlock the doors: . Press K on a door. . Shift the transmission into

P (Park).

Base Trim

Q : Press to lock the doors. K : Press to unlock the doors.

Delayed Locking If equipped, when locking the doors with the power lock switch and a door open, the doors will lock five seconds after the last door is closed. Three chimes signal that delayed locking is in use.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (10,1)

2-10

Keys, Doors, and Windows

To shut the tailgate, firmly push it upward until it latches. After closing the tailgate, pull it back to be sure it latches securely. Tailgate Removal The tailgate can be removed to allow for different loading situations. Assistance may be needed with the removal to avoid damage to the vehicle. On vehicles with a Rear Vision Camera, it must be disconnected before removing the tailgate. See Driver Assistance Systems on page 9-60.

Doors

Tailgate

{ Warning

It is extremely dangerous to ride on the tailgate, even when the vehicle is operated at low speeds. People riding on the tailgate can easily lose their balance and fall in response to vehicle maneuvers. Falling from a moving vehicle may result in serious injuries or death. Do not allow people to ride on the tailgate. Be sure everyone in your vehicle is in a seat and using a safety belt properly.

On vehicles with a lock on the tailgate, use the key to lock or unlock the tailgate. Open the tailgate by lifting up on its handle while pulling the tailgate down.

Crew/Double Cab Premium

Shown, Others Similar

Press { to activate the safety locks on the rear doors. The indicator light comes on when activated. The vehicle must be on, in ACC/ ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory Power (RAP) on page 9-29. If the indicator light flashes, the feature may not be working properly.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (11,1)

Keys, Doors, and Windows

2-11

To remove the tailgate:

2. With the tailgate about halfway

open, lift the right edge of the tailgate from the lower pivot. On vehicles with the tailgate assist feature, raise the tailgate nearly all the way to the closed position prior to removing the left edge.

3. Move the tailgate to the right and

away to release the left edge. Reverse this procedure to reinstall the tailgate. Make sure the tailgate is secure.

1. Raise the tailgate and support it

firmly. Pull out and hold the cable retaining clip (1). Push the cable (3) up and off of the bolt (2). Repeat on the other side.

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

Vehicle Alarm System

If equipped with the 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 or the hood is open.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (12,1)

2-12

Keys, Doors, and Windows

Slow Flash: Alarm system is armed. Arming the Alarm System 1. Turn off the vehicle. 2. Lock the vehicle with one of the

following:

Use the RKE transmitter. 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 RKE transmitter a second time will bypass the 30-second delay and immediately arm the alarm system.

The theft-deterrent alarm system will not arm if the doors are locked with the key.

If the driver door is opened without first unlocking the RKE transmitter, 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 RKE transmitter during the 10-second pre-alarm, the alarm will be activated. If a door or the hood is opened without first disarming the system, the turn signals will flash and the horn will sound for about 30 seconds. The alarm system will then re-arm to monitor for 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 RKE transmitter. . 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

RKE transmitter.

Unlocking the driver door with the key will not disarm the system or turn off the alarm. How to Detect a Tamper Condition If K is pressed on the RKE transmitter and the horn chirps three times, an alarm occurred previously while the alarm system was armed.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (13,1)

Keys, Doors, and Windows

2-13

It is possible for the immobilizer system to learn new or replacement keys. Up to eight keys can be programmed for the vehicle. To program additional keys, see Keys on page 2-1. To program additional transmitters, see Remote Keyless Entry (RKE) System Operation on page 2-3. Do not leave the key or device that disarms or deactivates the vehicle theft system in the vehicle. See your dealer to get a new key blank cut exactly as the ignition key that operates the system.

The security light, in the instrument cluster, comes on if there is a problem with arming or disarming the theft-deterrent system. When trying to start the vehicle, the security light comes on briefly when the ignition is turned on. 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 engine still does not start, and the key appears to be undamaged, try another ignition key. It may be necessary to check the fuse. See Fuses on page 10-43. 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.

Immobilizer See Radio Frequency Statement on page 13-15.

Immobilizer Operation

This vehicle has a passive theft-deterrent system. The system does not have to be manually armed or disarmed. The vehicle is automatically immobilized when the vehicle is turned off. The system is automatically disarmed when the key is turned to ON/RUN, ACC/ACCESSORY, or START from the LOCK/OFF position.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (14,1)

2-14

Keys, Doors, and Windows

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 If equipped, adjust manual mirrors by moving the mirror up and down or left to right to see a little of the side of the vehicle and to 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

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.

Power Mirrors

If equipped, adjust trailer-tow mirrors for a clearer view of the objects behind you. 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

Base Power Mirrors

If equipped with power mirrors: 1. Press (1) or (2) to select the

driver or passenger side mirror.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (15,1)

Keys, Doors, and Windows

2-15

2. Press one of the four arrows on

2. Press one of the four 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. Move the selector switch to the

center position when not adjusting either outside mirror.

the control pad while the indicator light on button (1) or (2) is illuminated, 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 either (1) or (2) again to

deselect the mirror.

If you do not deselect the mirror, the feature will turn off after about one minute. If equipped, the mirrors may include a memory function that works with the memory seats. See Memory Seats on page 3-6.

Crew/Double Cab Premium Shown, Other Models Similar

1. Press (1) or (2) to select the

driver or passenger side mirror.

Folding Mirrors

Power Folding If equipped with power folding mirrors: 1. Press g (2) to fold the mirrors

out to the driving position.

2. Press g (2) again to fold the

mirrors in to the folded position.

The mirrors may also include a memory function that works with the memory seats. See Memory Seats on page 3-6.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (16,1)

2-16

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 will not stay in the unfolded position. The mirrors vibrate at normal driving speeds.

Fold and unfold the mirrors three times using the mirror controls to reset them to their normal position. A popping noise may be heard. This sound is normal after a manual folding operation. Manual Folding If equipped, push the mirror toward the vehicle to fold. Push the mirror outward to return to its original position.

Manually fold the mirrors inward to prevent damage when going through an automatic car wash. Auto Folding Mirrors If equipped, with the ignition off, press and hold Q on the RKE transmitter for approximately one second to fold the mirrors. Press and hold K on the RKE transmitter to unfold the mirrors. See Remote Keyless Entry (RKE) System Operation on page 2-3. This feature is turned on and off through Vehicle Personalization. See Vehicle Personalization on page 5-45. Turn Signal Indicator If equipped, indicator lights on the mirror flash in the direction of the turn or lane change.

Heated Mirrors 1 (Rear Window Defogger): If equipped, the rear window defogger also heats the side mirrors. W (Heated Side Mirrors): If equipped, press to turn the heated mirrors on or off. If the vehicle has trailer-tow mirrors, only the upper glass of the mirror is heated. The lower convex part of the towing mirrors is not heated. See “Rear Window Defogger” under Climate Control Systems (with Heater Only) on page 8-1 or Climate Control Systems (with Air Conditioning) on page 8-3 or Dual Automatic Climate Control System on page 8-5.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (17,1)

Keys, Doors, and Windows

2-17

Driving with the Blind Spot Mirror

Automatic Dimming Mirror If equipped, the driver outside mirror automatically adjusts for the glare of the headlamps from behind. This feature comes on when the vehicle is started.

Blind Spot Mirrors If equipped, there is a small convex mirror built into the upper and outer corner of the driver outside rearview mirror. It can show objects that may be in the vehicle's blind zone.

1. When the approaching vehicle is a long distance away, the image in the main mirror is small and near the inboard edge of the mirror.

2. As the vehicle gets closer, the image in the main mirror gets larger and moves outboard.

3. As the vehicle enters the blind

zone, the image transitions from the main mirror to the blind spot mirror.

4. When the vehicle is in the blind zone, the image only appears in the blind spot mirror.

Actual Mirror View

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (18,1)

2-18

Keys, Doors, and Windows

Using the Outside Mirror with the Blind Spot Mirror 1. Set the main mirror so that the side of the vehicle can just be seen and the blind spot mirror has an unobstructed view.

2. When checking for traffic or

before changing a lane, look at the main driver/passenger side mirror to observe traffic in the adjacent lane, behind your vehicle. Check the blind spot mirror for a vehicle in the blind zone. Then, glance over your shoulder to double check before moving slowly into the adjacent lane.

Reverse Tilt Mirrors If equipped with the memory package, the passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This feature allows the driver to view the curb when parallel parking. The mirror(s) return to the original position when the vehicle is shifted out of R (Reverse), the ignition is turned off or to OFF/ LOCK, or if the vehicle is driven in (R) above a predetermined speed. Turn this feature on or off through vehicle personalization. See Vehicle Personalization on page 5-45.

Interior Mirrors

Interior Rearview Mirrors Adjust the rearview mirror for a clear view of the area behind your vehicle. If equipped with OnStar, the vehicle may have three control buttons at the bottom of the mirror. See your dealer for more information about OnStar and how to subscribe to it. See OnStar Overview on page 14-1. Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water.

Manual Rearview Mirror If equipped, push the tab forward for daytime use and pull it rearward for nighttime use to avoid glare from the headlamps from behind.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (19,1)

Keys, Doors, and Windows

2-19

Automatic Dimming Rearview Mirror If equipped, the mirror will automatically reduce the glare of the headlamps from behind. The dimming feature comes on each time the vehicle is started.

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.

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.

Manual Windows If equipped, turn the hand crank on each door to manually raise or lower the manual windows.

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 2-1.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (20,1)

2-20

Keys, Doors, and Windows

. Will stop operation when any

door is opened.

Press the switch down to lower the window, and pull up the front of the switch to raise the window. Express-Down Windows If equipped, the express-down feature allows the window to be lowered without holding the switch. Press the window switch down fully and release it to activate the express-down feature. The express-down feature can be canceled at any time by briefly pressing the switch. Express-Up Window If equipped, the driver window express-up feature allows the window to be raised without holding the switch. Pull the window switch up fully and release it to activate the express-up feature. The express-up feature can be canceled at any time by briefly pulling the switch.

Crew/Double Cab Premium Shown, Other Models Similar

Regular Cab Uplevel Shown, Other

Models Similar

If equipped, the driver door has a switch to control all windows. Each passenger door has a switch to control that window. The power windows: . Can be operated with the

ignition in ON/RUN or ACC/ ACCESSORY.

. Can be operated in Retained Accessory Power (RAP). See Retained Accessory Power (RAP) on page 9-29.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (21,1)

Keys, Doors, and Windows

2-21

The anti-pinch feature can be overridden in a supervised mode. Hold the window switch in the partially or fully pulled up position. The window rises for as long as the switch is held. Once the switch is released, the express mode is reactivated. In this mode, the window can still close on an object in its path. Use care when using the override mode.

Programming the Power Windows If the battery on the vehicle has been recharged or disconnected, or is not working, the driver power window will need to be reprogrammed for the express-up feature to work. To reprogram the power windows: 1. Close all doors. 2. Place the ignition in ACC/ ACCESSORY or ON/RUN/ START.

3. From any open position, pull the power window switch up until the window is fully closed. 4. Hold the switch up for

approximately two seconds after the window is fully closed.

The window is now reprogrammed.

Express Window Anti-Pinch Feature If any object is in the path of the window when express-up is active, the window stops at the obstacle and auto-reverses to a preset factory position. Weather conditions such as severe icing also cause the window to auto-reverse. The window returns to normal operation once the obstacle or condition is removed. Express Window Anti-Pinch Override

{ Warning

If express override is activated, the window will not reverse automatically. You or others could be injured and the window could be damaged. Before you use express override, make sure that all people and obstructions are clear of the window path.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (22,1)

2-22

Keys, Doors, and Windows

Window Lockout

Rear Windows

Power Sliding Rear Window

The power sliding rear window cannot be operated manually.

Sun Visors

Crew/Double Cab Premium Shown, Other Models Similar

Z (Window Lockout): The driver door power window switch has a lockout feature. This feature prevents the rear windows from operating, except from the driver position. Press the switch to engage or disengage the lockout feature. An indicator light on the switch will come on when the lockout feature is engaged, and will go off when disengaged.

If equipped, the power sliding rear window works when the ignition has been turned to ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) on page 9-29. . Press the switch to open the

window.

. Pull the switch to close the

window.

Pull the sun visor down to block glare. If equipped, detach the sun visor from the center mount to pivot to the side window or to extend along the rod.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (23,1)

Keys, Doors, and Windows

2-23

Roof

Sunroof

If equipped, the sunroof 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 9-29. Vent: From the closed position, press the rear of the TILT switch to vent the sunroof.

Manual-Open/Manual-Close: To open the sunroof, press and hold the rear of the SLIDE switch until the sunroof reaches the desired position. Press and hold the front of the SLIDE switch to close it Express-Open/Express-Close: To express-open the sunroof, fully press and release the rear of the SLIDE switch until the sunroof reaches the desired position. To express-close the sunroof, fully press and release the front of the SLIDE switch. 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 tracks. If water is seen dripping into the water drainage system, this is normal.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (24,1)

2-24

Keys, Doors, and Windows

2 NOTES

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (1,1)

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 . . . . . . . . . . . . . . . . 3-6
Heated and Cooled Front

Seats . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Rear Seats

Rear Seats (Extended Cab

Full Bench) . . . . . . . . . . . . . . . . . 3-10
Rear Seats (Split Bench) . . . . . 3-11

Safety Belts

Safety Belts . . . . . . . . . . . . . . . . . . 3-12
How to Wear Safety Belts

Properly . . . . . . . . . . . . . . . . . . . . 3-13

Lap-Shoulder Belt . . . . . . . . . . . 3-14
Safety Belt Use During

Pregnancy . . . . . . . . . . . . . . . . . . 3-19
Lap Belt . . . . . . . . . . . . . . . . . . . . . 3-19
Safety Belt Extender . . . . . . . . . 3-20
Safety System Check . . . . . . . . 3-20
Safety Belt Care . . . . . . . . . . . . . 3-20
Replacing Safety Belt System

Parts after a Crash . . . . . . . . . 3-21

Airbag System

Airbag System . . . . . . . . . . . . . . . 3-21
Where Are the Airbags? . . . . . 3-23
When Should an Airbag

Inflate? . . . . . . . . . . . . . . . . . . . . . 3-25

What Makes an Airbag

Adding Equipment to the

Airbag-Equipped Vehicle . . . 3-36
Airbag System Check . . . . . . . . 3-37
Replacing Airbag System

Parts after a Crash . . . . . . . . . 3-37

Child Restraints

Older Children . . . . . . . . . . . . . . . 3-38
Infants and Young

Children . . . . . . . . . . . . . . . . . . . . 3-40
Child Restraint Systems . . . . . 3-42
Where to Put the Restraint . . . 3-44
Lower Anchors and Tethers

for Children (LATCH System) . . . . . . . . . . . . . . . . . . . . 3-46

Replacing LATCH System

Inflate? . . . . . . . . . . . . . . . . . . . . . 3-26

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

How Does an Airbag

Securing Child Restraints

Restrain? . . . . . . . . . . . . . . . . . . . 3-27

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

What Will You See after an

Airbag Inflates? . . . . . . . . . . . . 3-27
Airbag On-Off Switch . . . . . . . . 3-28
Passenger Sensing

System . . . . . . . . . . . . . . . . . . . . . 3-31

Servicing the Airbag-Equipped

Vehicle . . . . . . . . . . . . . . . . . . . . . 3-35

Securing Child Restraints

(Front Outboard Passenger Seat) . . . . . . . . . . . 3-58

Securing Child Restraints

(Rear Seat) . . . . . . . . . . . . . . . . . 3-68

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (2,1)

3-2

Seats and Restraints

Head Restraints

Front Seats The vehicle’s front seats have adjustable head restraints in the outboard seating positions. { 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.

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 restraint down. Try to move the head restraint after the button is released to make sure that it is locked in place. On some models, the head restraints adjust forward and rearward. To adjust the head

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (3,1)

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

To adjust a manual seat: 1. Pull the handle at the front of

the seat.

2. Slide the seat to the desired

position and release the handle.

3. Try to move the seat back and

forth to be sure it is locked in place.

To adjust the seatback, see Reclining Seatbacks on page 3-5. To adjust the lumbar support, see Lumbar Adjustment on page 3-4.

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.

restraint forward, grasp the head restraint and pull forward to the desired locking position. To adjust the head restraint rearward, grasp the head restraint and pull forward fully until the mechanism releases and allows the head restraint to return to the full rear position. The front seat outboard head restraints are not designed to be removed. Rear Seats The rear seat has 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 the headrest down. If you are installing a child restraint in the rear seat, see “Securing a Child Restraint Designed for the LATCH System” under Lower Anchors and Tethers for Children (LATCH System) on page 3-46.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (4,1)

3-4

Seats and Restraints

Power Seat Adjustment

Power Lumbar

To adjust the lumbar support, see Lumbar Adjustment on page 3-4. Some vehicles are equipped with a feature that activates a vibrating pulse alert in the driver seat to help the driver avoid crashes. See Driver Assistance Systems on page 9-60.

Lumbar Adjustment

Manual Lumbar

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

rearward by sliding the control forward or rearward.

. Raise or lower the front part of the seat cushion by moving the front of the control up or down.

. Raise or lower the seat by

moving the rear of the control up or down.

To adjust the seatback, see Reclining Seatbacks on page 3-5.

If equipped, move the lever up or down repeatedly to increase or decrease lumbar support.

To adjust the power lumbar support, if equipped: . Press and hold the control

forward to increase or rearward to decrease upper and lower lumbar support at the same time.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (5,1)

Seats and Restraints

3-5

Warning (Continued)

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. 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.

If equipped, press and hold the control up to increase upper lumbar support and decrease lower lumbar support. Press and hold the control down to increase lower lumbar support and decrease upper lumbar support.

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.

(Continued)

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

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (6,1)

3-6

Seats and Restraints

Tilt the top of the control forward to raise.

Memory Seats

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.

Power Reclining Seatbacks

Crew/Double Cab Shown, Other

Models Similar

If memory equipped, the SET, "1," "2," and B (Exit) buttons on the driver door are used to manually save and recall memory settings for the driver seat, outside mirrors, and adjustable pedals (if equipped).

To recline a power seatback, if equipped:

Tilt the top of the control rearward to recline.

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 Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/27/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (7,1)

Storing Memory Positions To save positions to the “1” and “2” buttons: 1. Adjust the driver seat, outside

mirrors, and adjustable pedals (if equipped) to the desired driving positions.

2. Press and release SET, then

immediately press and hold “1” until a beep sounds.

3. Repeat Steps 1 and 2 for a

second driver using “2.”

To save positions to the B (Exit) button and easy exit features: 1. Adjust the driver seat, adjustable

pedals (if equipped), and the outside mirrors on some vehicles to the desired positions for getting out of the vehicle.

2. Press and release SET, then

immediately press and hold B until a beep sounds.

Manually Recalling Memory Positions If the vehicle is off, or in ON/RUN/ START but not in P (Park), press and hold "1," "2," or B to manually recall the previously stored memory positions. Releasing "1,” "2," or B before the stored positions are reached stops the recall. If the vehicle is in ON/RUN/START and in P (Park), press and release “1,” “2,” or B to manually recall the previously stored memory positions. Placing the ignition in OFF/LOCK before the stored positions are reached stops the recall. If something has blocked the driver seat and/or 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.

Seats and Restraints

3-7

If the memory position is still not recalling, see your dealer for service.

Automatically Recalling Memory Positions (Auto Memory Recall) The Auto (Automatic) Memory Recall feature automatically recalls the current driver’s previously stored “1” or “2” position when entering the vehicle. If the Auto Memory Recall feature is enabled in the vehicle personalization menu, memory “1” or “2” positions are recalled in the following ways: . Press K on the RKE transmitter

and open the driver door.

. Press K on the RKE transmitter

when the driver door is already open.

See Vehicle Personalization on page 5-45.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (8,1)

3-8

Seats and Restraints

To stop recall movement, press one of the memory, power mirror or power seat controls; or press the adjustable pedal control (if equipped). If something has blocked the driver seat and/or the adjustable pedals (if equipped) 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 opening the driver door and pressing K on the RKE transmitter. If the memory position is still not recalling, see your dealer for service.

Easy Exit Recall If programmed on in the vehicle personalization menu, the easy exit feature automatically moves the driver seat, adjustable pedals (if equipped), and outside mirrors on some vehicles to the memory positions saved to the B (Exit)

button. See “Storing Memory Positions” listed previously. See also Vehicle Personalization on page 5-45. Easy exit recall automatically activates 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.

If something has blocked the driver seat and/or adjustable pedals (if equipped) while recalling the exit position, the recall may stop. Remove the obstruction; then press and hold the appropriate manual control for the exit feature not recalling for two seconds. Try recalling the exit position again. If the exit position is still not recalling, see your dealer for service.

Heated and Cooled 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.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (9,1)

Seats and Restraints

3-9

The heated or cooled seat indicator lights do not turn on during a remote start. The temperature performance of an unoccupied seat may be reduced. This is normal. The heated or cooled seats will not turn on during a remote start unless they are enabled in the vehicle personalization menu. See Remote Vehicle Start on page 2-6 and Vehicle Personalization on page 5-45.

The indicator light on the button comes on when this feature is on. 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 heated seats are on high, their level may automatically be lowered.

Remote Start Auto Heated and Cooled Seats During a remote start, the heated or cooled seats can be turned on automatically. When it is cold outside, the heated seats turn on, and when it is hot outside the cooled seats turn on. The heated or cooled seats are canceled when the ignition is turned on. Press the heated or cooled seat button to use the heated or cooled seats after the vehicle is started.

Heated and Cooled Seat Buttons

Shown, Heated Seat Buttons

Similar

If equipped, the buttons are on the center stack. To operate, the engine must be running. Press I to heat the driver or passenger seatback only. Press J to heat the driver or passenger seat cushion and seatback. Press A to cool the driver or passenger seat.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (10,1)

3-10

Seats and Restraints

Rear Seats

Rear Seats (Extended Cab Full Bench)

Folding the Rear Seat { Caution

Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety belts and return them to their normal stowed position before folding a rear seat.

To unfold the seat: 1. Push the seat cushion rearward

while pulling the release strap loop under the seat cushion. Pull the seat cushion down until it latches.

2. Pull up on the seat cushion to make sure it is locked in place. Make sure the safety belts are not twisted or caught in the seat cushion.

{ Warning

A safety 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 safety belts are properly routed and attached, and are not twisted.

To fold the seat: 1. Pull up on the front of the seat cushion while pulling down on the release strap loop under the seat cushion.

2. Pull the seat cushion up until it

latches with the seatback.

3. Pull forward on the seat cushion

to make sure it is locked in place.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (11,1)

Seats and Restraints

3-11

{ Warning

A safety 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 safety belts are properly routed and attached, and are not twisted.

Rear Seats (Split Bench)

Folding Rear Seat Either side of the rear seat can be folded for added cargo space.

{ Caution

Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety belts and return them to their normal stowed position before folding a rear seat.

Make sure that nothing is on the seat cushion.

To fold the seat, slowly pull the seat cushion up. To return the seat to the normal seating position, slowly pull the seat cushion down. Make sure the safety belts are not twisted or caught in the seat cushion.

GMC Sierra Owner Manual 5853626) - 2014 - 3rd crc - 8/15/13

(GMNA-Localizing-U.S./Canada/Mexico-

Black plate (12,1)

3-12

Seats and Restraints

Safety Belts This section of the manual describes how to use safety belts properly. It also describes some things not to do with safety belts.

{ Warning

Do not let anyone ride where a safety belt cannot be worn properly. In a crash, if you or your passenger(s) are not wearing safety belts, injuries can be much worse than if you are wearing safety 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