Login- Download PDF Manual
-
In addition to the standard theft-deterrent system features, this system may also have an, inclination sensor and intrusion sensor.
The inclination sensor can set off the alarm if it senses movement of the vehicle, such as a change in vehicle orientation. The intrusion sensor monitors the vehicle interior, and can activate the alarm if it senses unauthorized entry into the vehicle’s interior. Do not allow passengers or pets to remain in the vehicle when the intrusion sensor is activated. Before arming the theft-deterrent system and activating the intrusion sensor: . Make sure all doors and
windows are completely closed. . Secure any loose items such as
sunshades.
. Make sure there are no
obstructions blocking the sensors in the front overhead console.
. Close DVD screens, if equipped,
before leaving the vehicle.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Inclination and Intrusion Sensors Disable Switch
Immobilizer See Radio Frequency Statement 0 373.
Immobilizer Operation
It is recommended that the intrusion and inclination sensors be deactivated if pets are left in the vehicle or if the vehicle is being transported. With the vehicle turned off, press o in the front overhead console. The indicator light will come on momentarily, indicating that these sensors have been disabled for the next alarm system arming cycle.
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.
Keys, Doors, and Windows
37
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 0 285. 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. 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 0 25. To program additional transmitters, see Remote Keyless Entry (RKE) System Operation 0 28.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
38
Keys, Doors, and Windows
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.
Exterior Mirrors
Trailer-Tow 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.
If equipped, adjust trailer-tow mirrors for a clear view of the area 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 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.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Keys, Doors, and Windows
39
If equipped, the mirror housing may have auxiliary cargo and clearance lamps. See Cargo Lamp 0 152 and Exterior Lamp Controls 0 146.
Power Mirrors Using hood-mounted air deflectors and add-on convex mirror attachments could decrease mirror performance.
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.
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. The mirrors may include a memory function that works with the memory seats. See Memory Seats 0 51.
Base Power Mirrors
The power mirror controls are on the driver door. 1. Press (1) or (2) to select the
driver or passenger side mirror.
Crew/Double Cab Premium Shown, Other Models Similar 1. Press (1) or (2) to select the
driver or passenger side mirror. 2. Press one of the four arrows on
the control pad while the indicator light on button (1)
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
40
Keys, Doors, and Windows
Folding Mirrors
Crew/Double Cab Premium Shown, Other Models Similar
Power Folding If equipped with power folding mirrors: 1. Press (2) to fold the mirrors out
to the driving position.
2. Press (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 0 51.
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.
Manually fold both mirrors if they are out of sync. 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 Mirror Folding If equipped, with the ignition off, press and hold Q on the RKE transmitter for approximately one second to automatically fold the exterior mirrors. Press and hold K on the RKE transmitter for approximately one second to unfold. See Remote Keyless Entry (RKE) System Operation 0 28. This feature is turned on or off through vehicle personalization. See Vehicle Personalization 0 136. Turn Signal Indicator If equipped, indicator lights on the mirror flash in the direction of the turn or lane change.
Heated Mirrors If equipped with heated mirrors: 1 (Rear Window Defogger) : Press to heat the mirrors. If the vehicle has towing mirrors, only the upper glass of the mirror is heated. The lower convex part of the towing mirrors is not heated.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Driving with the Blind Spot Mirror
See “Rear Window Defogger” under Dual Automatic Climate Control System 0 157.
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.
Actual Mirror View
Keys, Doors, and Windows
41
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.
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
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
42
Keys, Doors, and Windows
zone. Then, glance over your shoulder to double check before moving slowly into the adjacent lane.
Reverse Tilt Mirrors If equipped with memory seats, the passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This allows the curb to be seen when parallel parking. The mirror(s) return to the original position when: . The vehicle is shifted out of R (Reverse), or remains in R (Reverse) for about 30 seconds.
. The ignition is turned off. . The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see Vehicle Personalization 0 136.
Interior Mirrors
Windows
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 0 377. Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water.
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.
{ 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
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Keys, Doors, and Windows
43
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 0 25.
Press the switch down to lower the window, and pull up the front of the switch to raise the window. Express-Down Windows The express-down feature allows the window to be lowered without holding the switch. Press the window switch 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 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. Programming the Power Windows If the battery on the vehicle has been recharged or disconnected, or is not working, the driver power
Crew/Double Cab Premium Trim
Shown, Other Models Similar
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) 0 189.
. Will stop operation when any
door is opened.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
44
Keys, Doors, and Windows
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
Window Lockout
{ 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.
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.
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.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Rear Windows
Sun Visors
Power Sliding Rear Window
Roof
Sunroof
Keys, Doors, and Windows
45
Pull the sun visor down to block glare. Detach the sun visor from the center mount to pivot to the side window or, if equipped, extend along the rod.
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) 0 189. . Press the switch to open the
window.
. Pull the switch to close the
window.
The power sliding rear window cannot be operated manually.
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) 0 189. 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
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
46
Keys, Doors, and Windows
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.
Seats and Restraints
47
Securing Child Restraints (Front
Passenger Seat) . . . . . . . . . . . . . 89
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 48
Front Seats
Power Seat Adjustment . . . . . . . . 49
Lumbar Adjustment . . . . . . . . . . . . 49
Reclining Seatbacks . . . . . . . . . . . 50
Memory Seats . . . . . . . . . . . . . . . . . 51
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 53
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . . . 54
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 56
Lap-Shoulder Belt . . . . . . . . . . . . . 56
Safety Belt Use DuringPregnancy . . . . . . . . . . . . . . . . . . . . 59
Safety Belt Extender . . . . . . . . . . . 60
Safety System Check . . . . . . . . . . 60
Safety Belt Care . . . . . . . . . . . . . . . 60
Replacing Safety Belt SystemParts after a Crash . . . . . . . . . . . 60
Airbag System
Airbag System . . . . . . . . . . . . . . . . . 61
Where Are the Airbags? . . . . . . . 63
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . 64
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 65
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 65
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . 66
Passenger Sensing System . . . 67
Servicing the Airbag-EquippedVehicle . . . . . . . . . . . . . . . . . . . . . . . 71
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 72
Airbag System Check . . . . . . . . . . 73
Replacing Airbag System Partsafter a Crash . . . . . . . . . . . . . . . . . 73
Child Restraints
Older Children . . . . . . . . . . . . . . . . . 73
Infants and Young Children . . . . 75
Child Restraint Systems . . . . . . . 77
Where to Put the Restraint . . . . . 79
Lower Anchors and Tethers forChildren (LATCH System) . . . . 80
Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . 86
Securing Child Restraints
(Rear Seat) . . . . . . . . . . . . . . . . . . . 87
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
48
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. The head restraints adjust forward and rearward. To adjust the head restraint forward, grasp the head restraint and pull forward to the desired locking position. To adjust
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
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 removable. 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) 0 80.
Front Seats
Power Seat Adjustment
Seats and Restraints
49
To adjust the recline, see Reclining Seatbacks 0 50. To adjust the lumbar support, see Lumbar Adjustment 0 49. 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 0 214.
Lumbar Adjustment
To adjust a power seat: . 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 power lumbar support:
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
50
Seats and Restraints
. Press and hold the control
forward to increase or rearward to decrease upper and lower lumbar support at the same time. . 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
To adjust the seatback:
. Tilt the top of the control
rearward to recline.
. Tilt the top of the control forward
to raise.
{ 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. 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 Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Memory Seats
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 store and recall memory settings for the driver seat, outside mirrors, and adjustable pedals (if equipped).
Storing Memory Positions To store positions to the 1 and 2
buttons: 1. The ignition must be in ON/ RUN or ACC/ACCESSORY.2. Adjust the driver seat, outside mirrors, and adjustable pedals (if equipped) to the desired driving positions.
3. Press and release SET. A beep
4.
will sound. Immediately press and hold 1
until two beeps sound.5. Repeat Steps 1–4 for a second
driver using 2.
To store positions to the B (Exit) button and easy exit features, repeat Steps 1–4 above to store your positions for getting out of the vehicle.
Manually Recalling Memory Positions Press and hold 1, 2, or B (Exit) to manually recall the previously stored memory positions. Releasing 1, 2, or B (EXIT) before the stored positions are reached stops the recall.
Seats and Restraints
51
Automatically Recalling Memory Positions (Auto Recall) If programmed on in the vehicle personalization menu, the Auto (Automatic) Memory Recall feature automatically recalls the current driver’s previously stored 1 or 2
position when the ignition is changed from OFF to ON/RUN or ACC/ACCESSORY. See “Auto Memory Recall” under “Comfort and Convenience” in Vehicle Personalization 0 136. To stop recall movement, press one of the memory, power mirror or power seat controls; or press the adjustable pedal control (if equipped). RKE Transmitters are not labeled with a number. If your memory seat position is stored to 1 or 2 but this position is not automatically recalling, then store your positions to the other button or switch RKE transmitters with the other driver.GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
52
Seats and Restraints
Easy Exit Recall If programmed on in the vehicle personalization menu, the easy exit feature automatically recalls the previously stored B (Exit) position. See “Storing Memory Positions” listed previously. See also Vehicle Personalization 0 136. 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.
Obstructions If something has blocked the driver seat and/or adjustable pedals while recalling a memory position, the recall may stop. Remove the obstruction. Then do one of the following: . For manual or automatic recall
positions, press and hold the appropriate manual control for
two seconds. Try recalling again by pressing the appropriate memory button.
. For exit recall position, press
and hold the appropriate manual control for the exit feature not recalling for two seconds. Then try recalling the exit position again.
If the memory position is still not recalling, see your dealer for service.
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
(Continued)
Warning (Continued)
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 Ventilated Seat Buttons Shown, Heated Seat
Buttons Similar
If equipped, the buttons are on the center stack. To operate, the engine must be running.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
or ventilated seats are canceled when the ignition is turned on. Press the heated or ventilated seat button to use the heated or ventilated seats after the vehicle is started. The heated or ventilated 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 ventilated seats will not turn on during a remote start unless they are enabled in the vehicle personalization menu. See Remote Vehicle Start 0 30 and Vehicle Personalization 0 136.
Seats and Restraints
53
Rear Seats
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.
Press I to heat the driver or passenger seatback only. Press J to heat the driver or passenger seat cushion and seatback. Press C to ventilate the driver or passenger seat. 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 for an extended time, their level may automatically be lowered.
Remote Start Auto Heated and Ventilated Seats During a remote start, the heated or ventilated seats can be turned on automatically. When it is cold outside, the heated seats turn on, and when it is hot outside the ventilated seats turn on. The heated
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
54
Seats and Restraints
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.
{ 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.
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 are more likely to be seriously injured or killed. Do not allow
(Continued)
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Warning (Continued)
passengers to ride in any area of the vehicle that is not equipped with seats and safety belts. Always wear a safety belt, and check that all passenger(s) are restrained properly too.
This vehicle has indicators as a reminder to buckle the safety belts. See Safety Belt Reminders 0 112. This vehicle may have the Safety Belt Assurance System, which may prevent the vehicle from shifting out of P (Park). See Safety Belt Messages 0 132.
Seats and Restraints
55
Questions and Answers About Safety Belts Q: Will I be trapped in the vehicle after a crash if I am wearing a safety belt?
A: You could be — whether you are
wearing a safety belt or not. Your chance of being conscious during and after a crash, so you can unbuckle and get out, is much greater if you are belted.
Q: If my vehicle has airbags, why
should I have to wear safety belts?
A: Airbags are supplemental
systems only; so they work with safety belts — not instead of them. Whether or not an airbag is provided, all occupants still have to buckle up to get the most protection. Also, in nearly all states and in all Canadian provinces, the law requires wearing safety belts.
Why Safety Belts Work
When riding in a vehicle, you travel as fast as the vehicle does. If the vehicle stops suddenly, you keep going until something stops you. It could be the windshield, the instrument panel, or the safety belts! When you wear a safety belt, you and the vehicle slow down together. There is more time to stop because you stop over a longer distance and, when worn properly, your strongest bones take the forces from the safety belts. That is why wearing safety belts makes such good sense.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
56
Seats and Restraints
How to Wear Safety Belts Properly This section is only for people of adult size. There are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a child will be riding in the vehicle, see Older Children 0 73 or Infants and Young Children 0 75. Follow those rules for everyone's protection. It is very important for all occupants to buckle up. Statistics show that unbelted people are hurt more often in crashes than those who are wearing safety belts. There are important things to know about wearing a safety belt properly.
. Wear the shoulder belt over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The shoulder belt locks if there is a sudden stop or crash.
{ Warning
You can be seriously injured, or even killed, by not wearing your safety belt properly.
. Never allow the lap or
shoulder belt to become loose or twisted.
. Never wear the shoulder belt under both arms or behind your back.
. Never route the lap or shoulder belt over an armrest.
Lap-Shoulder Belt All seating positions in the vehicle have a lap-shoulder belt.
. Sit up straight and always keep
your feet on the floor in front of you.
. Always use the correct buckle
for your seating position.
. Wear the lap part of the belt low
and snug on the hips, just touching the thighs. In a crash, this applies force to the strong pelvic bones and you would be less likely to slide under the lap belt. If you slid under it, the belt would apply force on your abdomen. This could cause serious or even fatal injuries.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Seats and Restraints
57
The following instructions explain how to wear a lap-shoulder belt properly. 1. Adjust the seat, if the seat is adjustable, so you can sit up straight. To see how, see “Seats” in the Index.
If the shoulder portion of a passenger belt is pulled out all the way, the child restraint locking feature may be engaged. If this happens, let the belt go back all the way and start again. Engaging the child restraint locking feature may affect the passenger sensing system, if equipped. See Passenger Sensing System 0 67 for more information.
2. Pick up the latch plate and pull the belt across you. Do not let it get twisted. The lap-shoulder belt may lock if you pull the belt across you very quickly. If this happens, let the belt go back slightly to unlock it. Then pull the belt across you more slowly.
If the webbing locks in the latch plate before it reaches the buckle, tilt the latch plate flat to unlock.
3. Push the latch plate into the
buckle until it clicks. Pull up on the latch plate to make sure it is secure. If the belt is not long enough, see Safety Belt Extender 0 60. Position the release button on the buckle so that the safety belt could be quickly unbuckled if necessary. If equipped with a shoulder belt height adjuster, move it to the height that is right for you. See “Shoulder Belt Height Adjuster” later in this section.
4.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
58
Seats and Restraints
5. To make the lap part tight, pull
up on the shoulder belt.
To unlatch the belt, push the button on the buckle. The belt should return to its stowed position. Always stow the safety belt slowly. If the safety belt webbing returns quickly to the stowed position, the retractor may lock and cannot be pulled out. If this happens, pull the safety belt straight out firmly to unlock the webbing, and then release it. If the webbing is still locked in the retractor, see your dealer. Before a door is closed, be sure the safety belt is out of the way. If a door is slammed against a safety belt, damage can occur to both the safety belt and the vehicle. Shoulder Belt Height Adjuster The vehicle has a shoulder belt height adjuster for the driver and front outboard passenger. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling off of it. The belt should be close to, but not contacting, the neck. Improper shoulder belt height adjustment
could reduce the effectiveness of the safety belt in a crash. See How to Wear Safety Belts Properly 0 56.
Push down on the release button to move the height adjuster to the desired position. Move the adjuster up by pushing up on the shoulder belt guide. After the adjuster is set to the desired position, try to move it down without pushing the release button to make sure it has locked into position.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Seats and Restraints
59
Safety Belt Pretensioners This vehicle has safety belt pretensioners for front outboard occupants. Although the safety belt pretensioners cannot be seen, they are part of the safety belt assembly. They can help tighten the safety belts during the early stages of a moderate to severe frontal, near frontal, or rear crash if the threshold conditions for pretensioner activation are met. And, if the vehicle has side impact airbags, safety belt pretensioners can help tighten the safety belts in a side crash. If the vehicle has rollover capable roof-rail airbags, safety belt pretensioners can help tighten the safety belts in a rollover event. Pretensioners work only once. If the pretensioners activate in a crash, they will need to be replaced, and the vehicle’s safety belt system will probably need other new parts. See Replacing Safety Belt System Parts after a Crash 0 60.
Rear Safety Belt Comfort Guides Rear safety belt comfort guides may provide added safety belt comfort for older children who have outgrown booster seats and for some adults. When installed on a shoulder belt, the comfort guide positions the belt away from the neck and head. Comfort guides are available through your dealer for the rear outboard seating positions. Instructions are included with the guide.
Safety Belt Use During Pregnancy Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear safety belts.
A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout the pregnancy. The best way to protect the fetus is to protect the mother. When a safety belt is worn properly, it is more likely that the fetus will not be hurt in a crash. For pregnant women, as for anyone, the key to making safety belts effective is wearing them properly.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
60
Seats and Restraints
Safety Belt Extender If the vehicle's safety belt will fasten around you, you should use it. But if a safety belt is not long enough, your dealer will order you an extender. When you go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you. To help avoid personal injury, do not let someone else use it, and use it only for the seat it is made to fit. The extender has been designed for adults. Never use it for securing child seats. To wear it, attach it to the regular safety belt. For more information, see the instruction sheet that comes with the extender.
Safety System Check Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damaged safety belt system parts that might keep a safety belt system from doing its job. See your dealer to have it repaired. Torn or frayed
safety belts may not protect you in a crash. They can rip apart under impact forces. If a belt is torn or frayed, get a new one right away. Make sure the safety belt reminder light is working. See Safety Belt Reminders 0 112. Keep safety belts clean and dry. See Safety Belt Care 0 60.
Safety Belt Care Keep belts clean and dry. { Warning
Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water.
Replacing Safety Belt System Parts after a Crash
{ Warning
A crash can damage the safety belt system in the vehicle. A damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the safety belt systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible.
After a minor crash, replacement of safety belts may not be necessary. But the safety belt assemblies that were used during any crash may have been stressed or damaged. See your dealer to have the safety belt assemblies inspected or replaced.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
New parts and repairs may be necessary even if the safety belt system was not being used at the time of the crash. Have the safety belt pretensioners checked if the vehicle has been in a crash, or if the airbag readiness light stays on after you start the vehicle or while you are driving. See Airbag Readiness Light 0 113.
Airbag System The vehicle has the following airbags: . A frontal airbag for the driver. . A frontal airbag for the front
outboard passenger.
The vehicle may have the following airbags: . A seat-mounted side impact
airbag for the driver.
. A seat-mounted side impact airbag for the front outboard passenger.
. A roof-rail airbag for the driver
and the passenger seated directly behind the driver.
. A roof-rail airbag for the front outboard passenger and the person seated directly behind the front outboard passenger.
All of the airbags in the vehicle will have the word AIRBAG on the trim or on a label near the deployment opening.
Seats and Restraints
61
For frontal airbags, the word AIRBAG is on the center of the steering wheel for the driver and on the instrument panel for the front outboard passenger. For seat-mounted side impact airbags, the word AIRBAG is on the seatback closest to the door. For roof-rail airbags, the word AIRBAG is on the ceiling or trim. Airbags are designed to supplement the protection provided by safety belts. Even though today's airbags are also designed to help reduce the risk of injury from the force of an inflating bag, all airbags must inflate very quickly to do their job. Here are the most important things to know about the airbag system:
{ Warning
You can be severely injured or killed in a crash if you are not wearing your safety belt, even with airbags. Airbags are designed to work with safety
(Continued)
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
62
Seats and Restraints
Warning (Continued)
Warning (Continued)
sit unnecessarily close to any airbag, as you would be if sitting on the edge of the seat or leaning forward. Safety belts help keep you in position before and during a crash. Always wear a safety belt, even with airbags. The driver should sit as far back as possible while still maintaining control of the vehicle. The safety belts and the front outboard passenger airbags are most effective when you are sitting well back and upright in the seat with both feet on the floor. Occupants should not lean on or sleep against the door or side windows in seating positions with seat-mounted side impact airbags and/or roof-rail airbags.
belts, not replace them. Also, airbags are not designed to inflate in every crash. In some crashes safety belts are the only restraint. See When Should an Airbag Inflate? 0 64. Wearing your safety belt during a crash helps reduce the chance of hitting things inside the vehicle or being ejected from it. Airbags are “supplemental restraints” to the safety belts. Everyone in the vehicle should wear a safety belt properly, whether or not there is an airbag for that person.
{ Warning
Because airbags inflate with great force and faster than the blink of an eye, anyone who is up against, or very close to any airbag when it inflates can be seriously injured or killed. Do not
(Continued)
{ Warning
Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Always secure children properly in the vehicle. To read how, see Older Children 0 73 or Infants and Young Children 0 75.
There is an airbag readiness light on the instrument cluster, which shows the airbag symbol. The system checks the airbag electrical system for malfunctions. The light tells you if there is an electrical problem. See Airbag Readiness Light 0 113 for more information.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
Where Are the Airbags?
The front outboard passenger frontal airbag is in the passenger side instrument panel.
Seats and Restraints
63
The driver frontal airbag is in the center of the steering wheel.
Driver Side Shown, Passenger
Side Similar
The seat-mounted side impact airbags for the driver and front outboard passenger are in the side of the seatbacks closest to the door.
Driver Side Shown, Passenger
Side Similar
The roof-rail airbags for the driver, front outboard passenger, and second row outboard passengers are in the ceiling above the side windows.
{ Warning
If something is between an occupant and an airbag, the airbag might not inflate properly or it might force the object into that person causing severe injury or even death. The path of an
(Continued)
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
64
Seats and Restraints
Warning (Continued)
inflating airbag must be kept clear. Do not put anything between an occupant and an airbag, and do not attach or put anything on the steering wheel hub or on or near any other airbag covering. Do not use seat accessories that block the inflation path of a seat-mounted side impact airbag. Never secure anything to the roof of a vehicle with roof-rail airbags by routing a rope or tie‐down through any door or window opening. If you do, the path of an inflating roof-rail airbag will be blocked.
When Should an Airbag Inflate? This vehicle is equipped with airbags. See Airbag System 0 61. Airbags are designed to inflate if the impact exceeds the specific airbag system's deployment threshold.
Deployment thresholds are used to predict how severe a crash is likely to be in time for the airbags to inflate and help restrain the occupants. The vehicle has electronic sensors which help the airbag system determine the severity of the impact. Deployment thresholds can vary with specific vehicle design. Frontal airbags are designed to inflate in moderate to severe frontal or near frontal crashes to help reduce the potential for severe injuries, mainly to the driver's or front outboard passenger's head and chest. Whether the frontal airbags will or should inflate is not based primarily on how fast the vehicle is traveling. It depends on what is hit, the direction of the impact, and how quickly the vehicle slows down. Frontal airbags may inflate at different crash speeds depending on whether the vehicle hits an object straight on or at an angle, and
whether the object is fixed or moving, rigid or deformable, narrow or wide. Frontal airbags are not intended to inflate during vehicle rollovers, in rear impacts, or in many side impacts. In addition, if the GVWR (Gross Vehicle Weight Rating) is at or below 3 855 kg (8,500 lb), the vehicle has advanced technology frontal airbags. You can find the GVWR on the Certification/Tire label on the center pillar of the vehicle. See Vehicle Load Limits 0 176 for more information. Advanced technology frontal airbags adjust the restraint according to crash severity. Vehicles with advanced technology frontal airbags have a seat position sensor that enables the sensing system to monitor the position of the driver seat. The seat position sensor provides information that is used to adjust the deployment of the driver frontal airbag.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
If the GVWR is at or below 4 536 kg (10,000 lb), the vehicle has seat-mounted side impact airbags. Vehicles with a GVWR above 4 536 kg (10,000 lb) may or may not have seat-mounted side impact airbags. Seat-mounted side impact airbags, if equipped, are designed to inflate in moderate to severe side crashes depending on the location of the impact. Seat-mounted side impact airbags are not designed to inflate in frontal impacts, near frontal impacts, rollovers, or rear impacts. A seat-mounted side impact airbag is designed to inflate on the side of the vehicle that is struck. Vehicles with a GVWR up to and including 4 536 kg (10,000 lb) have roof-rail airbags. These roof-rail airbags are designed to inflate in moderate to severe side crashes depending on the location of the impact. In addition, these roof-rail airbags are designed to inflate during a rollover or in a severe frontal impact. The roof-rail airbags are not designed to inflate in rear impacts. Both roof-rail airbags will inflate when either side of the
vehicle is struck or if the sensing system predicts that the vehicle is about to roll over on its side, or in a severe frontal impact. Vehicles with a GVWR above 4 536 kg (10,000 lb) may or may not be equipped with roof-rail airbags. These roof-rail airbags, if equipped, are designed to inflate in moderate to severe side crashes depending on the location of the impact. Both roof-rail airbags will inflate when either side of the vehicle is struck. In addition, these roof-rail airbags are designed to inflate in a severe frontal impact. If the vehicle has single rear wheels, the roof-rail airbags are rollover capable. If the vehicle has dual rear wheels and has roof-rail airbags, the roof-rail airbags are not rollover capable. If the airbags are rollover capable, both roof-rail airbags will also inflate if the sensing system predicts that the vehicle is about to roll over on its side. The roof-rail airbags are not designed to inflate in rear impacts.
Seats and Restraints
65
In any particular crash, no one can say whether an airbag should have inflated simply because of the vehicle damage or repair costs.
What Makes an Airbag Inflate? In a deployment event, the sensing system sends an electrical signal triggering a release of gas from the inflator. Gas from the inflator fills the airbag causing the bag to break out of the cover. The inflator, the airbag, and related hardware are all part of the airbag module. For airbag locations, see Where Are the Airbags? 0 63.
How Does an Airbag Restrain? In moderate to severe frontal or near frontal collisions, even belted occupants can contact the steering wheel or the instrument panel. In moderate to severe side collisions, even belted occupants can contact the inside of the vehicle.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
66
Seats and Restraints
Airbags supplement the protection provided by safety belts by distributing the force of the impact more evenly over the occupant's body. Rollover capable roof-rail airbags are designed to help contain the head and chest of occupants in the outboard seating positions in the first and second rows. The rollover capable roof-rail airbags are designed to help reduce the risk of full or partial ejection in rollover events, although no system can prevent all such ejections. But airbags would not help in many types of collisions, primarily because the occupant's motion is not toward those airbags. See When Should an Airbag Inflate? 0 64. Airbags should never be regarded as anything more than a supplement to safety belts.
What Will You See after an Airbag Inflates? After the frontal airbags and seat-mounted side impact airbags inflate, they quickly deflate, so quickly that some people may not even realize an airbag inflated. Roof-rail airbags may still be at least partially inflated for some time after they inflate. Some components of the airbag module may be hot for several minutes. For location of the airbags, see Where Are the Airbags? 0 63. The parts of the airbag that come into contact with you may be warm, but not too hot to touch. There may be some smoke and dust coming from the vents in the deflated airbags. Airbag inflation does not prevent the driver from seeing out of the windshield or being able to steer the vehicle, nor does it prevent people from leaving the vehicle.
{ Warning
When an airbag inflates, there may be dust in the air. This dust could cause breathing problems for people with a history of asthma or other breathing trouble. To avoid this, everyone in the vehicle should get out as soon as it is safe to do so. If you have breathing problems but cannot get out of the vehicle after an airbag inflates, then get fresh air by opening a window or a door. If you experience breathing problems following an airbag deployment, you should seek medical attention.
The vehicle has a feature that may automatically unlock the doors, turn on the interior lamps and hazard warning flashers, and shut off the fuel system after the airbags inflate. The feature may also activate, without airbag inflation, after an event that exceeds a predetermined threshold. You can lock the doors, and turn off the interior lamps, and
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
turn off the hazard warning flashers by using the controls for those features.
{ Warning
A crash severe enough to inflate the airbags may have also damaged important functions in the vehicle, such as the fuel system, brake and steering systems, etc. Even if the vehicle appears to be drivable after a moderate crash, there may be concealed damage that could make it difficult to safely operate the vehicle. Use caution if you should attempt to restart the engine after a crash has occurred.
In many crashes severe enough to inflate the airbag, windshields are broken by vehicle deformation. Additional windshield breakage may also occur from the front outboard passenger airbag.
. Airbags are designed to inflate
only once. After an airbag inflates, you will need some new parts for the airbag system. If you do not get them, the airbag system will not be there to help protect you in another crash. A new system will include airbag modules and possibly other parts. The service manual for the vehicle covers the need to replace other parts.
. The vehicle has a crash sensing
and diagnostic module which records information after a crash. See Vehicle Data Recording and Privacy 0 374
and Event Data Recorders 0 375.. Let only qualified technicians work on the airbag systems. Improper service can mean that an airbag system will not work properly. See your dealer for service.
Seats and Restraints
67
Passenger Sensing System The vehicle may have a passenger sensing system for the front outboard passenger position. The passenger airbag status indicator will light on the overhead console when the vehicle is started.
United States
Canada and Mexico
The words ON and OFF, or the symbol for on and off, will be visible during the system check. When the system check is complete, either the word ON or OFF, or the symbol for
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
68
Seats and Restraints
on or off, will be visible. See Passenger Airbag Status Indicator 0 113. The passenger sensing system turns off the front outboard passenger frontal airbag under certain conditions. No other airbag is affected by the passenger sensing system. The passenger sensing system works with sensors that are part of the front outboard passenger seat and safety belt. The sensors are designed to detect the presence of a properly seated occupant and determine if the front outboard passenger frontal airbag should be allowed to inflate or not. According to accident statistics, children are safer when properly secured in a rear seat in the correct child restraint for their weight and size. Whenever possible, children age 12 and under should be secured in a rear seating position.
Never put a rear-facing child seat in the front. This is because the risk to the rear-facing child is so great, if the airbag deploys.
{ Warning
A child in a rear-facing child restraint can be seriously injured or killed if the passenger frontal airbag inflates. This is because the back of the rear-facing child restraint would be very close to the inflating airbag. A child in a forward-facing child restraint can be seriously injured or killed if the passenger frontal airbag inflates and the passenger seat is in a forward position. Even if the passenger sensing system has turned off the passenger frontal airbag, no system is fail-safe. No one can guarantee that an airbag will not inflate under some unusual circumstance, even though the airbag is off.
(Continued)
Warning (Continued)
Secure rear-facing child restraints in a rear seat, even if the airbag is off. If you secure a forward-facing child restraint in the front outboard passenger seat, always move the seat as far back as it will go. It is better to secure the child restraint in a rear seat.
The passenger sensing system is designed to turn off the front outboard passenger frontal airbag if: . The front outboard passenger
seat is unoccupied.
. The system determines an infant
is present in a child restraint.
. A front outboard passenger
takes his/her weight off of the seat for a period of time.
. There is a critical problem with
the airbag system or the passenger sensing system.
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
When the passenger sensing system has turned off the front outboard passenger frontal airbag, the off indicator will light and stay lit as a reminder that the airbag is off. See Passenger Airbag Status Indicator 0 113. The passenger sensing system is designed to turn on the front outboard passenger frontal airbag anytime the system senses that a person of adult size is sitting properly in the front outboard passenger seat. When the passenger sensing system has allowed the airbag to be enabled, the on indicator will light and stay lit as a reminder that the airbag is active. For some children, including children in child restraints, and for very small adults, the passenger sensing system may or may not turn off the front outboard passenger frontal airbag, depending upon the person's seating posture and body build. Everyone in the vehicle who has outgrown child restraints should
wear a safety belt properly — whether or not there is an airbag for that person. { Warning
If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light 0 113 for more information, including important safety information.
If the On Indicator Is Lit for a Child Restraint The passenger sensing system is designed to turn off the front outboard passenger frontal airbag if the system determines that an infant is present in a child restraint. If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off.
5.
Seats and Restraints
69
2. Remove the child restraint from
the vehicle.
3. Remove any additional items
from the seat such as blankets, cushions, seat covers, seat heaters, or seat massagers.
4. Reinstall the child restraint
following the directions provided by the child restraint manufacturer and refer to Securing Child Restraints (Rear Seat) 0 87 or Securing Child Restraints (Front Passenger Seat) 0 89. Make sure the safety belt retractor is locked by pulling the shoulder belt all the way out of the retractor when installing the child restraint, even if the child restraint is equipped with a safety belt lock-off. When the retractor lock is set, the belt can be tightened but not pulled out of the retractor. If, after reinstalling the child restraint and restarting the vehicle, the on indicator is still lit, turn the vehicle off. Then
GMC Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 9234761) - 2016 - crc - 7/24/15
70
Seats and Restraints
slightly recline the vehicle seatback and adjust the seat cushion, if adjustable, to make sure that the vehicle seatback is not pushing the child restraint into the seat cushion. Also make sure the child restraint is not trapped under the vehicle head restraint. If this happens, adjust the head restraint. See Head Restraints 0 48.
6. Restart the vehicle. The passenger sensing system may
