2015 GMC SIERRA 1500 driver seat adjustment

Black plate (1,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-5
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . 1-7
Memory Features . . . . . . . . . . . . 1-10
Heated and Cooled Front Seats . . . . . . . . . . . . . . . . . . . . . . . 1-10
Head Restraint Adjustment . . . . . . . . . . . . . . . . . 1-10
Safety Belts . . . . . . . . . . . . . . . . . . 1-11
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 1-11 Mirror Adjustment . . . . . . . . . . . . 1-11
Steering Wheel
Adjustment . . . . . . . . . . . . . . . . . 1-13
Throttle and Brake Pedal Adjustment . . . . . . . . . . . . . . . . . 1-14
Interior Lighting . . . . . . . . . . . . . . 1-14
Exterior Lighting . . . . . . . . . . . . . 1-15
Windshield Wiper/Washer . . . . 1-16
Climate Controls . . . . . . . . . . . . . 1-17
Transmission . . . . . . . . . . . . . . . . 1-19
Four-Wheel Drive . . . . . . . . . . . . 1-20
Vehicle Features
Infotainment System . . . . . . . . . 1-21
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-21
Satellite Radio . . . . . . . . . . . . . . . 1-22
Portable Audio Devices . . . . . . 1-22
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-23
Steering Wheel Controls . . . . . 1-23
Cruise Control . . . . . . . . . . . . . . . 1-24
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-24 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . 1-25
Lane Departure Warning (LDW) . . . . . . . . . . . . . 1-25
Rear Vision
Camera (RVC) . . . . . . . . . . . . . 1-25
Parking Assist . . . . . . . . . . . . . . . 1-25
Power Outlets . . . . . . . . . . . . . . . 1-26
Universal Remote System . . . 1-26
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-26
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . 1-27
Tire Pressure Monitor . . . . . . . . 1-28
Engine Oil Life System . . . . . . 1-28
E85 or FlexFuel . . . . . . . . . . . . . . 1-29
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-29
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-29
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-30

Black plate (3,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
In Brief 1-3
1.Instrument Panel Illumination
Control on page 6-6.
2. Integrated Trailer Brake Control (ITBC) System (If Equipped).
See Towing Equipment on
page 9-87.
3. Exterior Lamp Controls on
page 6-1.
Fog Lamps on page 6-5 (If
Equipped).
4. Air Vents on page 8-8.
5. Turn Signal Lever. See Turn and
Lane-Change Signals on
page 6-4.
Windshield Wiper/Washer on
page 5-4.
6. Favorite Switches (Out of View). See Steering Wheel Controls on
page 5-3.
Volume Switches (Out of View).
See Steering Wheel Controls on
page 5-3.
7. Instrument Cluster on page 5-10. 8.
Hazard Warning Flashers on
page 6-4.
9. Shift Lever. See Automatic
Transmission on page 9-33.
Tow/Haul Selector Button (If
Equipped). See Tow/Haul Mode
on page 9-37.
Range Selection Mode (Allison
Transmission
®and Hydra-Matic®
6-Speed Button) (If Equipped).
See Manual Mode on page 9-36.
10. Light Sensor. See Automatic
Headlamp System on
page 6-3.
11. Infotainment on page 7-1.
12. Electronic Transfer Case Control (If Equipped). See
Four-Wheel Drive on
page 9-38.
Card Holder (If Equipped). See
Instrument Panel Storage on
page 4-1.
13. Parking Brake on page 9-48. 14. Data Link Connector (DLC)
(Out of View). See Malfunction
Indicator Lamp on page 5-22.
15. Cruise Control on page 9-53.
Forward Collision Alert (FCA)
System on page 9-59 (If
Equipped).
16. Steering Wheel Adjustment on
page 5-2 (Out of View).
17. Horn on page 5-4.
18. Hood Release. See Hood on
page 10-4.
19. Steering Wheel Controls on
page 5-3 (If Equipped).
Driver Information Center (DIC)
Controls (If Equipped). See
Driver Information Center (DIC)
(Base Level) on page 5-30 or
Driver Information Center (DIC)
(Uplevel) on page 5-32.
20. Heated and Cooled Front
Seats on page 3-8 (If
Equipped).

Black plate (7,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
In Brief 1-7
Press the switch to lower the
window. Pull the switch up to raise
it. SeeWindows on page 2-18 and
Power Windows on page 2-18.
Express Windows
If equipped, the express window
feature allows the windows to be
raised or lowered without holding
the switch.
To use express-down, press the
switch down fully and release.
The driver window may have the
express-up feature. Pull the switch
up fully and release to activate.
Power Sliding Rear Window
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 9-28.
.Press the switch to open the
window.
.Pull down on the switch to close
the window. The power sliding rear window
cannot be operated manually. See
“Power Sliding Rear Window”
in
Rear Windows on page 2-21.
Seat Adjustment
Manual Seats
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.

Black plate (10,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
1-10 In Brief
Memory Features
Crew/Double Cab Shown, OtherModels Similar
If 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).
See Memory Seats on page 3-6 and
Vehicle Personalization on
page 5-45.
Heated and Cooled Front
Seats
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
Ito heat the driver or
passenger seatback only.
Press
Jto heat the driver or
passenger seat cushion and
seatback. Press
Ato cool the driver or
passenger seat.
See Heated and Cooled Front Seats
on page 3-8.
Head Restraint
Adjustment
Do not drive until the head restraints
for all occupants are installed and
adjusted properly.
To achieve a comfortable seating
position, change the seatback
recline angle as little as necessary
while keeping the seat and the head
restraint height in the proper
position.
See Head Restraints on page 3-2
and Seat Adjustment on page 3-3.

Black plate (3,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Seats and Restraints 3-3
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 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” underLower
Anchors and Tethers for Children
(LATCH System) on page 3-45.
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.
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.

Black plate (4,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
3-4 Seats and Restraints
Power Seat Adjustment
To adjust a power seat, if equipped:
.Move the seat forward or
rearward by sliding the control
forward or rearward.
.If equipped, raise or lower the
front part of the seat cushion by
moving the front of the control
up or down.
.If equipped, 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.
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 9-56.
Lumbar Adjustment
Manual Lumbar
If equipped, move the lever up or
down repeatedly to increase or
decrease lumbar support.
Power Lumbar
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.

Black plate (16,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
3-16 Seats and Restraints
To unlatch the belt, push the button
on the buckle. The belt should
return to its stowed position.
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 on
page 3-13.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.
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 your
vehicle has side impact airbags,
safety belt pretensioners can help
tighten the safety belts in a side
crash. If the vehicle has rollover
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