GMC SIERRA 2015 User Guide

Black plate (4,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
1-4 In Brief
22.gTraction Control/Electronic
Stability Control on page 9-49.
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal on
page 9-23.
{Cargo Lamp on page 6-6.
XParking Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
on page 9-56.
@Lane Departure Warning
(LDW) on page 9-61 (If
Equipped).
5Hill Descent Control Switch
(If Equipped). See Hill Descent
Control (HDC) on page 9-51.
qExhaust Brake (If
Equipped). See “Exhaust
Brake” in the Duramax diesel
supplement. Auxiliary Button (If Equipped).
See
Add-On Electrical
Equipment on page 9-88.
23. USB Port. See Infotainment on
page 7-1.
24. Power Outlets on page 5-5.
25. Power Outlet (Alternating Current) (If Equipped). See
Power Outlets on page 5-5.
Initial Drive
Information
Remote Keyless Entry
(RKE) System
The RKE transmitter functions may
work from up to 60 m (197 ft) away
from the vehicle.
K:Press to unlock the driver door.
Press
Kagain within three seconds
to unlock all remaining doors.

Black plate (5,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
In Brief 1-5
Q:Press to lock all doors. Lock
and unlock feedback can be
personalized. See Vehicle
Personalization on page 5-42.
7: Press and release one time to
initiate vehicle locator. Press
7and
hold for at least three seconds to
sound the panic alarm. Press
7
again to cancel the panic alarm.
See Keys on page 2-1 andRemote
Keyless Entry (RKE) System
Operation on page 2-4.
Remote Vehicle Start
If equipped, the engine can be
started from outside of the vehicle.
Starting the Vehicle
1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately, press and hold
/
for at least four seconds or until
the turn signal lamps flash. When the vehicle starts, the parking
lamps will turn on and remain on as
long as the engine is running. The
doors will be locked and the climate
control system may come on.
The engine will continue to run for
10 minutes. Repeat the steps for a
10-minute time extension. Remote
start can be extended only once.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then off.
See Remote Vehicle Start on
page 2-7.
Door Locks
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.
From inside, pull the door handle
once to unlock the door. Pull again
to open the door.

Black plate (6,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
1-6 In Brief
Power Door Locks
Crew/Double Cab Premium TrimShown, Other Models Similar
Q: Press to lock the doors.
K: Press to unlock the doors.
See Door Locks on page 2-8 and
Power Door Locks on page 2-9.
Windows
Power Windows
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 work when the ignition is in
ON/RUN or ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) on
page 9-29. Press the switch to lower the
window. Pull the switch up to raise
it. See
Windows on page 2-19 and
Power Windows on page 2-19.
Express Windows
The express window feature allows
the windows to be raised and
lowered without holding the switch.
To activate express-down, press the
switch down fully and release.
The driver window has an
express-up feature. Pull the switch
up fully and release to activate.

Black plate (7,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
In Brief 1-7
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.
SeeRetained Accessory Power
(RAP) on page 9-29.
.Press the switch to open the
window.
.Pull the switch down to close the
window.
The power sliding rear window
cannot be operated manually.
Seat Adjustment
Power Seats
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. See
Power Seat Adjustment on
page 3-3.
Lumbar Adjustment
To adjust the power lumbar support:
.Press and hold the control
forward to increase or rearward
to decrease upper and lower
lumbar support at the same time.

Black plate (8,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
1-8 In Brief
.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.
See Lumbar Adjustment on
page 3-3.
Reclining Seatbacks
To adjust the seatback:
.Tilt the top of the control
rearward to recline.
.Tilt the top of the control forward
to raise.
See Reclining Seatbacks on
page 3-4.
Memory Features
The SET, "1," "2," andB(Exit)
buttons on the driver door are used
to manually save and recall memory
settings for the driver seat, outside
mirrors, and adjustable pedals.
See Memory Seats on page 3-5 and
Vehicle Personalization on
page 5-42.
Heated and Cooled Front
Seats
The buttons are on the center stack.
To operate, the engine must be
running.

Black plate (9,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
In Brief 1-9
PressIto 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 3-7.
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 Power Seat Adjustment on
page 3-3.
Safety Belts
Refer to the following sections for
important information on how to use
safety belts properly.
.Safety Belts on page 3-10.
.How to Wear Safety Belts
Properly on page 3-11.
.Lap-Shoulder Belt on page 3-12.
.Lower Anchors and Tethers for
Children (LATCH System) on
page 3-38.
Passenger Sensing
System
United States
Canada and Mexico
The passenger sensing system (if
equipped) turns off the front
outboard passenger frontal airbag
under certain conditions. No other
airbag is affected by the passenger
sensing system. See Passenger
Sensing System on page 3-24.

Black plate (10,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
1-10 In Brief
The passenger airbag status
indicator lights on the on the
overhead console are visible when
the vehicle is started. See
Passenger Airbag Status Indicator
on page 5-17.
Mirror Adjustment
Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.
Exterior Mirrors
Power Mirrors
Base Power Mirrors
1. Press (1) or (2) to select the driver side or passenger side
mirror.
2. Press the arrows on the control pad to move the mirror up,
down, right or left.
3. Adjust each outside mirror so that a little of the vehicle and the
area behind it can be seen. Keep the selector switch in the
center position when not adjusting
either outside mirror.Uplevel with Power Folding
Mirrors
1. Press (1) or (3) to select the driver or passenger side mirror.
2. Press the arrows on the control pad to move the mirror up,
down, right, or left.
3. Adjust each outside mirror so that a little of the vehicle and the
area behind it can be seen.

Black plate (11,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
In Brief 1-11
4. Press either (1) or (3) again todeselect the mirror.
See Power Mirrors on page 2-14.
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.
See Folding Mirrors on page 2-16.
The mirrors may also include a
memory function that works with the
memory seats. See Memory Seats
on page 3-5.
Interior Mirror
Adjustment
Adjust the mirror for a clear view of
the area behind the vehicle. Automatic Dimming Rearview
Mirror
The automatic dimming mirror will
automatically reduce the glare from
the headlamps from behind. The
dimming feature comes on when the
vehicle is started.
See
Automatic Dimming Rearview
Mirror on page 2-19.
Steering Wheel
Adjustment
To adjust the tilt and telescoping
steering wheel:
1. Push the lever (1) down to move
the steering wheel forward or
rearward. Lift the lever up to lock
the wheel in place.
2. Pull the lever (2) toward you and release, to move the steering
wheel up or down.
The ignition may need to be set to
the ACC/ACCESSORY or ON/RUN
position to disengage the tilt and
telescoping steering column and
allow easier adjustment.
Do not adjust the steering wheel
while driving.

Black plate (12,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
1-12 In Brief
Throttle and Brake Pedal
Adjustment
If equipped, the position of the
throttle and brake pedals can be
changed.
The switch used to adjust the
pedals is on the center stack, below
the climate controls.
Lift the switch up to move the
pedals closer to your body. Press
the switch down to move the
pedals away.See
Adjustable Throttle and Brake
Pedal on page 9-23.
Interior Lighting
Dome Lamps
There are dome lamps in the
overhead console and the headliner,
if equipped.
To change the dome lamp settings,
press the following:
OFF: Turns the lamps off, even
when a door is open. DOOR:
The lamps come on
automatically when a door is
opened.
ON: Turns all dome lamps on.
Reading LampsThere are reading lamps in the
overhead console and the headliner,
if equipped. To operate, the ignition
must be in the ACC/ACCESSORY
or ON/RUN position or using
Retained Accessory Power (RAP).

Black plate (13,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
In Brief 1-13
Pressmornnext to each reading
lamp to turn it on or off.
For more information about interior
lighting, see Instrument Panel
Illumination Control on page 6-6.
Exterior Lighting
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
O: Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to the off position again to
turn the automatic headlamps or
DRL back on.
For vehicles first sold in Canada, off
will only work when the vehicle is in
P (Park).
AUTO: Automatically turns on the
headlamps, parking lamps,
taillamps, instrument panel lights,
roof marker lamps (if equipped),
front/rear sidemarker lamps, and
license plate lamps.
;: Turns on the parking lamps
including all lamps, except the
headlamps.
5: Turns on the headlamps
together with the parking lamps and
instrument panel lights. See:
.Exterior Lamp Controls on
page 6-1.
.Daytime Running Lamps (DRL)
on page 6-3.
.Fog Lamps on page 6-5.
Windshield Wiper/Washer
The windshield wiper control is on
the turn signal lever.
The windshield wipers are controlled
by turning the band with
zon it.
1:
Fast wipes.
w:Slow wipes.
3INT: Turn the band up for more
frequent wipes or down for less
frequent wipes.