2018 GMC SIERRA Owner's Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
8 In Brief
Auxiliary Button (If Equipped).
SeeAdd-On Electrical
Equipment 0336.
jPower Assist Steps 043 (If
Equipped).
18. Dual Automatic Climate Control
System 0228 (If Equipped).
19. Steering Wheel Controls 0129
(If Equipped).
Driver Information Center (DIC)
Controls. See Driver
Information Center (DIC)
(Uplevel and Denali Cluster)
0 160 orDriver Information
Center (DIC) (Base Level
Cluster) 0158.
20. Hood Release. See Hood
0 344.
21. Horn 0130. 22.
Steering Wheel Adjustment
0129 (Out of View).
23. Cruise Control 0285.
Heated Steering Wheel 0130
(If Equipped).
Forward Collision Alert (FCA)
System 0292 (If Equipped).
24. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0150.
25. Parking Brake 0281.
26. Electronic Transfer Case Knob (If Equipped). See Four-Wheel
Drive 0272.
Card Holder (If Equipped). See
Instrument Panel Storage
0 124.
Initial Drive
Information
This section provides a brief
overview about some of the
important features that may or may
not be on your specific vehicle.
For more detailed information, refer
to each of the features which can be
found later in this owner ’s manual.
Remote Keyless Entry
(RKE) System
The Remote Keyless Entry (RKE)
transmitter functions may work from
up to 60 m (197 ft) away from the
vehicle.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 9
K:Press to unlock the driver door.
Press
Kagain within three seconds
to unlock all remaining doors and
the tailgate, if equipped.
Q: Press to lock all doors and the
tailgate. Lock and unlock feedback
can be personalized. See Vehicle
Personalization 0165.
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 034 and Remote Keyless
Entry (RKE) System Operation 037.
Remote Vehicle Start
If equipped, the engine can be
started from outside of the vehicle.
Starting the Vehicle
1. Press and releaseQon the
RKE transmitter.
2. Immediately press and hold
/
for at least four seconds or until
the turn signal lamps flash.
Start the vehicle normally after
entering.
When the vehicle starts, the parking
lamps will turn on.
Remote start can be extended.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
. 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 039.
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
10 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 040 and Power
Door Locks 041.
Windows
Power Windows
Crew/Double Cab Premium Trim
Shown, Other Models Similar
Power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) 0260.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Power Sliding Rear Window
If equipped, the power sliding rear
window works when the ignition has
been turned on or to ACC/
ACCESSORY, or when Retained
Accessory Power (RAP) is active.
See Retained Accessory Power
(RAP) 0260.
Using the window switch, press to
open or pull to close the window.
The power sliding rear window
cannot be operated manually. See
“Power Sliding Rear Window” in
Rear Windows 054.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 11
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.
3. Try to move the seat back and forth to be sure it is locked in
place.
See Seat Adjustment 059.
Power Seats
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.
See Power Seat Adjustment 060.
Lumbar Adjustment
Manual Lumbar
If equipped, move the lever up or
down repeatedly to increase or
decrease lumbar support.
See Lumbar Adjustment 060.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
12 In Brief
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.
. 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. See
Lumbar Adjustment 060.
Reclining Seatbacks
Manual Reclining Seatbacks
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. 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.
See Reclining Seatbacks 061.
Power Reclining Seatbacks
To recline a power seatback,
if equipped:
. Tilt the top of the control
rearward to recline.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 13
.Tilt the top of the control forward
to raise.
See Reclining Seatbacks 061.
Memory Features
Crew/Double Cab Shown, Other
Models Similar
If equipped, memory seats allow two
drivers to store and recall their
unique seat positions for driving the
vehicle, and a shared exit position
for getting out of the vehicle. Other
feature positions may also be set,
such as power mirrors, power
steering wheel, and adjustable
pedals, if equipped. Memory positions are linked to RKE
transmitter 1 or 2 for automatic
memory recalls.
Before storing, adjust all available
memory feature positions. Turn the
ignition on and then press and
release SET; a beep will sound.
Then immediately press and hold 1,
2, or
B(Exit) on the driver door
until two beeps sound. To manually
recall these positions, press and
hold 1, 2, or
Buntil the saved
position is reached.
When Auto Memory Recall is
enabled in vehicle personalization,
positions previously stored to
memory buttons 1 and 2 are
recalled when the ignition is
changed from off to on or ACC/
ACCESSORY.
When Easy Exit Options is enabled
in vehicle personalization, the
feature automatically recalls the
previously stored exit position when
exiting the vehicle. See Memory
Seats 062.
Heated and Ventilated
Seats
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.
Press
Ito heat the driver or
passenger seatback only.
Press
Jto heat the driver or
passenger seat cushion and
seatback.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
14 In Brief
PressCto ventilate the driver or
passenger seat.
See Heated and Ventilated Front
Seats 065.
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 058 and
Power Seat Adjustment 060.
Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 069.
. How to Wear Seat Belts Properly
070.
. Lap-Shoulder Belt 071.
. Lower Anchors and Tethers for
Children (LATCH System) 099.
Passenger Sensing
System
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.
If the vehicle has one of the
indicators pictured in the following
illustrations, then the vehicle has a
passenger sensing system for the
front outboard passenger position
unless there is an airbag off switch
on the instrument panel endcap.
If there is an airbag off switch, the
vehicle does not have a passenger
sensing system. See Airbag On-Off
Switch 084 for more information.
The passenger airbag status
indicator will be visible on the
overhead console when the vehicle
is started.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 15
United States
Canada and Mexico
See Passenger Sensing System
0 86 for important information.
Mirror Adjustment
Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.
Exterior Mirrors
Manual Mirrors
If equipped, adjust manual mirrors
by moving them 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.
See Manual Mirrors 047.
Power Mirrors
Base Power Mirrors
If equipped with power mirrors: 1. Press (1) or (2) 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.
4. 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.