mirror GMC SIERRA 1500 2015 Owners Manual

Black plate (1,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
2015 GMC Sierra Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-21
Performance and Maintenance . . . . . . . . . . . . . . . . 1-27
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security . . . . . . . . . . . . . . 2-11
Exterior Mirrors . . . . . . . . . . . . . . . 2-13
Interior Mirrors . . . . . . . . . . . . . . . . 2-17
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . 3-10
Safety Belts . . . . . . . . . . . . . . . . . . 3-12
Airbag System . . . . . . . . . . . . . . . . 3-21
Child Restraints . . . . . . . . . . . . . . 3-37 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-4
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Information Displays . . . . . . . . . . 5-30
Vehicle Messages . . . . . . . . . . . . 5-35
Vehicle Personalization . . . . . . . 5-45
Universal Remote System . . . . 5-52
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-6
Lighting Features . . . . . . . . . . . . . . 6-8
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Audio Players . . . . . . . . . . . . . . . . 7-15
Voice Recognition . . . . . . . . . . . . 7-22
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-29
Trademarks and License Agreements . . . . . . . . . . . . . . . . . 7-46 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-8
Maintenance . . . . . . . . . . . . . . . . . . . 8-9
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-23
Engine Exhaust . . . . . . . . . . . . . . 9-32
Automatic Transmission . . . . . . 9-33
Drive Systems . . . . . . . . . . . . . . . . 9-38
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-47
Ride Control Systems . . . . . . . . 9-50
Cruise Control . . . . . . . . . . . . . . . . 9-53
Driver Assistance Systems . . . 9-56
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-64
Trailer Towing . . . . . . . . . . . . . . . . 9-69
Conversions and Add-Ons . . . 9-97
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-37
Bulb Replacement . . . . . . . . . . 10-37
Electrical System . . . . . . . . . . . . 10-41
Wheels and Tires . . . . . . . . . . . 10-50

Black plate (5,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Introduction v
g:Audio Steering Wheel Controls
or OnStar®(if equipped)
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway
Mirrors
O: Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_: Tow/Haul Mode
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

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 (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 (11,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
In Brief 1-11
Safety Belts
Refer to the following sections for
important information on how to use
safety belts properly.
.Safety Belts on page 3-12.
.How to Wear Safety Belts
Properly on page 3-13.
.Lap-Shoulder Belt on page 3-14.
.Lower Anchors and Tethers for
Children (LATCH System) on
page 3-45.
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. SeeAirbag On-Off
Switch on page 3-28 for more
information.
The passenger airbag status
indicator will be visible on the
overhead console when the vehicle
is started.
United States
Canada and Mexico
See Passenger Sensing System on
page 3-30 for important information.
Mirror Adjustment
Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.

Black plate (12,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
1-12 In Brief
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.
SeeManual Mirrors on page 2-13.
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 one of the four 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. 2. Press the arrows on the control
pad while the indicator light on
the (1) or (3) button is
illuminated, 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. Press either (1) or (3) again to deselect 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 2-15.
The mirrors may also include a
memory function that works with the
memory seats. See Memory Seats
on page 3-6.

Black plate (13,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
In Brief 1-13
Interior Mirror
Adjustment
Adjust the mirror for a clear view of
the area behind the vehicle.
Manual Dimming Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it for nighttime
use to avoid glare from the
headlamps from behind. See
Manual Rearview Mirror on
page 2-17.
Automatic Dimming Rearview
Mirror
If equipped, the mirror will
automatically reduce the glare of the
headlamps from behind. The
dimming feature comes on when the
vehicle is started.
SeeAutomatic Dimming Rearview
Mirror on page 2-18.
Steering Wheel
Adjustment
To adjust the steering wheel:
1. Hold the steering wheel and pull the lever.
2. Move the steering wheel up or down.
3. Release the lever to lock the wheel in place. Tilt and Telescoping Steering
WheelTo adjust the tilt and telescoping
steering wheel, if equipped:
1. Push the lever (1) down to move
the steering wheel forward or
rearward. Lift the lever up to lock
the wheel in place.
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.

Black plate (18,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
1-18 In Brief
Climate Control System (with Air Conditioning)
1. Fan Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Control
4. Defrost
5. TEMP (Temperature Control)
6. Air Recirculation7.KRear Window Defogger
(If Equipped)
fOutside Heated Mirror
(If Equipped)
8Outside Air (If Equipped)

Black plate (1,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-3
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-6
Door Locks . . . . . . . . . . . . . . . . . . . 2-7
Power Door Locks . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . 2-8
Automatic Door Locks . . . . . . . . . 2-8
Lockout Protection . . . . . . . . . . . . 2-9
Safety Locks . . . . . . . . . . . . . . . . . . 2-9
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-11
Vehicle Alarm System . . . . . . . . 2-11
Immobilizer . . . . . . . . . . . . . . . . . . 2-12
Immobilizer Operation . . . . . . . 2-12
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-13
Manual Mirrors . . . . . . . . . . . . . . . 2-13
Trailer-Tow Mirrors . . . . . . . . . . . 2-13
Power Mirrors . . . . . . . . . . . . . . . . 2-14
Folding Mirrors . . . . . . . . . . . . . . . 2-15
Heated Mirrors . . . . . . . . . . . . . . . 2-16
Automatic Dimming Mirror . . . 2-16
Blind Spot Mirrors . . . . . . . . . . . 2-16
Reverse Tilt Mirrors . . . . . . . . . . 2-17
Interior Mirrors
Interior Rearview Mirrors . . . . . 2-17
Manual Rearview Mirror . . . . . . 2-17
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-18
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Manual Windows . . . . . . . . . . . . 2-18
Power Windows . . . . . . . . . . . . . 2-18
Rear Windows . . . . . . . . . . . . . . . 2-21
Sun Visors . . . . . . . . . . . . . . . . . . . 2-21
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-22
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
the ignition key is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the keys in the
ignition, and children or others
could be caught in the path of a
closing window. Do not leave
children in a vehicle with the
ignition key.

Black plate (4,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
2-4 Keys, Doors, and Windows
With Remote Start (withoutRemote Start Similar)
/(Remote Vehicle Start):
If equipped,
/is used to start the
engine from outside the vehicle
using the RKE transmitter. See
Remote Vehicle Start on page 2-6.
Q(Lock): Press to lock all doors.
If enabled through the Driver
Information Center (DIC), the turn
signal lamps flash once to indicate
locking has occurred. If enabled
through the DIC, the horn chirps when
Qis pressed again within
three seconds. See Vehicle
Personalization on page 5-45.
Pressing
Qarms the content
theft-deterrent system. See Vehicle
Alarm System on page 2-11.
If equipped with auto mirror folding,
pressing and holding
Qfor
one second will fold the mirrors. The
auto mirror folding feature will not
operate unless it is enabled. See
Vehicle Personalization on
page 5-45.
K(Unlock): Press once to unlock
only the driver door. If
Kis pressed
again within three seconds, all
remaining doors unlock. The interior
lamps may come on and stay on for
20 seconds or until the ignition is
turned on.
If enabled through the DIC, the turn
signal lamps flash twice to indicate
unlocking has occurred. See Vehicle
Personalization on page 5-45.
If enabled through the DIC, the exterior lamps may turn on. See
Vehicle Personalization on
page 5-45.
Pressing
Kon the RKE transmitter
disarms the content theft-deterrent
system. See Vehicle Alarm System
on page 2-11.
If equipped with auto mirror folding,
pressing and holding
Kfor
one second will unfold the mirrors.
The auto mirror folding feature will
not operate unless it is enabled.
See Vehicle Personalization on
page 5-45.
7(Vehicle Locator/Panic
Alarm): Press and release one
time to initiate vehicle locator. The
turn signal lamps flash and the horn
sounds three times.
Press and hold
7for at least
three seconds to sound the panic
alarm. The turn signal lamps flash
and the horn sounds repeatedly for
30 seconds. The alarm turns off
when the ignition is moved to ON/