
GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
180 Lighting
Some localities have laws that
require the headlamps to be on with
the fog lamps.
Auxiliary
Roof-Mounted Lamp
If equipped, this button includes
wiring provisions for a dealer or a
qualified service center to install an
auxiliary roof lamp.
This button is on the overhead
console.
When the wiring is connected to an
auxiliary roof-mounted lamp,
pressing the bottom of the button
will activate the lamp and illuminate
an indicator light at the bottom ofthis button. Pressing the top of the
button will turn off the roof-mounted
lamp and indicator.
The emergency roof lamp circuit is
fused at 30 amps, so the total
current draw of the attached lamps
should be less than this value. The
attachment points for the roof lamp
circuits are two blunt cut wires
above the overhead console: a dark
green with blue stripe switched
power wire and a black ground wire.
For information on roof-mounted
emergency lamp installation, see
www.gmupfitter.com or contact your
dealer.
If the vehicle has this button, the
vehicle may have the snow plow
prep package. See
Add-On
Electrical Equipment 0349.
Interior Lighting
Instrument Panel
Illumination Control
This feature controls the brightness
of the steering wheel and instrument
panel lights. The instrument panel
illumination control is next to the
exterior lamp control.
D(Instrument Panel
Illumination) : Move the
thumbwheel up or down to brighten
or dim the lights.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Infotainment System 205
If the CD is not playing correctly for
any other reason, try a known
good CD.
If any error continues, contact your
dealer.
Playing an MP3 CD
To play an MP3 CD, follow the same
instructions as“Playing an
Audio CD.”
The following guidelines must be
met when creating an MP3 disc,
otherwise the CD might not play:
. Sampling rate: 16 kHz,
22.05 kHz, 24 kHz, 32 kHz,
44.1 kHz, and 48 kHz.
. Bit rates supported: 8, 16, 24,
32, 40, 48, 56, 64, 80, 96, 112,
128, 144, 160, 192, 224, 256,
and 320 kbps.
. Maximum number of folders:
eight folders with 255 files per
folder.
. Maximum of 1,000 files on
a disc.
. Recorded on a CD-R or CD-RW. Root Directory
The root directory is treated as a
folder. All files contained directly
under the root directory are
accessed prior to any root directory
folders.
Empty Folders
If a root directory or folder is empty
or contains only folders, the player
advances to the next folder in the
file structure that contains a
compressed audio file. The empty
folder(s) are not displayed or
numbered.
No Folder
When the CD only contains
compressed audio files without any
folders, all files are under the root
folder.
USB Port (Base Radio)
Playing from a USB
A USB mass storage device or
Media Transfer Protocol (MTP)
device can be connected to the
USB port. The vehicle may have USB ports in
the front of the center console,
armrest, or one in the upper glove
box. See
Center Console Storage
0 118 and Glove Box 0117.
USB MP3 Player and USB Drives
. The USB MP3 players and USB
drives connected must comply
with the USB Mass Storage
Class specification (USB MSC).
. Hard disk drives are not
supported.
. Supported file system is FAT32.
To play a USB device:
. Connect the USB.
. Press MEDIA on the faceplate
until the connected device is
shown.
While the USB source is active,
press the corresponding faceplate
button for the icons on the screen to
operate USB function:
.t
.u
.j/r

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
206 Infotainment System
.Z
For information on how to use the
screen icons, see“Playing an
Audio CD.”
USB Menu
Press MENU to display the USB
menu and the following may display:
Browse : Select to display the files
and folders on the USB device.
Tone Settings : Select to adjust
Bass, Midrange, Treble, Balance,
Fade, and EQ (Equalizer). See
“Tone Settings” under“Playing an
Audio CD” inCD Player 0203.
Auto Volume : If equipped, see
“Playing an Audio CD” inCD
Player 0203.
EQ (Equalizer) : If equipped, this
feature adjusts the equalizer
settings. See “EQ (Equalizer)
Settings” inAM-FM Radio (Base
Radio with Touchscreen) 0195 or
AM-FM Radio (Base Radio) 0193.
Playing from an iPod®/iPad®/
iPhone®
This feature supports the following
devices:
. iPod nano
®(1st, 2nd, 3rd, and
4th generation)
. iPod with video (5.0 and 5.5
generation)
. iPod classic
®(6th generation)
. iPod touch
®(1st and 2nd
generation)
. iPad
. iPhone 3G, iPhone 3GS,
iPhone 4
There may be problems with
operation and function in the
following situations:
. When connecting a device with
a more recent version of the
firmware installed than is
supported by the infotainment
system.
. When connecting a device on
which firmware from other
providers is installed. To connect and control a device:
1. Connect one end of the standard USB cable to the
device's dock connector.
2. Connect the other end to a USB port in the center console.
See Center Console
Storage 0118.
3. Press MEDIA to select the source.
The music information displays on
the radio’s display and begins
playing through the vehicle’s audio
system.
The device battery recharges
automatically while the vehicle is on.
When the vehicle is off while a
device is connected using the USB
cable, the device battery stops
charging and the device will
automatically turn off.
If the device is an unsupported
model, it can still be listened to in
the vehicle by connecting to the
auxiliary input jack using a standard
3.5 mm (1/8 in) stereo cable.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Infotainment System 209
Playing Movies
Movies are not available while
driving.
If the USB storage device is already
connected:1. Press
{.
2. Touch GALLERY.
3. Touch
s.
4. Touch the desired Movie.
Viewing Pictures
Pictures are not available while
driving.
If the USB storage device is already
connected:
1. Press
{.
2. Touch GALLERY.
3. Touch
\.
Auxiliary Jack
This vehicle may have an AUX jack
in the center console or armrest.
See Center Console Storage 0118. Possible auxiliary audio sources
include:
.
Laptop computer
. Audio music player
This jack is not an audio output. Do
not plug headphones into the
auxiliary input jack. Auxiliary
devices should be set up while the
vehicle is in P (Park).
Connect a 3.5 mm (1/8 in) cable
from the auxiliary device to the
auxiliary input jack.
If an auxiliary device has already
been connected, but a different
source is currently active, press the
MEDIA faceplate button repeatedly
to scroll through all of the available
audio source screens, until the AUX
source screen is shown.
Base Radio
Playing from the AUX Jack
An auxiliary device is played
through the audio system and
controlled through the device itself. AUX Menu
Press the MENU knob to display the
AUX menu and the following may
display:
Tone Settings :
Select to adjust
Bass, Midrange, Treble, Balance,
Fade, and EQ (Equalizer). See
“Tone Settings” inAM-FM Radio
(Base Radio with Touchscreen)
0 195 orAM-FM Radio (Base
Radio) 0193.
Auto Volume : If equipped, see
“Playing an Audio CD.”
DSP : If equipped, this feature
adjusts the pre-defined settings.
See “DSP” inAM-FM Radio (Base
Radio with Touchscreen) 0195 or
AM-FM Radio (Base Radio) 0193.
EQ (Equalizer) : If equipped, this
feature adjusts the pre-defined
equalizer settings. See “EQ
(Equalizer)” inAM-FM Radio (Base
Radio with Touchscreen) 0195 or
AM-FM Radio (Base Radio) 0193.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Driving and Operating 281
To control the fast idle:
.To enable the Fast Idle System,
press and release the cruise
control on/off button and ensure
that the switch indicator light
is lit.
. Press and release the cruise
control SET- button. Engine
speed will be held at
approximately 1200 rpm.
One of the following actions will turn
off the fast idle:
. Pressing the brake.
. Selecting the cruise control
cancel button.
. Releasing the parking brake.
. Moving the transmission shift
lever out of P (Park) or
N (Neutral).
. Selecting the cruise control on/
off button when it was
previously on.
. Pressing the cruise control SET-
button a second time. .
Pressing the accelerator more
than one-quarter of the
way down.
. Turning the ignition switch to the
LOCK/OFF position.
Retained Accessory
Power (RAP)
The following vehicle accessories
can be used for up to 10 minutes
after the engine is turned off:
.Audio System
. Power Windows
. OnStar System (if equipped)
. Sunroof (if equipped)
These features work when the key
is in ON/RUN or ACC/
ACCESSORY. Once the key is
turned from ON/RUN to LOCK/OFF,
the windows and sunroof continue
to work up to 10 minutes or until any
door is opened. The radio continues
to work for up to 10 minutes or until
the driver door is opened. Accessory Power Outlets (APOs)
The vehicle may have APOs in
several locations. See
Power
Outlets 0126.
The APOs in the console or center
seat position are powered by RAP.
They will continue to work for up to
10 minutes after the key is turned
from ON/RUN to LOCK/OFF, or until
the driver door is opened.
The APOs on the center stack come
from the factory powered directly
from the vehicle battery, and supply
accessory power at all times,
regardless of ignition key position.
If electronic items are left plugged
into these APOs for long periods of
time with the vehicle off, the vehicle
battery could be drained. The
vehicle may not start if the battery is
allowed to drain for an extended
period of time.
Engine Coolant Heater
The engine heater can provide
easier starting and better fuel
economy during engine warm-up in
cold weather conditions at or below

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
498 Index
California (cont'd)Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 356
California
Proposition
65 Warning . . . . . . . . . .355, 382, 434
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 468
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 285
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 40
Winter Driving . . . . . . . . . . . . . . . . 267
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . .119
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 181
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 203
Center Console Storage . . . . . . . . 118
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 390
Center Seat . . . . . . . . . . . . . . . . . . . . . 57
Chains, Tire . . . . . . . . . . . . . . . . . . . . 422
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . 128
Charging System Light . . . . . . . . . 140 Check
Ignition Transmission Lock . . . 387
Malfunction Indicator
Engine Light . . . . . . . . . . . . . . . . 141
Child Restraints Infants and Young Children . . . . . 88
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 94
Older Children . . . . . . . . . . . . . . . . . . 87
Securing . . . . . . . . . . . . . . . . . 105, 108
Systems . . . . . . . . . . . . . . . . . . . . . . . . 91
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 444
Interior Care . . . . . . . . . . . . . . . . . . 449
Climate Control Systems . . . . . . . . . . . . . . . . . 246, 248
Air Conditioning . . . . . . . . . 246, 248
Dual Automatic . . . . . . . . . . . . . . . 250
Heating . . . . . . . . . . . . . . . . . . 246, 248
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Cluster, Instrument . . . . . . . . . . . . . 130
Collision Damage Repair . . . . . . . 479
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . .117
Compass . . . . . . . . . . . . . . . . . . . . . . . 125
Messages . . . . . . . . . . . . . . . . . . . . 154
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 488 Control . . . . . . . . . . . . . . . . . . . . . . . . . 305
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 303
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 144
Control of a Vehicle . . . . . . . . . . . . . 258
Convex Mirrors . . . . . . . . . . . . . . . . . . 45
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 373
Engine Temperature Gauge . . 135
Cooling System . . . . . . . . . . . . . . . . . 371
Engine Messages . . . . . . . . . . . . 154
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 478
Cruise Control . . . . . . . . . . . . . . . . . . 306 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Cupholders . . . . . . . . . . . . . . . . . . . . . 117
Customer Assistance . . . . . . . . . . . 475 Offices . . . . . . . . . . . . . . . . . . . . . . . . 474
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 475
Customer Information Service PublicationsOrdering Information . . . . . . . . 481
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 472

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
506 Index
Signals, Turn andLane-Change . . . . . . . . . . . . . . . . . 179
Snow Plow . . . . . . . . . . . . . . . . . . . . . 349
Software Updates . . . . . . . . . . . . . . 193
Special Application Services . . . . 460
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 468
Speedometer . . . . . . . . . . . . . . . . . . . 133
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 145
Start Assist, Hills . . . . . . . . . . . . . . . 302
Start Vehicle, Remote . . . . . . . . . . . 37
Starter Switch Check . . . . . . . . . . . 386
Starting the Engine . . . . . . . . . . . . . 279
Steering . . . . . . . . . . . . . . . . . . . . . . . . 259 Fluid, Power . . . . . . . . . . . . . . . . . . 378
Heated Wheel . . . . . . . . . . . . . . . . 123
Wheel Adjustment . . . . . . . . . . . . 122
Wheel Controls . . . . . . . . . . . . . . . 123
Steering System Messages . . . . . 159
Steps Power Assist . . . . . . . . . . . . . . . . . . . 41
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 389
Storage Areas
Center Console . . . . . . . . . . . . . . . .118
Floor Console . . . . . . . . . . . . . . . . .119
Glove Box . . . . . . . . . . . . . . . . . . . . .117 Storage Areas (cont'd)
Instrument Panel . . . . . . . . . . . . . .117
Sunglasses . . . . . . . . . . . . . . . . . . . .118
Storage Compartments . . . . . . . . . 117
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 268
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 53
Sunglass Storage . . . . . . . . . . . . . . . 118
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 78
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 312
Infotainment . . . . . . . . . . . . . 185, 485
Noise Control . . . . . . . . . . . . . . . . . 385
Systems Driver Assistance . . . . . . . . . . . . . 309
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 133
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 40
TaillampsBulb Replacement . . . . . . . . . . . . 389
Text Telephone (TTY) Users . . . . 475
Theft-Deterrent Systems . . . . . . . . . 44 Immobilizer . . . . . . . . . . . . . . . . . . . . . 44
Throttle, Adjustable . . . . . . . . . . . . . 277
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399
All-Season . . . . . . . . . . . . . . . . . . . . 400
All-Terrain . . . . . . . . . . . . . . . . . . . . 401
Buying New Tires . . . . . . . . . . . . . 417
Chains . . . . . . . . . . . . . . . . . . . . . . . . 422
Changing . . . . . . . . . . . . . . . . . . . . . 424
Designations . . . . . . . . . . . . . . . . . 404
Different Size . . . . . . . . . . . . . . . . . 419
Full-Size Spare . . . . . . . . . . . . . . . 433
If a Tire Goes Flat . . . . . . . . . . . . 423
Inspection . . . . . . . . . . . . . . . . . . . . 414
Low Profile . . . . . . . . . . . . . . . . . . . 401
Messages . . . . . . . . . . . . . . . . . . . . 159
Pressure . . . . . . . . . . . . . . . . . . . . . . 409
Pressure Light . . . . . . . . . . . . . . . . 146
Pressure Monitor Operation . . 410
Pressure Monitor System . . . . . 409
Rotation . . . . . . . . . . . . . . . . . . . . . . 414
Sidewall Labeling . . . . . . . . . . . . . 401
Terminology and Definitions . . 405
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 419
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 421
Wheel Replacement . . . . . . . . . . 421
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 416
Winter . . . . . . . . . . . . . . . . . . . . . . . . 400