2018 GMC SIERRA DENALI center console

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
182 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 of this 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 0 336 .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 : Move the thumbwheel up or
down to brighten or dim the lights.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Infotainment System 197If 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 Using the USB Port
The infotainment system can play
music by connecting an auxiliary
device to the USB port. USB Support
If equipped, there are USB ports is
in the center stack below the climate
controls, in the glove box, in the
center console under the armrest,
and at the rear of the center
console. All ports use the USB 2.0
standard.
USB Supported Devices
.
USB Flash Drives
.
Portable USB Hard Drives
Not all iPods and USB drives are
compatible with the USB port.
Make sure the iPod has the latest
firmware from Apple for proper
operation. iPod firmware can be
updated using the latest iTunes
application. See www.apple.com/
itunes.
For help with identifying your iPod,
go to www.apple.com/support.
The USB port can play both lower
and upper case .mp3, .wma, .ogg,
and .wav files stored on a USB
storage device.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Infotainment System 203Rotating a Picture
Touch
w from the picture screen.
Enlarging a Picture
Touch
x from the picture screen.
Using the USB Picture Menu
1. Touch MENU from the picture
screen.
2. Touch the appropriate menu:
.
Slide Show Time: Allows
selection of the slide show
interval.
.
Clock, Temp. Display:
Allows selection of On or
Off to show the clock and
temperature on the full
screen.
.
Display Settings: Adjusts
for Brightness and Contrast.
3. Touch
0 to exit.
Auxiliary Jack This vehicle may have an AUX jack
in the center console or armrest.
See Center Console Storage 0 125 . 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 ” in AM-FM Radio
0 190 .
Auto Volume : If equipped, see
“ Playing an Audio CD. ”
DSP : If equipped, this feature
adjusts the pre-defined settings.
See “ DSP ” in AM-FM Radio 0 190 .
EQ (Equalizer) : If equipped, this
feature adjusts the pre-defined
equalizer settings. See “ EQ
(Equalizer) ” in AM-FM Radio 0 190 .
Base Radio with Touchscreen
Play will begin when the system has
finished reading the information on
the device.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
260 Driving and Operating .
Pressing the accelerator more
than one-quarter of the
way down.
.
Turning the ignition off.
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 Accessory
Power Outlets (APOs) in several
locations. See Power Outlets 0 133 .
The APOs in the console or center
seat position are powered by
Retained Accessory Power (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
− 18 °C (0 °F). Vehicles with an
engine heater should be plugged in
at least four hours before starting.
An internal thermostat in the
plug-end of the cord may exist,
which will prevent engine coolant
heater operation at temperatures
above − 18 °C (0 °F).
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
{ Warning
Do not plug in the engine block
heater while the vehicle is parked
in a garage or under a carport.
Property damage or personal
injury may result. Always park the
vehicle in a clear open area away
from buildings or structures.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Index 493California (cont'd)
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 343
California
Proposition
65 Warning . . . . . . . . . .343, 369, 426,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 461
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 264
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 43
Winter Driving . . . . . . . . . . . . . . . . 245
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . 126
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 183
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 195
Center Console Storage . . . . . . . . 125
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 380
Center Seat . . . . . . . . . . . . . . . . . . . . . 59
Chains, Tire . . . . . . . . . . . . . . . . . . . . 413
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . 134
Charging System Light . . . . . . . . . 149 Check
Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 150
Ignition Transmission Lock . . . 374
Child Restraints
Infants and Young Children . . . . . 94
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 99
Older Children . . . . . . . . . . . . . . . . . . 92
Securing . . . . . . . . . . . . . 111, 114, 115
Systems . . . . . . . . . . . . . . . . . . . . . . . . 96
Circuit Breakers . . . . . . . . . . . . . . . . 381
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 435
Interior Care . . . . . . . . . . . . . . . . . . 441
Climate Control
Systems . . . . . . . . . . . . . . . . . 224, 226
Air Conditioning . . . . . . . . . 224, 226
Dual Automatic . . . . . . . . . . . . . . . 228
Heating . . . . . . . . . . . . . . . . . . 224, 226
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Cluster, Instrument . . . . . . . . . . . . . 138
Collision Damage Repair . . . . . . . 472
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 124
Compass . . . . . . . . . . . . . . . . . . . . . . . 131
Connections
OnStar . . . . . . . . . . . . . . . . . . . . . . . 482 Control
Hill Descent . . . . . . . . . . . . . . . . . . 284
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 282
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 153
Control of a Vehicle . . . . . . . . . . . . . 236
Convex Mirrors . . . . . . . . . . . . . . . . . . 47
Coolant
Engine Temperature Gauge . . 144
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 155
Cooling . . . . . . . . . . . . . . .224, 226, 228
Cooling System . . . . . . . . . . . . . . . . . 359
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 471
Cruise Control . . . . . . . . . . . . . . . . . . 285
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Cupholders . . . . . . . . . . . . . . . . . . . . . 124
Customer Assistance . . . . . . . . . . . 468
Offices . . . . . . . . . . . . . . . . . . . . . . . . 467
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 468
Customer Information
Service Publications
Ordering Information . . . . . . . . 474
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 465

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Index 501StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 154
Start Assist, Hill . . . . . . . . . . . . . . . . . 282
Start Vehicle, Remote . . . . . . . . . . . 39
Starter Switch Check . . . . . . . . . . . 374
Starting the Engine . . . . . . . . . . . . . 258
Steering . . . . . . . . . . . . . . . . . . . . . . . . 237
Fluid, Power . . . . . . . . . . . . . . . . . . 365
Heated Wheel . . . . . . . . . . . . . . . . 130
Wheel Adjustment . . . . . . . . . . . . 129
Wheel Controls . . . . . . . . . . . . . . . 129
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 43
Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . 378
Storage Areas
Center Console . . . . . . . . . . . . . . . 125
Floor Console . . . . . . . . . . . . . . . . 126
Glove Box . . . . . . . . . . . . . . . . . . . . 124
Instrument Panel . . . . . . . . . . . . . 124
Sunglasses . . . . . . . . . . . . . . . . . . . 125
Storage Compartments . . . . . . . . . 124
Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 247
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 55
Sunglass Storage . . . . . . . . . . . . . . . 125
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 84
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 292
Infotainment . . . . . . . . . . . . . 186, 478
Noise Control . . . . . . . . . . . . . . . . . 373
Systems
Driver Assistance . . . . . . . . . . . . . 288
T Tachometer . . . . . . . . . . . . . . . . . . . . . 142
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Taillamps
Bulb Replacement . . . . . . . . . . . . 378
Text Telephone (TTY) Users . . . . 468
Theft-Deterrent Systems . . . . . . . . . 46
Immobilizer . . . . . . . . . . . . . . . . . . . . . 46
Throttle, Adjustable . . . . . . . . . . . . . 256
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
All-Season . . . . . . . . . . . . . . . . . . . . 389
All-Terrain . . . . . . . . . . . . . . . . . . . . 391
Buying New Tires . . . . . . . . . . . . . 408
Chains . . . . . . . . . . . . . . . . . . . . . . . . 413
Changing . . . . . . . . . . . . . . . . . . . . . 415
Designations . . . . . . . . . . . . . . . . . 393 Tires (cont'd)
Different Size . . . . . . . . . . . . . . . . . 409
Full-Size Spare . . . . . . . . . . . . . . . 425
If a Tire Goes Flat . . . . . . . . . . . . 413
Inspection . . . . . . . . . . . . . . . . . . . . 404
Low Profile . . . . . . . . . . . . . . . . . . . 390
Pressure . . . . . . . . . . . . . . . . . 397, 399
Pressure Light . . . . . . . . . . . . . . . . 156
Pressure Monitor Operation . . 400
Pressure Monitor System . . . . . 399
Rotation . . . . . . . . . . . . . . . . . . . . . . 405
Sidewall Labeling . . . . . . . . . . . . . 391
Terminology and Definitions . . 395
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 410
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . .411
Wheel Replacement . . . . . . . . . . 412
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 407
Winter . . . . . . . . . . . . . . . . . . . . . . . . 390
Tow/Haul Mode . . . . . . . . . . . . . . . . . 271
Tow/Haul Mode Light . . . . . . . . . . . 153
Towing
Driving Characteristics . . . . . . . . 303
Equipment . . . . . . . . . . . . . . . . . . . . 325
General Information . . . . . . . . . . 303
Recreational Vehicle . . . . . . . . . . 430