
GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
472 OnStar
.Obtain and customize the Wi-Fi®
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped.
Press
>to get a priority connection
to an OnStar Advisor available
24/7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.
OnStar Services
Emergency
Emergency Services require an
active, OnStar service plan
(excludes Basic Plan). With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.
Security
If equipped, OnStar provides these
services:
. With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block™,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown
®,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
Navigation
OnStar navigation requires a
specific OnStar service plan.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
Index 481
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 341
Accessory Power . . . . . . . . . . . . . . . 262
Active Fuel Management
®. . . . . . 266
Add-On Electrical Equipment . . . 334
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . 334
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 476
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 444
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 258
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 52
Agreements Trademarks and License . . . . . 225
Air Cleaner/Filter, Engine . . . . . . . 355
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 235
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 234
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 80
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 71
Passenger Sensing System . . . . 75 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 71
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 71
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
Where Are the Airbags? . . . . . . . . 68
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 79
Light On-Off . . . . . . . . . . . . . . . . . . 130
On-Off Light . . . . . . . . . . . . . . . . . . 130
On-Off Switch . . . . . . . . . . . . . . . . . . 73
Passenger Status Indicator . . . 132
Readiness Light . . . . . . . . . . . . . . 130
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 79
System Check . . . . . . . . . . . . . . . . . . 66
Alarm Vehicle Security . . . . . . . . . . . . . . . . 38
All-Season Tires . . . . . . . . . . . . . . . . 384
All-Terrain Tires . . . . . . . . . . . . . . . . . 385
AM-FM Radio . . . . . . . . . . . . . . 184, 186
Antenna Fixed Mast . . . . . . . . . . . . . . . . . . . 190
Multi-band . . . . . . . . . . . . . . . . . . . . 190
Antilock Brake System (ABS) . . . 281

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
490 Index
ReplacementGlass . . . . . . . . . . . . . . . . . . . . . . . . . 372
Replacement Bulbs . . . . . . . . . . . . . 375
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 81
Maintenance . . . . . . . . . . . . . . . . . . 449
Replacing Airbag System . . . . . . . . 81
Replacing LATCH System
Parts after a Crash . . . . . . . . . . . . . 94
Replacing Safety Belt System Parts after a Crash . . . . . . . . . . . . . 66
Reporting Safety Defects Canadian Government . . . . . . . . 468
General Motors . . . . . . . . . . . . . . . 468
U.S. Government . . . . . . . . . . . . . 468
Restraints
Where to Put . . . . . . . . . . . . . . . . . . . 87
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . 262
Reverse Tilt Mirrors . . . . . . . . . . . . . . 45
Ride Control Systems Messages . . . . . . . . . . . . . . . . . . . . 149
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 246
Roadside Assistance
Program . . . . . . . . . . . . . . . . . . . . . . . 461
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 48 Rotation, Tires . . . . . . . . . . . . . . . . . . 398
Routing, Engine Drive Belt . . . . . . 456
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . 267
S
Safety Belts . . . . . . . . . . . . . . . . . . . . . 59Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Extender . . . . . . . . . . . . . . . . . . . . . . . . 65
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 60
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 64
Lap-Shoulder Belt . . . . . . . . . . . . . . 61
Messages . . . . . . . . . . . . . . . . . . . . 150
Reminders . . . . . . . . . . . . . . . . . . . . 129
Replacing after a Crash . . . . . . . . 66
Use During Pregnancy . . . . . . . . . . 64
Safety Defects Reporting Canadian Government . . . . . . . . 468
General Motors . . . . . . . . . . . . . . . 468
U.S. Government . . . . . . . . . . . . . 468
Safety Locks . . . . . . . . . . . . . . . . . . . . . 36
Safety System Check . . . . . . . . . . . . 65
Satellite Radio . . . . . . . . . . . . . . . . . . 188
Scheduling Appointments . . . . . . . 463
Seats Head Restraints . . . . . . . . . . . . . . . . 51
Heated and Ventilated Front . . . . 55
Lumbar Adjustment, Front . . . . . . 52 Seats (cont'd)
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 54
Power Adjustment, Front . . . . . . . 52
Rear . . . . . . . . . . . . . . . . . . . . . . . . 57, 58
Reclining Seatbacks . . . . . . . . . . . . 53
Securing Child Restraints . . . . 95, 98
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Messages . . . . . . . . . . . . . . . . . . . . 150
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 472
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 38
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 38
Service . . . . . . . . . . . . . . . . . . . . . . . . . 236 Accessories and
Modifications . . . . . . . . . . . . . . . . 341
Doing Your Own Work . . . . . . . . 342
Engine Soon Light . . . . . . . . . . . . 133
Maintenance Records . . . . . . . . 451
Maintenance, General Information . . . . . . . . . . . . . . . . . . 437
Parts Identification Label . . . . . 452
Publications Ordering Information . . . . . . . . . . . . . . . . . . 466
Scheduling Appointments . . . . . 463
Services Special Application . . . . . . . . . . . 444
Servicing the Airbag . . . . . . . . . . . . . 79

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
492 Index
Tires (cont'd)Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 403
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 404
Wheel Replacement . . . . . . . . . . 404
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 400
Winter . . . . . . . . . . . . . . . . . . . . . . . . 384
Tow/Haul Mode . . . . . . . . . . . . . . . . . 273
Tow/Haul Mode Light . . . . . . . . . . . 136
Towing Driving Characteristics . . . . . . . . 304
Equipment . . . . . . . . . . . . . . . . . . . . 324
General Information . . . . . . . . . . 304
Recreational Vehicle . . . . . . . . . . 423
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 307
Trailer Sway Control (TSC) . . . 333
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 422
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . 138
Off Light . . . . . . . . . . . . . . . . . . . . . . 137
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 284
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . 225 Trailer
Sway Control (TSC) . . . . . . . . . . 333
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . 41
Towing . . . . . . . . . . . . . . . . . . . . . . . . 307
Transfer Case . . . . . . . . . . . . . . . . . . 274
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 267
Fluid, Automatic . . . . . . . . . 352, 354
Messages . . . . . . . . . . . . . . . . . . . . 152
Temperature Gauge . . . . . . . . . . 128
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 463
Trip Odometer . . . . . . . . . . . . . . . . . . 125
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . . 256
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 170
Turn Signal Bulb Replacement . . . . . . . . . . . . 374
U
Uniform Tire Quality Grading . . . 403
Universal Remote System . . . . . . 162Operation . . . . . . . . . . . . . . . . . . . . . 164
Programming . . . . . . . . . . . . . . . . . 162
Updates
Software . . . . . . . . . . . . . . . . . . . . . . 184
USB Port . . . . . . . . . . . . . . . . . . 193, 196
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 38
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 239
Identification Number (VIN) . . . 452
Load Limits . . . . . . . . . . . . . . . . . . . 250
Messages . . . . . . . . . . . . . . . . . . . . 144
Personalization . . . . . . . . . . . . . . . 155
Reminder Messages . . . . . . . . . . 153
Remote Start . . . . . . . . . . . . . . . . . . . 33
Security . . . . . . . . . . . . . . . . . . . . . . . . 38
Speed Messages . . . . . . . . . . . . . 154
Towing . . . . . . . . . . . . . . . . . . . . . . . . 422
Vehicle Ahead Indicator . . . . . . . . 137
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 391
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 469
Ventilation, Air . . . . . . . . . . . . . . . . . . 234
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Voice Recognition . . . . . . . . . . . . . . 204
Voltage Devices and Wiring . . . . 376
Voltmeter Gauge . . . . . . . . . . . . . . . 128