
GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
380 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Accessory power outlet 3 Fuses Usage
2 Accessory power outlet 4
7 Body control module 4
8 Body control module 8
9 Rear seat entertainment
10 Cargo lamp
15 Steering wheel controls
18 Radio
19 –
20 Sunroof
23 Airbag/Info
26 Export/Power take off/ SEO battery 1
27 Obstacle detection/ USB ports
28 Body control module 2
32 SEO battery 2
35 AC inverter
36 Amplifier
37 –

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
440 Service and Maintenance
.Lubricate body components. See
Exterior Care 0427.
. Check starter switch. See Starter
Switch Check 0371.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function
Check 0371.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0371.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism
Check 0371.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
. Inspect sunroof track and seal,
if equipped. See Sunroof048. .
Verify spare tire key lock
operation and lubricate as
needed. See Tire
Changing 0408.

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
Index 491
Shift Lock Control FunctionCheck, Automatic
Transmission . . . . . . . . . . . . . . . . . . 371
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 264
Out of Park . . . . . . . . . . . . . . . . . . . 265
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 170
Snow Plow . . . . . . . . . . . . . . . . . . . . . 334
Software Updates . . . . . . . . . . . . . . 184
Special Application Services . . . . 444
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 453
Speedometer . . . . . . . . . . . . . . . . . . . 125
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 137
Start Assist, Hill . . . . . . . . . . . . . . . . . 283
Start Vehicle, Remote . . . . . . . . . . . 33
Starter Switch Check . . . . . . . . . . . 371
Starting the Engine . . . . . . . . . . . . . 260
Steering . . . . . . . . . . . . . . . . . . . . . . . . 240 Fluid, Power . . . . . . . . . . . . . . . . . . 363
Heated Wheel . . . . . . . . . . . . . . . . .114
Wheel Adjustment . . . . . . . . . . . . .113
Wheel Controls . . . . . . . . . . . . . . . .113
Steering System Messages . . . . . 151
Steps Power Assist . . . . . . . . . . . . . . . . . . . 37 Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . 374
Storage Areas Center Console . . . . . . . . . . . . . . . 109
Floor Console . . . . . . . . . . . . . . . . .110
Glove Box . . . . . . . . . . . . . . . . . . . . 108
Instrument Panel . . . . . . . . . . . . . 108
Sunglasses . . . . . . . . . . . . . . . . . . . 109
Storage Compartments . . . . . . . . . 108
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 249
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 48
Sunglass Storage . . . . . . . . . . . . . . . 109
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Switches Airbag On-Off . . . . . . . . . . . . . . . . . . . 73
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 293
Infotainment . . . . . . . . . . . . . 176, 470
Noise Control . . . . . . . . . . . . . . . . . 370
Systems Driver Assistance . . . . . . . . . . . . . 290
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 125
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Taillamps
Bulb Replacement . . . . . . . . . . . . 374
Text Telephone (TTY) Users . . . . 460
Theft-Deterrent Systems . . . . . . . . . 40 Immobilizer . . . . . . . . . . . . . . . . . . . . . 40
Throttle, Adjustable . . . . . . . . . . . . . 258
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383 All-Season . . . . . . . . . . . . . . . . . . . . 384
All-Terrain . . . . . . . . . . . . . . . . . . . . 385
Buying New Tires . . . . . . . . . . . . . 401
Chains . . . . . . . . . . . . . . . . . . . . . . . . 405
Changing . . . . . . . . . . . . . . . . . . . . . 408
Designations . . . . . . . . . . . . . . . . . 388
Different Size . . . . . . . . . . . . . . . . . 402
Full-Size Spare . . . . . . . . . . . . . . . 417
If a Tire Goes Flat . . . . . . . . . . . . 406
Inspection . . . . . . . . . . . . . . . . . . . . 397
Low Profile . . . . . . . . . . . . . . . . . . . 385
Messages . . . . . . . . . . . . . . . . . . . . 151
Pressure . . . . . . . . . . . . . . . . . . . . . . 393
Pressure Light . . . . . . . . . . . . . . . . 138
Pressure Monitor Operation . . 394
Pressure Monitor System . . . . . 393
Rotation . . . . . . . . . . . . . . . . . . . . . . 398
Sidewall Labeling . . . . . . . . . . . . . 385
Terminology and Definitions . . 389