roof GMC ACADIA 2021 Owner's Guide

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Service and Maintenance 347
Air Conditioning Desiccant (Replace Every
Seven Years)
The air conditioning system requires
maintenance every seven years. This service
requires replacement of the desiccant to
help the longevity and efficient operation of
the air conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required Services
Every 12 000 km (7,500 mi)
Rotate the tires, if recommended for the
vehicle, and perform the following services.
SeeTire Rotation 0313.
.Check engine oil level and oil
life percentage. If needed, change engine
oil and filter, and reset oil life system.
See Engine Oil 0276 and
Engine Oil Life System 0278.
.Check the air filter life percentage.
If necessary, replace the engine air filter
and reset the engine air filter life system.
See Engine Air Filter Life System 0279.
.Check engine coolant level. See Cooling
System 0281.
.Check windshield washer fluid level. See
Washer Fluid 0286.
.Check tire inflation pressures. See Tire
Pressure 0307.
.Inspect tire wear. See Tire Inspection
0 313.
.Visually check for fluid leaks.
.Inspect brake system. See Exterior Care
0 337.
.Visually inspect steering, suspension, and
chassis components for damage, including
cracks or tears in the rubber boots, loose
or missing parts, or signs of wear at least
once a year. See Exterior Care0337.
.Inspect power steering for proper
electrical connections, binding, cracks,
chafing, etc.
.Visually inspect halfshafts and driveshafts
for excessive wear, lubricant leaks, and/or
damage including: tube dents or cracks,
constant velocity joint or universal joint
looseness, cracked or missing boots, loose
or missing boot clamps, center bearing
excessive looseness, loose or missing
fasteners, and axle seal leaks.
.Check restraint system components. See
Safety System Check 053.
.Visually inspect fuel system for damage
or leaks.
.Visually inspect exhaust system and
nearby heat shields for loose or damaged
parts.
.Lubricate body components. See Exterior
Care 0337.
.Check parking brake and automatic
transmission park mechanism. See Park
Brake and P (Park) Mechanism Check
0 289.
.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. If the hold
open ability is low, service the gas strut.
See Gas Strut(s) 0291.
.Check tire sealant expiration date,
if equipped. See Tire Sealant and
Compressor Kit 0320.
.Inspect sunroof track and seal,
if equipped. See Sunroof033.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
Index 391
Replacement PartsAirbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Replacing Airbag System . . . . . . . . . . . . . . . . . . 64
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Replacing Seat Belt System Parts after
a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Reporting Safety Defects Canadian Government . . . . . . . . . . . . . . . . . 372
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 372
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . . 371
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Retained Accessory Power (RAP) . . . . . . . . . . 217
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . 28
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Roadside Assistance Program . . . . . . . . . . . . 366
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Roof Rack System . . . . . . . . . . . . . . . . . . . . . . . . . 88
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 362
Running the Vehicle While Parked . . . . . . . 220S
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 372
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 372
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . . 371
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Safety System Check . . . . . . . . . . . . . . . . . . . . . .53
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Scheduling Appointments . . . . . . . . . . . . . . . . 368
Sealant Kit, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
How to Wear Seat Belts Properly . . . . . . . 48
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 50
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Replacing after a Crash . . . . . . . . . . . . . . . . . 53
Use During Pregnancy . . . . . . . . . . . . . . . . . . 52
Seats
Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 37
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 35
Heated and Ventilated Front . . . . . . . . . . . . 41
Heated, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Lumbar Adjustment, Front . . . . . . . . . . . . . . 38
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power Adjustment, Front . . . . . . . . . . . . . . . 37
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 38 Seats (cont'd)
Third Row Seat . . . . . . . . . . . . . . . . . . . . . . . . . 46
Securing Child Restraints . . . . . . . . . . . . . . 78, 80
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Accessories and Modifications . . . . . . . . . 268
Doing Your Own Work . . . . . . . . . . . . . . . . . 269
Maintenance Records . . . . . . . . . . . . . . . . . . 357
Maintenance, General Information . . . . . 345
Parts Identification . . . . . . . . . . . . . . . . . . . . . 358
Scheduling Appointments . . . . . . . . . . . . . . 368
Service Electric Parking Brake Light . . . . . . 109
Services
Special Application . . . . . . . . . . . . . . . . . . . . . 351
Servicing System . . . . . . . . . . . . . . . . . . . . . . . . 162
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . 63
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . 250
Signals, Turn and Lane-Change . . . . . . . . . . . .134
Software Updates . . . . . . . . . . . . . . . . . . . . . . . . 144

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
392 Index
Spare TireCompact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Special Application Services . . . . . . . . . . . . . . . 351
Specifications and Capacities . . . . . . . . . . . . . 359
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . . 13
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . .214
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . . 90
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 90
Steering Wheel Controls . . . . . . . . . . . . . . . . . 140
Stop/Start System . . . . . . . . . . . . . . . . . . . . . . . . 215
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Cargo Management System . . . . . . . . . . . . 85
Center Console . . . . . . . . . . . . . . . . . . . . . . . . . 84
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Roof Rack System . . . . . . . . . . . . . . . . . . . . . . . 88
Sunglasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Storage Compartments . . . . . . . . . . . . . . . . . . . 83 Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . . . . 326
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Sunglass Storage . . . . . . . . . . . . . . . . . . . . . . . . . 83
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
System Engine Air Filter Life . . . . . . . . . . . . . . . . . . . 279
Forward Collision Alert (FCA) . . . . . . . . . . . 245
Global Positioning . . . . . . . . . . . . . . . . . . . . . . 161
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Roof Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 239
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Text Telephone (TTY) Users . . . . . . . . . . . . . . 365
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . 26Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Third-Row Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
All-Terrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 315
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Compact Spare . . . . . . . . . . . . . . . . . . . . . . . . 331
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 316
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 319
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 307, 308
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Pressure Monitor Operation . . . . . . . . . . . 310
Pressure Monitor System . . . . . . . . . . . . . . 309
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Sealant and Compressor Kit . . . . . . . . . . . . 320
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 302
Terminology and Definitions . . . . . . . . . . . 304
Uniform Tire Quality Grading . . . . . . . . . . 316
Wheel Alignment and Tire Balance . . . . 318
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 318
When It Is Time for New Tires . . . . . . . . . 314
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 224