GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
384 Service and Maintenance
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0222.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel (5.3L Engine) 0277 or
Recommended Fuel (6.2L Engine) 0277.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart. The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather
.Mainly driven in hilly or mountainous
terrain
.Frequently towing a trailer
.Used for high speed or competitive
driving
.Used for taxi, police, or delivery service
Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See Doing Your
Own Service Work 0310.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 315.
Once a Month
.Check the tire inflation pressures,
including the spare. See Tire Pressure
0 344.
.Inspect the tires for wear. See Tire
Inspection 0349.
.Check the windshield washer fluid level.
See Washer Fluid 0324.
Engine Oil Change
When the CHANGE ENGINE OIL SOON
message displays, have the engine oil and
filter changed within the next 1 000 km/
600 mi. If driven under the best conditions,
the engine oil life system may not indicate
the need for vehicle service for up to a year.
The engine oil and filter must be changed at
least once a year and the oil life system
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since the
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
428 Index
Tires (cont'd)Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Pressure Monitor Operation . . . . . . . . . . . 347
Pressure Monitor System . . . . . . . . . . . . . . 346
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 341
Terminology and Definitions . . . . . . . . . . . 342
Uniform Tire Quality Grading . . . . . . . . . . 353
Wheel Alignment and Tire Balance . . . . 354
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 354
When It Is Time for New Tires . . . . . . . . . 351
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 235
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 280
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
General Information . . . . . . . . . . . . . . . . . . . 280
Recreational Vehicle . . . . . . . . . . . . . . . . . . . . 371
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Trailer Sway Control (TSC) . . . . . . . . . . . . . 295
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Trademarks and License Agreements . . . . . 196 Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 295
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Trailer Towing App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Trailering App . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . 317
Transportation Program, Courtesy . . . . . . . 404
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Turn and Lane-Change Signals . . . . . . . . . . . .138
U
Uniform Tire Quality Grading . . . . . . . . . . . . 353
Universal Remote System . . . . . . . . . . . . . . . . . 131
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Using the Navigation System . . . . . . . . . . . . 164
Using the System . . . . . . . . . . . . . . . . . . . . . . . . .145
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Identification Number (VIN) . . . . . . . . . . . . 396
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Personalization . . . . . . . . . . . . . . . . . . . . . . . . 126
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . 126
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . 115
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Vehicle Data Recording and Privacy . . . . . . 408
Vehicle Positioning . . . . . . . . . . . . . . . . . . . . . . . 175
Vehicle Security Steering Column Lock . . . . . . . . . . . . . . . . . . . 27
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . 176
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . 108
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . . 112
