Page 384 of 439

Black plate (3,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
Service and Maintenance 11-3
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil on page 10-6.
Once a Month
.Check the tire inflation
pressures. See Tire Pressure on
page 10-48.
.Inspect the tires for wear. See
Tire Inspection on page 10-54.
.Check the windshield washer
fluid level. See Washer Fluid on
page 10-18.
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
last service. Reset the oil life
system when the oil is changed.
See Engine Oil Life System on
page 10-9.
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. See Tire
Rotation on page 10-55.
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil on page 10-6 andEngine Oil
Life System on page 10-9.
.Check engine coolant level. See
Engine Coolant on page 10-13.
.Check windshield washer fluid
level. See Washer Fluid on
page 10-18.
Page 385 of 439

Black plate (4,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
11-4 Service and Maintenance
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. SeeExterior
Care on page 10-81. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-25.
.Check tire inflation pressures.
See Tire Pressure on
page 10-48.
.Inspect tire wear. See Tire
Inspection on page 10-54.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-10.
.Inspect brake system.
.Visually inspect steering,
suspension, and chassis
components for damaged,
loose, or missing parts or signs
of wear at least once a year.
See Exterior Care on
page 10-81. Lubricate the
suspension and steering
components at least every other
oil change. (If equipped with
grease fittings)
.Check restraint system
components. See Safety System
Check on page 3-24.
.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 on page 10-81.
.Check starter switch. See Starter
Switch Check on page 10-24.
.Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check on
page 10-25.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check on
page 10-25.
.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 Sunroof on
page 2-28.
.Verify spare tire key lock
operation and lubricate as
needed. See Tire Changing on
page 10-64.
Page 436 of 439

Black plate (11,1)GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual (GMNA-
Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
INDEX i-11
Start Vehicle, Remote . . . . . . . . . . 2-9
Starter Switch Check . . . . . . . . . 10-24
Starting the Engine . . . . . . . . . . . . 9-22
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4Heated Wheel . . . . . . . . . . . . . . . . . 5-2
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-2
Steering System Messages . . . . 5-46
Steps Power Assist . . . . . . . . . . . . . . . . . 2-18
Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Storage Areas Cargo Cover . . . . . . . . . . . . . . . . . . . 4-3
Center Console . . . . . . . . . . . . . . . . 4-2
Convenience Net . . . . . . . . . . . . . . 4-3
Glove Box . . . . . . . . . . . . . . . . . . . . . 4-1
Instrument Panel . . . . . . . . . . . . . . 4-1
Roof Rack System . . . . . . . . . . . . . 4-4
Sunglasses . . . . . . . . . . . . . . . . . . . . 4-2
Storage Compartments . . . . . . . . . 4-1
Stuck Vehicle . . . . . . . . . . . . . . . . . . 9-13
Sun Visors . . . . . . . . . . . . . . . . . . . . . 2-27
Sunglass Storage . . . . . . . . . . . . . . . 4-2
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . iv System
Active Emergency Braking . . . . 9-60
Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 9-58
Infotainment . . . . . . . . . . . . 7-1, 13-15
Noise Control . . . . . . . . . . . . . . . 10-23
Roof Rack . . . . . . . . . . . . . . . . . . . . . 4-4
Systems Driver Assistance . . . . . . . . . . . . . 9-54
T
Tachometer . . . . . . . . . . . . . . . . . . . . 5-13
Text Telephone (TTY) Users . . . 13-4
Theft-Deterrent Systems . . . . . . . 2-21Immobilizer . . . . . . . . . . . . . . . . . . . 2-21
Third-Row Seats . . . . . . . . . . . . . . . 3-14
Throttle, Adjustable . . . . . . . . . . . . 9-19
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 10-41 All-Season . . . . . . . . . . . . . . . . . . 10-42
All-Terrain . . . . . . . . . . . . . . . . . . 10-43
Buying New Tires . . . . . . . . . . . 10-57
Chains . . . . . . . . . . . . . . . . . . . . . . 10-62
Changing . . . . . . . . . . . . . . . . . . . 10-64
Designations . . . . . . . . . . . . . . . 10-45
Different Size . . . . . . . . . . . . . . . 10-59 Tires (cont'd)
Full-Size Spare . . . . . . . . . . . . . 10-73
If a Tire Goes Flat . . . . . . . . . . 10-62
Inflation Monitor System . . . . 10-51
Inspection . . . . . . . . . . . . . . . . . . 10-54
Low Profile . . . . . . . . . . . . . . . . . 10-43
Messages . . . . . . . . . . . . . . . . . . . . 5-46
Pressure . . . . . . . . . . . . . . . . . . . . 10-50
Pressure Light . . . . . . . . . . . . . . . . 5-27
Pressure Monitor System . . . 10-50
Rotation . . . . . . . . . . . . . . . . . . . . 10-55
Sidewall Labeling . . . . . . . . . . . 10-43
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-46
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-59
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-61
Wheel Replacement . . . . . . . . 10-61
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-56
Winter . . . . . . . . . . . . . . . . . . . . . . 10-42
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-34
Tow/Haul Mode Light . . . . . . . . . . 5-24
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