2018 GMC YUKON XL service indicator

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
378 Service and Maintenance of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
.
Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
.
Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For information on how to clean and
protect the vehicle ’ s interior and
exterior, see Interior Care 0 364 and
Exterior Care 0 360 .
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
.
Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
.
Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
.
Signs of damage include
scratches, cracks, and chips.
.
Trained dealer technicians can
inspect the windshield and
recommend proper replacement
if needed. Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
.
Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
.
Trained dealer technicians can
check the wiper blades and
replace them when needed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
416 Index Folding Mirrors . . . . . . . . . . . . . . . . . . 53
Forward Automatic Braking . . . . . 248
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 246
Four-Wheel Drive . . . . . . . . . . 222, 299
Four-Wheel-Drive Light . . . . . . . . . 146
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 396
Front Axle . . . . . . . . . . . . . . . . . . . . . . 300
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Front Seats
Heated and Ventilated . . . . . . . . . . 67
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Additives . . . . . . . . . . . . . . . . . . . . . 255
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 258
Filling the Tank . . . . . . . . . . . . . . . 256
Foreign Countries . . . . . . . . . . . . 255
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 137
Low Fuel Warning Light . . . . . . . 149
Management, Active . . . . . . . . . . 214
Requirements, California . . . . . 255
Full-Size Spare Tire . . . . . . . . . . . . 350
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 310 Fuses (cont'd)
Fuses and Circuit Breakers . . . 309
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 314, 317
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 319
G Garage Door Opener . . . . . . . . . . . 166
Programming . . . . . . . . . . . . . . . . . 166
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 305
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 138
Engine Oil Pressure . . . . . . . . . . 137
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Odometer . . . . . . . . . . . . . . . . . . . . . 136
Speedometer . . . . . . . . . . . . . . . . . 136
Tachometer . . . . . . . . . . . . . . . . . . . 136
Transmission Temperature . . . . 139
Trip Odometer . . . . . . . . . . . . . . . . 136
Voltmeter . . . . . . . . . . . . . . . . . . . . . 140
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 132
General Information
Service and Maintenance . . . . . 369
Towing . . . . . . . . . . . . . . . . . . . . . . . . 259
Vehicle Care . . . . . . . . . . . . . . . . . . 277
Glass Replacement . . . . . . . . . . . . . 304 Glove Box . . . . . . . . . . . . . . . . . . . . . . 118
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 390
H Hazard Warning Flashers . . . . . . . 174
Head Restraints . . . . . . . . . . . . . . . . . 61
Head-up Display . . . . . . . . . . . . . . . . 154
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 306
Automatic . . . . . . . . . . . . . . . . . . . . . 173
Bulb Replacement . . . . . . . . . . . . 306
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 173
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 306
High-Beam On Light . . . . . . . . . . 149
High/Low Beam Changer . . . . . 172
Lamps On Reminder . . . . . . . . . 150
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . 69
Steering Wheel . . . . . . . . . . . . . . . 123
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heated Mirrors . . . . . . . . . . . . . . . . . . . 54
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 210
Heating . . . . . . . . . . . . . . . . . . . . 180, 184

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Index 419Oil (cont'd)
Engine Oil Life System . . . . . . . 285
Engine Oil Pressure Gauge . . . 137
Pressure Light . . . . . . . . . . . . . . . . 149
Older Children, Restraints . . . . . . . 97
Online Owner Center . . . . . . . . . . . 389
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 399
OnStar Additional
Information . . . . . . . . . . . . . . . . . . . . 406
OnStar Connections . . . . . . . . . . . . 403
OnStar Diagnostics . . . . . . . . . . . . . 405
OnStar Emergency . . . . . . . . . . . . . 401
OnStar Navigation . . . . . . . . . . . . . . 402
OnStar Overview . . . . . . . . . . . . . . . 400
OnStar Security . . . . . . . . . . . . . . . . 402
Operation
Fog Lamps . . . . . . . . . . . . . . . . . . . 175
Ordering
Service Publications . . . . . . . . . . 395
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . 127
Overheating, Engine . . . . . . . . . . . . 294
P Park
Shifting Into . . . . . . . . . . . . . . . . . . . 212
Shifting Out of . . . . . . . . . . . . . . . . 213
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 228 Parking (cont'd)
Brake and P (Park)
Mechanism Check . . . . . . . . . . 303
Extended . . . . . . . . . . . . . . . . . . . . . 214
Over Things That Burn . . . . . . . 214
Parking Assist . . . . . . . . . . . . . . . . . . 243
Parking or Backing
Assistance Systems . . . . . . . . . . 243
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 142
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Passenger Sensing System . . . . . 91
Perchlorate Materials
Requirements, California . . . . . . 278
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 158
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 42
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Outlets . . . . . . . . . . . . . . . . . . . . . . . 127
Protection, Battery . . . . . . . . . . . . 178
Retained Accessory (RAP) . . . 212
Seat Adjustment . . . . . . . . . . . . . . . . 62
Windows . . . . . . . . . . . . . . . . . . . . . . . 56
Power Assist Steps . . . . . . . . . . . . . . 48
Pregnancy, Using Seat Belts . . . . 82 Privacy
Vehicle Data Recording . . . . . . . 398
Program
Courtesy Transportation . . . . . . 392
Proposition
65 Warning,
California . . . . . . . . . . . .277, 298, 351,
Back Cover
R Radio Frequency Statement . . . . 396
Reading Lamps . . . . . . . . . . . . . . . . . 176
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 300
Locking . . . . . . . . . . . . . . . . . . . . . . . 232
Rear Climate Control System . . . 184
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 68
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 69
Rear Storage . . . . . . . . . . . . . . . . . . . 119
Rear Vision Camera (RVC) . . . . . 243
Rear Window Washer/Wiper . . . . 125
Rearview Mirrors . . . . . . . . . . . . . . . . 55
Automatic Dimming . . . . . . . . . . . . . 56
Reclining Seatbacks . . . . . . . . . . . . . 63
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 379
Records
Maintenance . . . . . . . . . . . . . . . . . . 382
Recreational Vehicle Towing . . . . 355