traction control GMC YUKON XL 2018 Owner's Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
338 Vehicle Care (NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards. Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example: Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the norm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.
Traction
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
340 Vehicle Care CautionThe wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
Used Replacement Wheels
{ WarningReplacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel. Tire Chains
{ WarningIf the vehicle has 265/65R18,
P265/65R18, P275/55R20,
or P285/45R22 size tires, do not
use tire chains. There is not
enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
tire chains could cause loss of
control and a crash.
Use another type of traction
device only if its manufacturer
recommends it for the vehicle's
tire size combination and road
conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive slow
and readjust or remove the
traction device if it is contacting
the vehicle. Do not spin the
wheels.
(Continued) Warning (Continued) If traction devices are used, install
them on the rear tires.
CautionIf the vehicle has P255/70R17 or
P265/70R17 size tires, use tire
chains only where legal and only
when necessary. Use chains that
are the proper size for the tires.
Install them on the rear tires only.
Do not use chains on the front
tires. Tighten them as tightly as
possible with the ends securely
fastened. Drive slowly and follow
the chain manufacturer's
instructions. If the chains contact
the vehicle, stop and retighten
them. If the contact continues,
slow down until it stops. Driving
too fast or spinning the wheels
with chains on will damage the
vehicle.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
414 Index Check (cont'd)
Ignition Transmission Lock . . . 303
Child Restraints
Infants and Young Children . . . . . 98
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . 104
Older Children . . . . . . . . . . . . . . . . . . 97
Securing . . . . . . . . . . . . . . . . . .112, 114
Systems . . . . . . . . . . . . . . . . . . . . . . 101
Child-View Mirror . . . . . . . . . . . . . . . . 56
Circuit Breakers . . . . . . . . . . . . . . . . 309
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 360
Interior Care . . . . . . . . . . . . . . . . . . 364
Climate Control Systems
Dual Automatic . . . . . . . . . . . . . . . 180
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Cluster, Instrument . . . . . . . . . . . . . 133
Collision Damage Repair . . . . . . . 393
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . .118
Compass . . . . . . . . . . . . . . . . . . . . . . . 126
Connections
OnStar . . . . . . . . . . . . . . . . . . . . . . . 403
Control
Hill Descent . . . . . . . . . . . . . . . . . . 231 Control (cont'd)
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 229
Control of a Vehicle . . . . . . . . . . . . . 190
Convenience Net . . . . . . . . . . . . . . . 120
Convex Mirrors . . . . . . . . . . . . . . . . . . 52
Coolant
Engine Temperature Gauge . . 138
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 148
Cooling . . . . . . . . . . . . . . . . . . . . 180, 184
Cooling System . . . . . . . . . . . . . . . . . 291
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 392
Cruise Control . . . . . . . . . . . . . . . . . . 233
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Cruise Control, Adaptive . . . . . . . . 235
Cupholders . . . . . . . . . . . . . . . . . . . . . 118
Customer Assistance . . . . . . . . . . . 389
Offices . . . . . . . . . . . . . . . . . . . . . . . . 388
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 389
Customer Information
Service Publications
Ordering Information . . . . . . . . 395
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 386 D Damage Repair, Collision . . . . . . . 393
Danger, Warning, and Caution . . . . 2
Data Collection
Infotainment System . . . . . . . . . . 399
OnStar . . . . . . . . . . . . . . . . . . . . . . . 399
Data Recorders, Event . . . . . . . . . 398
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 173
Defensive Driving . . . . . . . . . . . . . . . 190
Delayed Locking . . . . . . . . . . . . . . . . . 42
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 405
Distracted Driving . . . . . . . . . . . . . . . 189
Dome Lamps . . . . . . . . . . . . . . . . . . . 176
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 150
Delayed Locking . . . . . . . . . . . . . . . . 42
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Locks . . . . . . . . . . . . . . . . . . . . 42
Drive Belt Routing, Engine . . . . . . 385
Driver Assistance Systems . . . . . 242
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 151
Driving
Assistance Systems . . . . . . . . . . 246
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 259

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
418 Index Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
Four-Wheel-Drive . . . . . . . . . . . . . 146
Front Fog Lamp . . . . . . . . . . . . . . 150
High-Beam On . . . . . . . . . . . . . . . . 149
High/Low Beam Changer . . . . . 172
Lane Keep Assist . . . . . . . . . . . . . 146
Low Fuel Warning . . . . . . . . . . . . 149
Seat Belt Reminders . . . . . . . . . . 140
Security . . . . . . . . . . . . . . . . . . . . . . 149
StabiliTrak OFF . . . . . . . . . . . . . . . 147
Tire Pressure . . . . . . . . . . . . . . . . . 148
Tow/Haul Mode . . . . . . . . . . . . . . . 146
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 147
Traction Off . . . . . . . . . . . . . . . . . . . 147
Locking Rear Axle . . . . . . . . . . . . . . 232
Locks
Automatic Door . . . . . . . . . . . . . . . . . 42
Delayed Locking . . . . . . . . . . . . . . . . 42
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . . 42
Power Door . . . . . . . . . . . . . . . . . . . . . 42
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Loss of Control . . . . . . . . . . . . . . . . . 192
Low Fuel Warning Light . . . . . . . . . 149
Low-Profile Tires . . . . . . . . . . . . . . . . 322 Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 104
Lumbar Adjustment . . . . . . . . . . . . . . 63
Front Seats . . . . . . . . . . . . . . . . . . . . . 63
M Magnetic Ride Control . . . . . . . . . . 232
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 382
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 376
Maintenance Schedule . . . . . . . . . 370
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 379
Transfer Case . . . . . . . . . . . . . . . . 222
Malfunction Indicator Lamp . . . . . 143
Manual Mode . . . . . . . . . . . . . . . . . . . 218
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 64
Messages
Engine Power . . . . . . . . . . . . . . . . 158
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 157
Vehicle Speed . . . . . . . . . . . . . . . . 158
Mirror
Child-View . . . . . . . . . . . . . . . . . . . . . . 56
Mirrors
Automatic Dimming . . . . . . . . . . . . . 54 Mirrors (cont'd)
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 56
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 54
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 52
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 54
Manual Rearview . . . . . . . . . . . . . . . 55
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Tilt in Reverse . . . . . . . . . . . . . . . . . . 55
Mirrors, Interior Rearview . . . . . . . . 55
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 329
N Navigation
OnStar . . . . . . . . . . . . . . . . . . . . . . . 402
Net, Convenience . . . . . . . . . . . . . . 120
New Vehicle Break-In . . . . . . . . . . . 204
Noise Control System . . . . . . . . . . 301
O Odometer . . . . . . . . . . . . . . . . . . . . . . . 136
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 192
Driving . . . . . . . . . . . . . . . . . . . . . . . . 192
Recovery . . . . . . . . . . . . . . . . . . . . . 191
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 283

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
422 Index Tires (cont'd)
Rotation . . . . . . . . . . . . . . . . . . . . . . 334
Sidewall Labeling . . . . . . . . . . . . . 322
Terminology and Definitions . . 324
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 337
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 339
Wheel Replacement . . . . . . . . . . 339
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 335
Winter . . . . . . . . . . . . . . . . . . . . . . . . 321
Tow/Haul Mode . . . . . . . . . . . . . . . . . 222
Tow/Haul Mode Light . . . . . . . . . . . 146
Towing
Driving Characteristics . . . . . . . . 259
Equipment . . . . . . . . . . . . . . . . . . . . 267
General Information . . . . . . . . . . 259
Recreational Vehicle . . . . . . . . . . 355
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 262
Trailer Sway Control (TSC) . . . 273
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 355
Traction
Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 147
Off Light . . . . . . . . . . . . . . . . . . . . . . 147
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . 229 Trailer
Sway Control (TSC) . . . . . . . . . . 273
Towing . . . . . . . . . . . . . . . . . . . . . . . . 262
Transfer Case . . . . . . . . . . . . . . . . . . 222
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 216
Fluid, Automatic . . . . . . . . . 286, 289
Temperature Gauge . . . . . . . . . . 139
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 392
Trip Odometer . . . . . . . . . . . . . . . . . . 136
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 174
U Uniform Tire Quality Grading . . . 337
Universal Remote System . . . . . . 166
Operation . . . . . . . . . . . . . . . . . . . . . 168
Programming . . . . . . . . . . . . . . . . . 166
Using This Manual . . . . . . . . . . . . . . . . 2
V Vehicle
Alarm System . . . . . . . . . . . . . . . . . . 49
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 190
Identification Number (VIN) . . . 383
Load Limits . . . . . . . . . . . . . . . . . . . 200
Messages . . . . . . . . . . . . . . . . . . . . 157 Vehicle (cont'd)
Personalization . . . . . . . . . . . . . . . 158
Remote Start . . . . . . . . . . . . . . . . . . . 39
Security . . . . . . . . . . . . . . . . . . . . . . . . 49
Speed Messages . . . . . . . . . . . . . 158
Towing . . . . . . . . . . . . . . . . . . . . . . . . 355
Vehicle Ahead Indicator . . . . . . . . 146
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 327
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . . . 398
Ventilation, Air . . . . . . . . . . . . . . . . . . 185
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Voltmeter Gauge . . . . . . . . . . . . . . . 140
W Warning
Brake System Light . . . . . . . . . . . 145
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 252
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . . 132
Warnings
Hazard Flashers . . . . . . . . . . . . . . 174
Washer Fluid . . . . . . . . . . . . . . . . . . . 296
Wheels
Alignment and Tire Balance . . 339
Different Size . . . . . . . . . . . . . . . . . 337
Replacement . . . . . . . . . . . . . . . . . 339