2018 GMC TERRAIN traction control

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
316 Vehicle Care
GM strongly recommends
buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of the
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all-season tread
design, the TPC Spec number
will be followed by MS for mud
and snow. SeeTire Sidewall
Labeling 0302.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires
will help to maintain the
performance of the vehicle.
Braking and handling
performance may be adversely affected if all the tires are not
replaced at the same time.
If proper rotation and
maintenance have been done,
all four tires should wear out at
about the same time. See
Tire
Rotation 0314. However, if it is
necessary to replace only one
axle set of worn tires, place the
new tires on the rear axle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, Y and ZR speed rated
tires. Never exceed the winter
tires’ maximum speed capability
when using winter tires with a
lower speed rating.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
(Continued)
Warning (Continued)
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
(Continued)

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Vehicle Care 317
Warning (Continued)
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
System 0309.
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See Vehicle Load Limits
0 181.Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
(Continued)
Warning (Continued)
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0315 and
Accessories and Modifications
0 261.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(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,

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
318 Vehicle Care
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 onspecified 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
to the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained
high temperature can cause the
material of the tire to degenerate
and reduce tire life, and
excessive temperature can lead
to sudden tire failure. The grade
C corresponds to a level of

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
320 Vehicle Care
Used Replacement Wheels
{Warning
Replacing 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
{Warning
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.(Continued)
Warning (Continued)
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 contacts the
vehicle. Do not spin the wheels.
If traction devices are used, install
them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. See Tires
0 300. If air goes out of a tire, it is
much more likely to leak out slowly.
But if there is ever a blowout, here
are a few tips about what to expect
and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized
(Continued)

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
334 Vehicle Care
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a
crash and you or others could be
injured. Use only one compact
spare tire at a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure
regularly. It should be 420 kPa
(60 psi).
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only.
The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the AWD (if equipped), ABS, and
Traction Control systems may
engage until the spare tire is
recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.
Do not use the compact spare on
other vehicles. Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage
the vehicle and the chains. Do not
use tire chains on the compact
spare.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Index 397
Climate Control Systems (cont'd)Heating . . . . . . . . . . . . . . . . . . . . . . . 160
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Cluster, Instrument . . . . . . . . . . . . . 119
Cold Weather Operation . . . . . . . . 242
Collision Damage Repair . . . . . . . 376
Compact Spare Tire . . . . . . . . . . . . 334
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 106
Compass . . . . . . . . . . . . . . . . . . . . . . . 113
Compressor Kit, Tire Sealant . . . 322
Connections OnStar . . . . . . . . . . . . . . . . . . . . . . . 386
Control
Hill Descent . . . . . . . . . . . . . . . . . . 216
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 213
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 131
Control of a Vehicle . . . . . . . . . . . . . 171
Convenience Net . . . . . . . . . . . . . . . 108
Convex Mirrors . . . . . . . . . . . . . . . . . . 49
Coolant Engine Temperature Gauge . . 124
Cooling . . . . . . . . . . . . . . . . . . . . 160, 162
Cooling System . . . . . . . . . . . . . . . . . 276
Courtesy Lamps . . . . . . . . . . . . . . . . 156 Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 375
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 107
Cruise Control . . . . . . . . . . . . . . . . . . 220 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Cupholders . . . . . . . . . . . . . . . . . . . . . 106
Customer Assistance . . . . . . . . . . . 372
Offices . . . . . . . . . . . . . . . . . . . . . . . . 371
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 372
Customer Information Service PublicationsOrdering Information . . . . . . . . 378
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 369
D
Damage Repair, Collision . . . . . . . 376
Danger, Warning, and Caution . . . . 3
Data Collection
Infotainment System . . . . . . . . . . 382
OnStar . . . . . . . . . . . . . . . . . . . . . . . 382
Data Recorders, Event . . . . . . . . . 381
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 153
Defensive Driving . . . . . . . . . . . . . . . 171
Delayed Locking . . . . . . . . . . . . . . . . . 39 Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 388
Diesel Exhaust Fluid . . . . . . . . 27, 198
Diesel Exhaust Fluid (DEF) Warning Light . . . . . . . . . . . . . . . . . 134
Diesel Particulate Filter . . . . . . . . . 197
Distracted Driving . . . . . . . . . . . . . . . 170
Dome Lamps . . . . . . . . . . . . . . . . . . . 156
Door Delayed Locking . . . . . . . . . . . . . . . . 39
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Locks . . . . . . . . . . . . . . . . . . . . 39
Drive Belt Routing, Engine . . . . . . 368
Drive Systems All-Wheel Drive . . . . . . . . . . 209, 285
Driver Assistance Systems . . . . . 222
Driver Behavior . . . . . . . . . . . . . . . . . 169
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 136
Driver Mode Control . . . . . . . . . . . . 216
Driving Assistance Systems . . . . . . . . . . 228
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 251
Defensive . . . . . . . . . . . . . . . . . . . . . 171
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 171
Environment . . . . . . . . . . . . . . . . . . 170
For Better Fuel Economy . . . . . . . 26

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Index 401
Lights (cont'd)Hill Descent Control . . . . . . . . . . 131
Lane Keep Assist . . . . . . . . . . . . . 131
Low Fuel Warning . . . . . . . . . . . . 134
Seat Belt Reminders . . . . . . . . . . 125
Security . . . . . . . . . . . . . . . . . . . . . . 135
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 130
StabiliTrak OFF . . . . . . . . . . . . . . . 132
Tire Pressure . . . . . . . . . . . . . . . . . 133
Tow/Haul Mode . . . . . . . . . . . . . . . 131
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 132
Traction Off . . . . . . . . . . . . . . . . . . . 132
Wait to Start . . . . . . . . . . . . . . . . . . 133
Locks Automatic Door . . . . . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . . 39
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Lockout Protection . . . . . . . . . . . . . . 40
Power Door . . . . . . . . . . . . . . . . . . . . . 39
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Loss of Control . . . . . . . . . . . . . . . . . 173
Low Fuel Warning Light . . . . . . . . . 134
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 95 Lumbar Adjustment . . . . . . . . . . . . . . 59
Front Seats . . . . . . . . . . . . . . . . . . . . . 59
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 364
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 358
Maintenance Schedule . . . . . . . . . 353 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 361
Malfunction Indicator Lamp . . . . . 127
Manual Mode . . . . . . . . . . . . . . . . . . . 208
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 60
Messages Engine Power . . . . . . . . . . . . . . . . 142
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 141
Vehicle Speed . . . . . . . . . . . . . . . . 142
Mirrors Automatic Dimming . . . . . . . . . . . . . 50
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 50
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 49
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 49
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 49
Manual Rearview . . . . . . . . . . . . . . . 50
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Mirrors (cont'd)
Tilt in Reverse . . . . . . . . . . . . . . . . . . 50
Mirrors, Interior Rearview . . . . . . . . 50
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Driver Control . . . . . . . . . . . . . . . . . 216
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 309
N
NavigationOnStar . . . . . . . . . . . . . . . . . . . . . . . 385
Net, Convenience . . . . . . . . . . . . . . 108
New Vehicle Break-In . . . . . . . . . . . 185
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 123 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 174 Driving . . . . . . . . . . . . . . . . . . . . . . . . 174
Recovery . . . . . . . . . . . . . . . . . . . . . 173
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 269
Engine Oil Life System . . . . . . . 273
Pressure Light . . . . . . . . . . . . . . . . 133
Older Children, Restraints . . . . . . . 88
Online Owner Center . . . . . . . . . . . 372
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 382
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 389

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-10664916) - 2018 - crc - 9/15/17
Index 405
Tires (cont'd)Winter . . . . . . . . . . . . . . . . . . . . . . . . 301
Tow/Haul Mode . . . . . . . . . . . . . . . . . 209
Tow/Haul Mode Light . . . . . . . . . . . 131
Towing Driving Characteristics . . . . . . . . 251
Equipment . . . . . . . . . . . . . . . . . . . . 256
General Information . . . . . . . . . . 251
Recreational Vehicle . . . . . . . . . . 339
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 254
Trailer Sway Control (TSC) . . . 257
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 337
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 132
Off Light . . . . . . . . . . . . . . . . . . . . . . 132
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 213
Trailer Sway Control (TSC) . . . . . . . . . . 257
Towing . . . . . . . . . . . . . . . . . . . . . . . . 254
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 204
Fluid, Automatic . . . . . . . . . . . . . . 274
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 375 Trip Odometer . . . . . . . . . . . . . . . . . . 123
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 155
U
Uniform Tire Quality Grading . . . 317
Universal Remote System . . . . . . 147Operation . . . . . . . . . . . . . . . . . . . . . 150
Programming . . . . . . . . . . . . . . . . . 147
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 46
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 171
Design . . . . . . . . . . . . . . . . . . . . . . . . 170
Identification Number (VIN) . . . 365
Load Limits . . . . . . . . . . . . . . . . . . . 181
Messages . . . . . . . . . . . . . . . . . . . . 141
Personalization . . . . . . . . . . . . . . . 142
Remote Start . . . . . . . . . . . . . . . . . . . 35
Security . . . . . . . . . . . . . . . . . . . . . . . . 46
Speed Messages . . . . . . . . . . . . . 142
Towing . . . . . . . . . . . . . . . . . . . . . . . . 337
Vehicle Ahead Indicator . . . . . . . . 132 Vehicle Care
Storing the Tire Sealant
and Compressor Kit . . . . . . . . . 328
Tire Pressure . . . . . . . . . . . . . . . . . 307
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 381
Ventilation, Air . . . . . . . . . . . . . . . . . . 165
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
W
Wait to Start Light . . . . . . . . . . . . . . 133
Warning
Brake System Light . . . . . . . . . . . 129
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 234
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 118
Warnings Hazard Flashers . . . . . . . . . . . . . . 154
Washer Fluid . . . . . . . . . . . . . . . . . . . 282
Water in Fuel . . . . . . . . . . . . . . . . . . . 243
What Fuel to Use in Canada and Mexico . . . . . . . . . . . . . . . . . . . . 240
What Fuel to Use in the U.S. . . . 239
Wheels Alignment and Tire Balance . . 319
Different Size . . . . . . . . . . . . . . . . . 317