2010 GMC TERRAIN winter tires

8-20 Driving and Operating
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the
road, creating less traction or grip.
Wet ice can occur at about 0°C
(32°F) when freezing rain begins to
fall, resulting in even less traction.
Avoid driving on wet ice or in
freezing rain until roads can be
treated with salt or sand.
Drive with caution, whatever the
condition. Accelerate gently so
traction is not lost. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick, so there is even less
traction.
Try not to break the fragile traction.
If you accelerate too fast, the drive
wheels will spin and polish the
surface under the tires even more.The
Antilock Brake System (ABS)
on page 8‑39improves vehicle
stability during hard stops on
slippery roads, but apply the brakes
sooner than when on dry pavement.
Allow greater following distance on
any slippery road and watch for
slippery spots. Icy patches can
occur on otherwise clear roads in
shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice.
Turn off cruise control, if equipped,
on slippery surfaces.Blizzard Conditions
Being stuck in snow can be in a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use the Roadside
Assistance Program
on page 12‑6.
To get help and keep everyone in
the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside
mirror.
{WARNING
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
(Continued)

Vehicle Care 9-63
The Uniform Tire Quality
Grading (UTQG) system does
not apply to deep tread,
winter-type snow tires,
space-saver, or temporary use
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.
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
a 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
–AA, A, B, C
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.

i-2 INDEX
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . 9-25Jump Starting . . . . . . . . . . . . . . . . . 9-78
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 4-29
Blade Replacement, Wiper . . . . 9-28
Bluetooth . . . . 6-41, 6-42, 6-45, 6-56
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . 9-23 Antilock . . . . . . . . . . . . . . . . . . . . . . . 8-39
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24
Parking . . . . . . . . . . . . . . . . . . . . . . . 8-40
System Messages . . . . . . . . . . . . 4-30
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Break-In, New Vehicle . . . . . . . . . 8-27
Bulb Replacement . . . . . . . . . . . . . 9-38 Fog Lamps . . . . . . . . . . . . . . 5-3, 9-34
Headlamp Aiming . . . . . . . . . . . . . 9-30
Headlamps . . . . . . . . . . . . . . . . . . . 9-32
Headlamps, Front TurnSignal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 9-33 Bulb Replacement (cont.)
License Plate Lamps . . . . . . . . . 9-37
Taillamps, Turn Signal,
Sidemarker, Stoplamps,
and Backup Lamps . . . . . . . . . . 9-34
Buying New Tires . . . . . . . . . . . . . . 9-60
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 4-9
California Fuel Requirements . . . . . . . . . . . 8-55
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . . 9-3
Warning . . . . . . . . . . . . . . . . . . . . . . . 9-3
Camera, Rear Vision . . . . . . . . . . 8-50
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 11-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 8-34
Liftgate . . . . . . . . . . . . . . . . . . . 1-8, 1-9
Winter Driving . . . . . . . . . . . . . . . . 8-20 Cargo
Tie Downs . . . . . . . . . . . . . . . . . . . . . 3-2
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD DVD Player . . . . . . . . . . . . . . . . . . . 6-21
CD Player . . . . . . . . . . . . . . . . . . . . . 6-18
Center Console Storage . . . . . . . . 3-1
Chains, Tire . . . . . . . . . . . . . . . . . . . 9-66
Charging System Light . . . . . . . . 4-16
Check
Engine Lamp . . . . . . . . . . . . . . . . . 4-17
Ignition Transmission Lock . . . 9-27
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 2-43
Lower Anchors and Tethers for Children . . . . . . . . . 2-49
Older Children . . . . . . . . . . . . . . . . 2-41
Securing . . . . . . . . . . . . . . . . 2-56, 2-58
Systems . . . . . . . . . . . . . . . . . . . . . . 2-46
Where to Put the Restraint . . . 2-47

i-12 INDEX
TransmissionAutomatic . . . . . . . . . . . . . . . . . . . . . 8-35
Fluid, Automatic . . . . . . . . . . . . . . 9-13
Messages . . . . . . . . . . . . . . . . . . . . 4-35
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . 12-8
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Turn Signal Bulb Replacement . . . . . . . . . . . . 9-34
U
Ultrasonic Parking Assist . . . . . . 8-47
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . . 9-62
Using this Manual . . . . . . . . . . . . . . . . iv
V
Vehicle Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Load Limits . . . . . . . . . . . . . . . . . . . 8-22
Messages . . . . . . . . . . . . . . . . . . . . 4-29
Personalization . . . . . . . . . . . . . . . 4-36
Remote Start . . . . . . . . . . . . . . . . . . 1-5
Security . . . . . . . . . . . . . . . . . . . . . . 1-13
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-81
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 9-52
Vehicle Identification Number (VIN) . . . . . . . . . . . . . . . . . 11-1
Service Parts IdentificationLabel . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Vehicle Reminder Messages . . . . . . . . . . . . . . . . . . . . 4-36
Ventilation, Air . . . . . . . . . . . . . . . . . . 7-6
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
W
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . 4-11
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 5-3
Washer Fluid . . . . . . . . . . . . . . . . . . 9-22
Washer Fluid Messages . . . . . . . 4-36
Wheels
Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . 9-64
Different Size . . . . . . . . . . . . . . . . . 9-62
Replacement . . . . . . . . . . . . . . . . . 9-65
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . 9-59
Where to Put the Child
Restraint . . . . . . . . . . . . . . . . . . . . . 2-47
Windows . . . . . . . . . . . . . . . . . . . . . . 1-16 Power . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Windshield
Wiper/Washer . . . . . . . . . . . . . . . . . 4-7
Winter Driving . . . . . . . . . . . . . . . . . 8-20
Wiper Blade Replacement . . . . . 9-28
Wipers Rear Washer . . . . . . . . . . . . . . . . . . 4-8