
Black plate (2,1)GMC Sierra Owner Manual - 2011
10-2 Vehicle Care
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-57
Tire Sidewall Labeling . . . . . . 10-58
Tire Designations . . . . . . . . . . . 10-61
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-62
Tire Pressure . . . . . . . . . . . . . . . 10-66
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-67
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-68
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-69
Tire Inspection . . . . . . . . . . . . . . 10-73
Tire Rotation . . . . . . . . . . . . . . . 10-73
Dual Tire Rotation . . . . . . . . . . 10-75
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-76
Buying New Tires . . . . . . . . . . . 10-77
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-79 Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-80
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-81
Wheel Replacement . . . . . . . . 10-82
Tire Chains . . . . . . . . . . . . . . . . . 10-83
If a Tire Goes Flat . . . . . . . . . . 10-84
Tire Changing . . . . . . . . . . . . . . 10-86
Full-Size Spare Tire . . . . . . . . 10-97
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-98
Towing
Towing the Vehicle . . . . . . . . 10-103
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . 10-103
Appearance Care
Exterior Care . . . . . . . . . . . . . . 10-108
Interior Care . . . . . . . . . . . . . . . 10-112
Floor Mats . . . . . . . . . . . . . . . . . 10-116
General Information
For service and parts needs,
visit your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:

Black plate (73,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-73
Tire Inspection
We recommend that you
regularly inspect the vehicle's
tires, including the spare tire,
if the vehicle has one, for signs
of wear or damage at least once
a month.
Always remove the tires if any
of the following statements
are true:
.You can see the indicators at
three or more places around
the tire.
.You can see cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord
or fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 miles).
SeeScheduled Maintenance on
page 11‑2.
The purpose of a regular tire
rotation is to achieve a uniform
wear for all tires on the vehicle.
This will ensure that your vehicle
continues to perform most like it
did when the tires were new.
Any time you notice unusual
wear, rotate your tires as soon
as possible and check wheel
alignment. Also check for
damaged tires or wheels. See
When It Is Time for New
Tires on page 10‑76 andWheel
Replacement on page 10‑82.
If your vehicle has dual rear
wheels, also see Dual Tire
Rotation on page 10‑75.
If your vehicle has single rear
wheels and the tread design for
the front tires is the same as
the rear tires, use the rotation
pattern shown here when
rotating the tires.

Black plate (81,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-81
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.
Temperature –A, B, C
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 performance which all
passenger car tires must meet
under the Federal Motor Safety
Standard No. 109. Grades B
and A represent higher levels of
performance on the laboratory
test wheel than the minimum
required by law. Warning: The
temperature grade for this tire
is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.Wheel Alignment and Tire
Balance
The tires and wheels on the vehicle
were aligned and balanced carefully
at the factory to give the longest tire
life and best overall performance.
Adjustments to wheel alignment and
tire balancing will not be necessary
on a regular basis. However, if there
is unusual tire wear or the vehicle
pulls to one side or the other, the
alignment should be checked. If the
vehicle vibrates when driving on a
smooth road, the tires and wheels
might need to be rebalanced. See
your dealer for proper diagnosis.

Black plate (13,1)GMC Sierra Owner Manual - 2011
INDEX i-13
T
Tachometer . . . . . . . . . . . . . . . . . . . . 5-15
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Taillamps . . . . . . . . . . . . . . . . . . . . . 10-46Bulb Replacement . . . . . . . . . . 10-46
Text Telephone (TTY) Users . . . 13-6
Theft-Deterrent Systems . . . . . . . 2-13 Immobilizer . . . . . . . . . . . . . . . . . . . 2-13
Throttle, Adjustable . . . . . . . . . . . . 9-35
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Tires Buying New Tires . . . . . . . . . . . 10-77
Chains . . . . . . . . . . . . . . . . . . . . . . 10-83
Changing . . . . . . . . . . . . . . . . . . . 10-86
Designations . . . . . . . . . . . . . . . 10-61
Different Size . . . . . . . . . . . . . . . 10-79
Dual Rotation . . . . . . . . . . . . . . . 10-75
Full-Size Spare . . . . . . . . . . . . . 10-97
If a Tire Goes Flat . . . . . . . . . . 10-84
Inflation Monitor System . . . . 10-69
Inspection . . . . . . . . . . . . . . . . . . 10-73
Messages . . . . . . . . . . . . . . . . . . . . 5-49 Tires (cont.)
Pressure . . . . . . . . . . . . . . . . . . . . 10-67
Pressure Light . . . . . . . . . . . . . . . . 5-30
Pressure Monitor System . . . 10-68
Rotation . . . . . . . . . . . . . . . . . . . . 10-73
Sidewall Labeling . . . . . . . . . . . 10-58
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-62
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-80
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-81
Wheel Replacement . . . . . . . . 10-82
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-76
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-51
Tow/Haul Mode Light . . . . . . . . . . 5-29
Towing Driving Characteristics . . . . . . . . 9-91
Equipment . . . . . . . . . . . . . . . . . . .9-112
General Information . . . . . . . . . . 9-90
Recreational Vehicle . . . . . . . 10-103 Towing (cont.)
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-95
Trailer Sway
Control (TSC) . . . . . . . . . . . . . 9-124
Vehicle . . . . . . . . . . . . . . . . . . . . 10-103
Trailer Sway Control (TSC) . . . . . . . . 9-124
Tow Mirrors . . . . . . . . . . . . . . . . . . . 2-15
Trailer Towing . . . . . . . . . . . . . . . . . 9-95
Transfer Case . . . . . . . . . . . . . . . . . 9-54
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 9-46
Fluid, Automatic . . . . . 10-13, 10-16
Messages . . . . . . . . . . . . . . . . . . . . 5-50
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . 13-11
Trip Odometer . . . . . . . . . . . . . . . . . 5-14
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . 9-32
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Turn Signal Bulb Replacement . . . . . . . . . . 10-46

Black plate (14,1)GMC Sierra Owner Manual - 2011
i-14 INDEX
U
Ultrasonic Parking Assist . . . . . . 9-76
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-80
Universal Remote System . . . . . 5-61 Operation . . . . . . . . . . . . . . . . . . . . . 5-67
Programming . . . . . . . . . . . . . . . . . 5-61
Using this Manual . . . . . . . . . . . . . . . . iv
V
Vehicle Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-25
Messages . . . . . . . . . . . . . . . . . . . . 5-41
Personalization . . . . . . . . . . . . . . . 5-52
Reminder Messages . . . . . . . . . . 5-50
Remote Start . . . . . . . . . . . . . . . . . . 2-5
Security . . . . . . . . . . . . . . . . . . . . . . 2-12
Towing . . . . . . . . . . . . . . . . . . . . . 10-103 Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . 10-66
Vehicle Identification Service Parts IdentificationLabel . . . . . . . . . . . . . . . . . . . . . . . . 12-1
Ventilation, Air . . . . . . . . . . . . . . . . . 8-11
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Voltmeter Gauge . . . . . . . . . . . . . . 5-18
W
Warning Brake System Light . . . . . . . . . . . 5-27
Warning Lights, Gauges,
and Indicators . . . . . . . . . . . . . . . . 5-12
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 6-5
Washer Fluid . . . . . . . . . . . . . . . . . 10-29
Washer Fluid Messages . . . . . . . 5-51 Wheels
Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-81
Different Size . . . . . . . . . . . . . . . 10-79
Replacement . . . . . . . . . . . . . . . 10-82
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-76
Where to Put the Restraint . . . . 3-56
Windows . . . . . . . . . . . . . . . . . . . . . . 2-18 Manual . . . . . . . . . . . . . . . . . . . . . . . 2-19
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Windshield Wiper/Washer . . . . . . . . . . . . . . . . . 5-5
Winter Driving . . . . . . . . . . . . . . . . . 9-21
Wiper Blade Replacement . . . . 10-41