2013 GMC SIERRA wheel alignment

Black plate (2,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-2 Vehicle Care
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-46
All-Season Tires . . . . . . . . . . . . 10-47
Winter Tires . . . . . . . . . . . . . . . . 10-48
Summer Tires . . . . . . . . . . . . . . 10-48
Tire Sidewall Labeling . . . . . . 10-48
Tire Designations . . . . . . . . . . . 10-51
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-52
Tire Pressure . . . . . . . . . . . . . . . 10-55
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-56
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-57
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-58
Tire Inspection . . . . . . . . . . . . . . 10-61
Tire Rotation . . . . . . . . . . . . . . . 10-61
Dual Tire Rotation . . . . . . . . . . 10-63
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-64
Buying New Tires . . . . . . . . . . . 10-65
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-66 Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-67
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-68
Wheel Replacement . . . . . . . . 10-69
Tire Chains . . . . . . . . . . . . . . . . . 10-70
If a Tire Goes Flat . . . . . . . . . . 10-70
Tire Changing . . . . . . . . . . . . . . 10-72
Full-Size Spare Tire . . . . . . . . 10-82
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-82
Towing
Towing the Vehicle . . . . . . . . . 10-87
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . 10-87
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-91
Interior Care . . . . . . . . . . . . . . . . 10-94
Floor Mats . . . . . . . . . . . . . . . . . . 10-97
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:
California Proposition
65 Warning
Most motor vehicles, including this
one, contain and/or emit chemicals
known to the State of California to

Black plate (62,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-62 Vehicle Care
rotation, check the wheel
alignment. SeeWhen It Is Time
for New Tires on page 10‑64
and Wheel Replacement on
page 10‑69.
If your vehicle has dual rear
wheels, also see Dual Tire
Rotation on page 10‑63.
Use this rotation pattern when
rotating the tires if the vehicle
has single rear wheels.
Use this rotation pattern when
rotating the tires if the vehicle
has dual rear wheels (except
polished forged aluminum
wheels).
Vehicles with polished forged
aluminum dual wheels have
three unique wheels; a front, a
rear outer and a rear inner.
These wheels cannot be rotated
to another position, however,
they can be rotated from left to
right to the same position.Use this rotation pattern when
rotating the tires if the vehicle
has polished forged aluminum
dual rear wheels. The spare
wheel can be used in any
position and can be rotated with
the rear inner wheels.
When installing dual wheels,
check that the vent holes in the
inner and outer wheels on each
side are lined up.
Adjust the front and rear tires to
the recommended inflation
pressure on the Tire and

Black plate (68,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-68 Vehicle Care
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–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 were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
will not be necessary on a regular
basis. However, check the
alignment if there is unusual tire
wear or if the vehicle is pulling to
one side or the other. If the vehicle
vibrates when driving on a smooth

Black plate (10,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
11-10 Service and Maintenance
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi‐point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.With a multi‐point inspection,
your dealer can check the lamps
and note any concerns.Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
.As part of the multi‐point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs
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, 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 on
page 10‑94 andExterior Care on
page 10‑91.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.

Black plate (11,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Service and Maintenance 11-11
.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.

Black plate (12,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
i-12 INDEX
Tires (cont'd)Dual Rotation . . . . . . . . . . . . . . . 10-63
Full-Size Spare . . . . . . . . . . . . . 10-82
If a Tire Goes Flat . . . . . . . . . . 10-70
Inflation Monitor System . . . . 10-58
Inspection . . . . . . . . . . . . . . . . . . 10-61
Messages . . . . . . . . . . . . . . . . . . . . 5-43
Pressure . . . . . . . . . . . . . . . . . . . . 10-56
Pressure Light . . . . . . . . . . . . . . . . 5-26
Pressure Monitor System . . . 10-57
Rotation . . . . . . . . . . . . . . . . . . . . 10-61
Sidewall Labeling . . . . . . . . . . . 10-48
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-52
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-67
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-68
Wheel Replacement . . . . . . . . 10-69
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-64
Winter . . . . . . . . . . . . . . . . . . . . . . 10-48
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-37
Tow/Haul Mode Light . . . . . . . . . . 5-25 Towing
Driving Characteristics . . . . . . . . 9-71
Equipment . . . . . . . . . . . . . . . . . . . . 9-89
General Information . . . . . . . . . . 9-71
Recreational Vehicle . . . . . . . . 10-87
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-73
Trailer Sway
Control (TSC) . . . . . . . . . . . . . 9-100
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-87
Traction Control System (TCS)/
StabiliTrak
®Light . . . . . . . . . . . . 5-26
Trailer Sway Control (TSC) . . . . . . . . 9-100
Tow Mirrors . . . . . . . . . . . . . . . . . . . 2-13
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-73
Transfer Case . . . . . . . . . . . . . . . . . 9-38
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 9-32
Fluid, Automatic . . . . . 10-10, 10-12
Messages . . . . . . . . . . . . . . . . . . . . 5-44
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . 13-13
Trip Odometer . . . . . . . . . . . . . . . . . 5-12
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . 9-21 Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Turn Signal Bulb Replacement . . . . . . . . . . 10-36
U
Ultrasonic Parking Assist . . . . . . 9-59
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-67
Universal Remote System . . . . . 5-54 Operation . . . . . . . . . . . . . . . . . . . . . 5-58
Programming . . . . . . . . . . . . . . . . . 5-54
Using This Manual . . . . . . . . . . . . . . . . iii
V
Vehicle
Alarm System . . . . . . . . . . . . . . . . 2-10
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-15
Messages . . . . . . . . . . . . . . . . . . . . 5-37
Personalization . . . . . . . . . . . . . . . 5-46
Reminder Messages . . . . . . . . . . 5-45

Black plate (13,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
INDEX i-13
Vehicle (cont'd)Remote Start . . . . . . . . . . . . . . . . . . 2-4
Security . . . . . . . . . . . . . . . . . . . . . . 2-10
Towing . . . . . . . . . . . . . . . . . . . . . . 10-87
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . 10-55
Ventilation, Air . . . . . . . . . . . . . . . . . 8-10
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Voltmeter Gauge . . . . . . . . . . . . . . 5-15
W
Warning Brake System Light . . . . . . . . . . . 5-23
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . 5-10
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv
Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 6-5 Washer Fluid . . . . . . . . . . . . . . . . . 10-23
Messages . . . . . . . . . . . . . . . . . . . . 5-46
Wheels Alignment and TireBalance . . . . . . . . . . . . . . . . . . . 10-68
Different Size . . . . . . . . . . . . . . . 10-66
Replacement . . . . . . . . . . . . . . . 10-69
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-64
Where to Put the Restraint . . . . 3-44
Windows . . . . . . . . . . . . . . . . . . . . . . 2-17 Manual . . . . . . . . . . . . . . . . . . . . . . . 2-18
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Windshield Wiper/Washer . . . . . . . . . . . . . . . . . 5-4
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Winter Tires . . . . . . . . . . . . . . . . . . 10-48
Wiper Blade Replacement . . . . 10-33