Tire Pressure Monitor Operation.....................5-58
Tire Inspection and Rotation...........................5-62
When It Is Time for New Tires.......................5-63
Buying New Tires.........................................5-64
Different Size Tires and Wheels......................5-66
Uniform Tire Quality Grading..........................5-67
Wheel Alignment and Tire Balance..................5-69
Wheel Replacement......................................5-69
Tire Chains..................................................5-70
Accessory In ator.........................................5-71
If a Tire Goes Flat........................................5-73
Changing a Flat Tire.....................................5-74
Removing the Spare Tire and Tools................5-75
Removing the Flat Tire and Installing the
Spare Tire................................................5-77
Secondary Latch System...............................5-84
Storing a Flat or Spare Tire and Tools............5-86
Compact Spare Tire......................................5-88
Appearance Care............................................5-89
Interior Cleaning...........................................5-89
Fabric/Carpet...............................................5-91
Leather.......................................................5-91
Instrument Panel, Vinyl, and Other
Plastic Surfaces........................................5-92
Child Restraint Pad.......................................5-92Care of Safety Belts and Built-in Child
Restraint Harness......................................5-92
Weatherstrips...............................................5-92
Washing Your Vehicle...................................5-93
Cleaning Exterior Lamps/Lenses.....................5-93
Finish Care..................................................5-94
Windshield, Backglass, and Wiper Blades.........5-94
Aluminum Wheels.........................................5-95
Tires...........................................................5-95
Sheet Metal Damage.....................................5-96
Finish Damage............................................
.5-96
Underbody Maintenance................................5-96
Chemical Paint Spotting.................................5-96
Vehicle Identi cation......................................5-97
Vehicle Identi cation Number (VIN).................5-97
Service Parts Identi cation Label.....................5-97
Electrical System............................................5-97
Add-On Electrical Equipment..........................5-97
Headlamp Wiring..........................................5-98
Windshield Wiper Fuses................................5-98
Power Windows and Other Power Options.......5-98
Fuses and Circuit Breakers............................5-98
Instrument Panel Fuse Block..........................5-98
Underhood Fuse Block................................5-100
Capacities and Speci cations........................5-104
Section 5 Service and Appearance Care
5-2
Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.(A) Tire Size
:The tire size is a combination of
letters and numbers used to de ne a particular
tire’s width, height, aspect ratio, construction type,
and service description. See the “Tire Size”
illustration later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria
Speci cation)
:Original equipment tires designed
to GM’s speci c tire performance criteria have
a TPC speci cation code molded onto the sidewall.
GM’s TPC speci cations meet or exceed all
federal safety guidelines.
(C) DOT (Department of Transportation)
:The Department of Transportation (DOT) code
indicates that the tire is in compliance with the
U.S. Department of Transportation Motor Vehicle
Safety Standards.
(D) Tire Identi cation Number (TIN)
:The letters
and numbers following DOT (Department of
Transportation) code is the Tire Identi cation
Number (TIN). The TIN shows the manufacturer
and plant code, tire size, and date the tire was
manufactured. The TIN is molded onto both sides of
the tire, although only one side may have the date
of manufacture.
(E) Tire Ply Material
:The type of cord and
number of plies in the sidewall and under the
tread. Passenger (P-Metric) Tire Example
5-48
(F) Uniform Tire Quality Grading (UTQG):Tire manufacturers are required to grade
tires based on three performance factors:
treadwear, traction, and temperature resistance.
For more information seeUniform Tire Quality
Grading on page 5-67.
(G) Maximum Cold In ation Load Limit
:Maximum load that can be carried and the
maximum pressure needed to support that load.(A) Temporary Use Only
:The compact
spare tire or temporary use tire has a tread life of
approximately 3,000 miles (5 000 km) and should
not be driven at speeds over 65 mph (105 km/h).
The compact spare tire is for emergency use when
a regular road tire has lost air and gone at. If your
vehicle has a compact spare tire, seeCompact
Spare Tire on page 5-88andIf a Tire Goes Flat
on page 5-73.
(B) Tire Ply Material
:The type of cord and
number of plies in the sidewall and under the
tread.
(C) Tire Identi cation Number (TIN)
:The letters
and numbers following the DOT (Department of
Transportation) code is the Tire Identi cation
Number (TIN). The TIN shows the manufacturer
and plant code, tire size, and date the tire was
manufactured. The TIN is molded onto both sides
of the tire, although only one side may have the
date of manufacture.
(D) Maximum Cold In ation Load Limit
:Maximum load that can be carried and the
maximum pressure needed to support that load.
Compact Spare Tire Example
5-49