2003 CHEVROLET EXPRESS CARGO VAN wheel alignment

Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-56
In¯ation -- Tire Pressure................................5-56
Dual Tire Operation.......................................5-57
Tire Inspection and Rotation...........................5-58
When It Is Time for New Tires.......................5-59
Buying New Tires.........................................5-60
Uniform Tire Quality Grading..........................5-61
Wheel Alignment and Tire Balance..................5-62
Wheel Replacement......................................5-62
Tire Chains..................................................5-63
If a Tire Goes Flat........................................5-64
Changing a Flat Tire.....................................5-65
Appearance Care............................................5-80
Cleaning the Inside of Your Vehicle.................5-80
Care of Safety Belts......................................5-83
Weatherstrips...............................................5-83Cleaning the Outside of Your Vehicle..............5-83
Sheet Metal Damage.....................................5-86
Finish Damage.............................................5-86
Underbody Maintenance................................5-87
Chemical Paint Spotting.................................5-87
Vehicle Care/Appearance Materials..................5-88
Vehicle Identi®cation......................................5-90
Vehicle Identi®cation Number (VIN).................5-90
Service Parts Identi®cation Label.....................5-90
Electrical System............................................5-91
Add-On Electrical Equipment..........................5-91
Headlamp Wiring..........................................5-91
Windshield Wiper Fuses................................5-91
Fuses and Circuit Breakers............................5-92
Capacities and Speci®cations..........................5-97
Normal Maintenance Replacement Parts.........5-100
Section 5 Service and Appearance Care
5-2

Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km).
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 5-59andWheel Replacement
on page 5-62for more information.
Make sure the spare tire is stored securely. Push, pull,
and then try to rotate or turn the tire. If it moves,
use the ratchet/wheel wrench to tighten the cable. See
Changing a Flat Tire on page 5-65.
If your vehicle has dual rear wheels, also see
Dual Tire
Operation on page 5-57.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The ®rst rotation
is the most important. See ªPart A: Scheduled
Maintenance Services,º in Section 6, for scheduled
rotation intervals.If your vehicle has single rear wheels, always use one
of the correct rotation patterns shown here when rotating
your tires.
If your vehicle has dual rear wheels, always use one of
the correct rotation patterns shown here when rotating
your tires.
5-58

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 speci®ed 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 Vehicle 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 in¯ated and not
overloaded. Excessive speed, underin¯ation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.Scheduled wheel alignment and wheel balancing are
not needed. However, if you notice unusual tire wear or
your vehicle pulling one way or the other, the alignment
may need to be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the
wheel, wheel bolts and wheel nuts should be replaced.
If the wheel leaks air, replace it (except some
aluminum wheels, which can sometimes be repaired).
See your dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted
the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM
original equipment parts. This way, you will be sure to
have the right wheel, wheel bolts and wheel nuts
for your vehicle.
5-62

T
Taillamps.......................................................5-52
Theft-Deterrent, Radio.....................................3-73
Theft-Deterrent Systems...................................2-19
Passlock
ž...................................................2-19
Throttle System Inspection...............................6-17
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-11
Tires.............................................................5-56
Buying New Tires........................................5-60
Chains.......................................................5-63
Changing a Flat Tire....................................5-65
Dual Tire Operation.....................................5-57
If a Tire Goes Flat.......................................5-64
In¯ation -- Tire Pressure...............................5-56
Inspection and Rotation................................5-58
Uniform Tire Quality Grading.........................5-61
Wheel Alignment and Tire Balance.................5-62
Wheel Replacement.....................................5-62
When It Is Time for New Tires......................5-59
To Use the Engine Coolant Heater....................2-23
Top Strap Anchor Location...............................1-50
Top Strap......................................................1-48
Torque Lock...................................................2-28
Total Weight on Your Vehicle's Tires..................4-39
Tow/Haul Mode Light.......................................3-38
Tow/Haul Mode...............................................4-32Towing..........................................................4-29
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-31
Your Vehicle...............................................4-29
Trailer Brakes.................................................4-40
Trailer Wiring Harness.....................................4-44
Transfer Case................................................5-46
Transmission Operation, Automatic....................2-24
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transmission..................................................5-19
Fluid, Automatic...........................................5-19
Transportation Options...................................... 7-7
Trip Odometer................................................3-25
Turn and Lane Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-42
U
Underbody Flushing Service.............................6-15
Understanding Radio Reception........................3-73
Uniform Tire Quality Grading............................5-61
United States ± Customer Assistance.................. 7-4
Using Cleaner on Fabric..................................5-81
Using RDS............................................3-51, 3-62
Using Song List Mode.....................................3-69
14

Wheels..........................................................5-62
Alignment and Tire Balance..........................5-62
Replacement...............................................5-62
When to Add Engine Oil..................................5-14
When to Change Engine Oil.............................5-16
When to Check and Change............................5-19
When to Check Lubricant.................................5-47
When to Check Power Steering Fluid................5-35
When to Check..............................................5-57
When to Inspect the Engine Air Cleaner/Filter.....5-17
When You Are Ready to Leave After Parking
on a Hill.....................................................4-43
Where to Put the Restraint...............................1-45
Why Safety Belts Work....................................1-11
Windows.......................................................2-16
Manual......................................................2-16
Power........................................................2-17
Swing-Out Windows.....................................2-18Windshield Washer Fluid Level Check................6-11
Windshield Washer.........................................3-10
Fluid..........................................................5-35
Windshield Wiper............................................5-55
Blade Replacement......................................5-55
Fuses........................................................5-91
Windshield Wipers............................................ 3-9
Winter Driving................................................4-24
Wiper Blade Check.........................................6-12
Y
Your Vehicle and the Environment....................... 6-2
16