2004 PONTIAC GRAND PRIX wheel alignment

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Supercharger Oil..........................................5-21
Engine Air Cleaner/Filter................................5-22
Automatic Transaxle Fluid..............................5-24
Engine Coolant.............................................5-26
Radiator Pressure Cap..................................5-29
Engine Overheating.......................................5-29
Cooling System............................................5-32
Power Steering Fluid.....................................5-42
Windshield Washer Fluid................................5-43Brakes........................................................5-45
Battery........................................................5-48
Jump Starting...............................................5-49
Headlamp Aiming...........................................5-56
Bulb Replacement..........................................5-59
Halogen Bulbs..............................................5-59
Headlamps and Sidemarker Lamps.................5-60
Front Turn Signal, Parking and
Fog Lamps...............................................5-62
Center High-Mounted Stoplamp (CHMSL).........5-64
Taillamps, Turn Signal, and Stoplamps............5-64
Back-Up Lamps............................................5-65
Replacement Bulbs.......................................5-66
Windshield Wiper Blade Replacement..............5-67
Tires..............................................................5-68
In¯ation -- Tire Pressure................................5-69
Tire Pressure Monitor System.........................5-70
Tire Inspection and Rotation...........................5-71
When It Is Time for New Tires.......................5-72
Buying New Tires.........................................5-73
Uniform Tire Quality Grading..........................5-74
Wheel Alignment and Tire Balance..................5-75
Wheel Replacement......................................5-75
Tire Chains..................................................5-77
Section 5 Service and Appearance Care
5-1

Tire Inspection and Rotation
Tires should be rotated every 7,500 miles (12 500 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 5-72andWheel Replacement
on page 5-75for more information.
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.
When rotating your tires, always use the correct rotation
pattern shown here.Don't include the compact spare tire in your tire rotation.
After the tires have been rotated, adjust the front and
rear in¯ation pressures as shown on the Tire-Loading
Information label. Make certain that all wheel nuts
are properly tightened. See ªWheel Nut Torqueº under
Capacities and Speci®cations on page 5-104.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the vehicle.
In an emergency, you can use a cloth or a
paper towel to do this; but be sure to use a
scraper or wire brush later, if you need to, to
get all the rust or dirt off. See ªChanging a Flat
Tireº in the Index.
5-71

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.
5-75

Throttle System Inspection...............................6-15
Tilt Wheel........................................................ 3-5
Tire In¯ation Check.........................................6-10
Tires.............................................................5-68
Buying New Tires........................................5-73
Chains.......................................................5-77
Changing a Flat Tire....................................5-78
Compact Spare Tire.....................................5-89
If a Tire Goes Flat.......................................5-78
In¯ation -- Tire Pressure...............................5-69
Inspection and Rotation................................5-71
Pressure Monitor System..............................5-70
Uniform Tire Quality Grading.........................5-74
Wheel Alignment and Tire Balance.................5-75
Wheel Replacement.....................................5-75
When It Is Time for New Tires......................5-72
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-39
Top Strap Anchor Location...............................1-40
Torque Lock...................................................2-29
Total Weight on Your Vehicle's Tires..................4-39
Towing
Recreational Vehicle.....................................4-33
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-33
Traction
Control System (TCS)..................................4-10
Control System Warning Light.......................3-38
Enhanced Traction System (ETS)...................4-11Traction (cont.)
Enhanced Traction System (ETS)
Warning Light..........................................3-38
Stabilitrak
ž& Plus System.............................4-13
TRACTION CONTROL ACTIVE.........................3-87
TRACTION CONTROL OFF.............................3-87
Trailer Brakes.................................................4-40
Transaxle
Fluid, Automatic...........................................5-24
Transaxle Operation, Automatic.........................2-22
Transmission
Up-Shift Light..............................................3-35
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trunk............................................................2-10
Trunk Assist Handle........................................2-11
Trunk Lock....................................................2-10
Turn and Lane-Change Signals.........................3-14
TURN SIGNAL ON.........................................3-87
Turn Signals When Towing a Trailer..................4-42
U
Underbody Flushing Service.............................6-13
Underhood Fuse Block...................................5-102
Understanding Radio Reception.......................3-130
Uniform Tire Quality Grading............................5-74
14

United States ± Customer Assistance.................. 7-4
Uplevel DIC with Trip Computer........................3-53
Up-Shift Light.................................................3-35
Used Replacement Wheels..............................5-76
Using Cleaner on Fabric..................................5-91
Using Song List Mode...................................3-126
V
Variable Effort Steering....................................4-14
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-35
Symbols......................................................... iv
Vehicle Identi®cation
Number (VIN).............................................5-98
Service Parts Identi®cation Label...................5-98
Vehicle Storage..............................................5-48
Ventilation Adjustment......................................3-29
Visor Vanity Mirror..........................................2-13
Visors...........................................................2-13
W
Warning Lights, Gages and Indicators................3-31
Warnings.......................................................3-65
DIC Warnings and Messages........................3-65
Hazard Warning Flashers............................... 3-4Warnings (cont.)
Other Warning Devices.................................. 3-5
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-93
Weatherstrip Lubrication...................................6-11
Weight of the Trailer........................................4-38
Weight of the Trailer Tongue.............................4-39
What Kind of Engine Oil to Use........................5-18
What Kind of Oil to Use..................................5-21
What to Do with Used Oil................................5-21
What to Use..........................................5-27, 5-43
Wheels
Alignment and Tire Balance..........................5-75
Replacement...............................................5-75
When to Add..................................................5-43
When to Add Engine Oil..................................5-17
When to Change Engine Oil
(GM Oil Life System)...................................5-20
When to Check......................................5-21, 5-69
When to Check and Change............................5-24
When to Check Power Steering Fluid................5-42
When You Are Ready to Leave After
Parking on a Hill.........................................4-43
Where to Put the Restraint...............................1-38
Why Safety Belts Work....................................1-11
Window Lock-Out............................................2-13
Windows.......................................................2-12
Power........................................................2-13
15