2002 PONTIAC GRAND PRIX Owners Manual

6-43
Headlamp Aiming
The aim of your vehicle's headlamps can be adjusted by
using aim tips located on the outer surface of the lens.
The aim has been pre
-set at the factory and should need
no further adjustment.
If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment to the low beam
may be necessary if it is difficult to see lane markers
(for horizontal aim), or if oncoming drivers flash their
high beams at you (for vertical aim). If you believe your
headlamps need to be re
-aimed, it is recommended that
you take your vehicle to the dealer for assistance.
Front Turn Signal and Front Sidemarker
1. Open the hood.
2. Remove the two bolts from the top of the
headlamp assembly.
3. Remove the headlamp assembly from the vehicle.
Be careful to avoid scratching or chipping the paint
on the vehicle while removing it.
4. Turn the front sidemarker bulb socket a quarter turn
counterclockwise to remove.

6-44
5. Remove the old bulb from the socket.
6. Place the new bulb into the socket.
7. Turn the bulb socket a quarter turn clockwise to
reinstall it.
8. Carefully reinstall the headlamp assembly.
Be careful to avoid scratching or chipping the paint
on the vehicle.
9. Reinstall the two bolts on the top of the
headlamp assembly.
10. Close the hood.
Center High-Mounted Stoplamp (CHMSL)
1. Open the trunk.
2. Reach through the access opening in the trunk and
remove the slotted vent by squeezing the ends and
pulling down.

6-45
3. Remove old the bulb by turning it a quarter
turn counterclockwise.
4. Place the new bulb into the bulb socket.
5. Turn the bulb a quarter turn clockwise. Reinstall
the vent.
6. Close the trunk.
Back-Up, Tail Lamp and Rear Sidemarker
1. Open the trunk.
2. Unhook the convenience net (if equipped) and
remove it.
3. Unscrew the upper convenience net
hook attachment.
4. Pull the trunk trim carpeting away from the rear of
the trunk.
5. Remove the upper trunk trim hook and the
two plastic wing nuts from the taillamp.

6-46
6. Carefully remove the taillamp assembly. Be careful
to avoid scratching or chipping the paint on
the vehicle.7. Turn the lamp socket a quarter turn counterclockwise
to remove.

6-47
8. Remove the old bulb.
9. Place the new bulb into the socket.
10. Turn the lamp socket a quarter turn clockwise to
reinstall it.
11. Carefully reinstall the taillamp assembly by
reversing Steps 1 through 5. Be careful to avoid
scratching or chipping the vehicle's paint.
12. Close the rear compartment.

6-48
Windshield Wiper
Blade Replacement
Windshield wiper blades should be inspected at
least twice a year for wear or cracking. See
ªWindshield Wipers, Blade Checkº in the
Index for more information.
Replacement blades come in different types and are
removed in different ways. For the proper type and
length, see ªNormal Maintenance and Replacement
Partsº in the Index.To remove the wiper blade do the following:
1. Pull the windshield wiper arm away from
the windshield.
2. Push the release lever and slide the wiper assembly
toward the driver's side of the vehicle.
3. Install a new blade by reversing Steps 1 and 2.

6-49
Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service, see
your Pontiac Warranty booklet for details.
CAUTION:
Poorly maintained and improperly used tires
are dangerous.

Overloading your tires can cause
overheating as a result of too much friction.
You could have an air
-out and a serious
accident. See ªLoading Your Vehicleº in
the Index.
CAUTION: (Continued)
CAUTION: (Continued)

Underinflated tires pose the same danger as
overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.

Overinflated tires are more likely to be
cut, punctured or broken by a sudden
impact
-- such as when you hit a pothole.
Keep tires at the recommended pressure.

Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.

6-50 Inflation -- Tire Pressure
The Tire-Loading Information label, which is on the
inside of the trunk lid, shows the correct inflation
pressures for your tires when they're cold. ªColdº
means your vehicle has been sitting for at least three
hours or driven no more than 1 mile (1.6 km).
NOTICE:
Don't let anyone tell you that underinflation or
overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can
get the following:

Too much flexing

Too much heat

Tire overloading

Bad wear

Bad handling

Bad fuel economy
NOTICE: (Continued)
NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:

Unusual wear

Bad handling

Rough ride

Needless damage from road hazards
When to Check
Check your tires once a month or more.
Don't forget your compact spare tire. It should be
at 60 psi (420 kPa).
How to Check
Use a good quality pocket
-type gage to check tire
pressure. You can't tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.