2008 PONTIAC GRAND PRIX headlamp

7. Locate the vertical headlamp aiming screws, which
are under the hood, near the headlamps. Turn the
vertical aiming screw until the headlamp beam is
aimed to the horizontal tape line.
The adjustment screws can be turned witha6mm
hex key bit socket ora6mmhexkey.8. Turn the vertical aiming screw until the headlamp
beam is aimed to the horizontal tape line. Turn it
clockwise or counterclockwise to raise or lower the
angle of the beam.
9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal tape
line. The lamp on the left (A) shows the correct
headlamp aim. The lamp on the right (B) shows the
incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite
headlamp. Driver’s Side shown
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Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-60.
For any bulb changing procedure not listed in this
section, contact your dealer/retailer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps and Sidemarker Lamps
To replace a headlamp or sidemarker bulb:
A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp
1. Open the hood. SeeHood Release on page 5-11
for more information.
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2. Locate the metal retaining clip. Remove the bolt.
3. Pull up half-way on the metal retaining clip
while pushing rearward on the headlamp.
Align the square cut-out on the retaining clip with
the notch on the headlamp.4. Pull the headlamp assembly straight out from the
vehicle. Moving the headlamp up and down slightly
may help with its removal.
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A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp
5. Turn the bulb socket ring one-quarter of a turn
counterclockwise to remove it from the headlamp
assembly.6. Pull the old bulb from the socket.
7. Place the new bulb into the socket.
8. Turn the bulb socket ring one-quarter turn clockwise
to reinstall it back into the headlamp assembly.
9. Carefully reinstall the headlamp assembly.
10. Push down on the metal retaining clip while pushing
rearward on the headlamp, making sure the
headlamp assembly is secure.
11. Reinstall the bolt and tighten to secure.
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Front Turn Signal, Parking and Fog
Lamps
The front turn signal, parking, and fog lamps, if the
vehicle has them, are located below the headlamp
assembly.
A. Front Turn Signal/Parking Lamp
B. Fog Lamp (If Equipped)
To replace one of these bulbs, do the following:
1. Follow Steps 1 through 4 of the headlamp
replacement procedure. SeeHeadlamps and
Sidemarker Lamps on page 5-54for more
information.2. Locate the front turn
signal/parking lamp (all
models) and fog lamp
bulbs (if equipped),
which are located below
the headlamp
assembly.
The arrow indicates which is the turn signal/parking
lamp bulb. The fog lamp bulb is below it, if your
vehicle has this bulb. If you need to have fog lamp
bulb replaced, see your dealer/retailer for service.
3. Turn the bulb socket one-quarter of a turn
counterclockwise to remove it from its assembly.
4. Pull the old bulb from the socket and replace it with
a new one.
5. Turn the bulb socket a quarter turn clockwise to
reinstall it.
6. Reinstall the headlamp assembly.
7. Push down on the metal retaining clip while pushing
rearward on the headlamp, making sure the
headlamp assembly is secure.
8. Reinstall the bolt and tighten to secure.
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License Plate Lamp
To replace one of these bulbs:
1. Open the trunk. SeeTrunk on page 2-14
2. Turn the appropriate lamp socket a quarter turn
counterclockwise and remove it.
3. Remove the old bulb.
4. Put the new bulb into the lamp socket.
5. Turn the bulb a quarter turn clockwise to reinstall it.
Replacement Bulbs
Exterior Lamps Bulb Number
Back-Up Lamp 3157
Front Parking/Turn Signal Lamp3757 NAK* or
5702 KA**
Front Sidemarker and License
Plate Lamp194
Headlamps
High-Beam Halogen 9005
Low-Beam Halogen 9006
Stop/Taillamp/Turn Signal Lamps 3057
* Base Models with the Optional Fog Lamps
** For Lamps Not Equipped with the Fog Function and
GXP Models
For replacement bulbs not listed here, contact your
dealer/retailer.
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{CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-96for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You cannot know how it has been
used or how far it has been driven. It could fail
suddenly and cause a crash. If you have to
replace a wheel, use a new GM original
equipment wheel.
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Service Parts Identication Label
This label is in the trunk. It is very helpful if you ever
need to order parts. The label has the following
information:
Vehicle Identication Number (VIN)
Model designation
Paint information
Production options and special equipment
Do not remove this label from the vehicle.
Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer/retailer
rst. Some electrical equipment can damage your
vehicle and the damage would not be covered by
your warranty. Some add-on electrical equipment can
keep other components from working as they should.
Add-on equipment can drain your vehicle’s battery, even
if your vehicle is not operating.
Your vehicle has an airbag system. Before attempting to
add anything electrical to your vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-64.
Headlamp Wiring
The headlamp wiring is protected by fuses in the fuse
block. An electrical overload will cause the lamps to turn
off. If this happens, have your headlamp wiring checked
right away.
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