2007 PONTIAC GRAND PRIX low beam

You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.
Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.Driving in Rain and on Wet Roads
Rain and wet roads can mean driving trouble. On a
wet road, you cannot stop, accelerate, or turn as
well because your tire-to-road traction is not as
good as on dry roads. And, if your tires do not have
much tread left, you will get even less traction. It is
always wise to go slower and be cautious if rain
starts to fall while you are driving. The surface may
get wet suddenly when your reexes are tuned for
driving on dry pavement.
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Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim has been preset at the factory
and should need no further adjustment.
However, If the vehicle is damaged in an accident,
the headlamp aim may be affected and adjustment
may be necessary.
If oncoming vehicles ash their high beams at
you, this may also mean the vertical aim needs to
be adjusted.
It is recommended that the vehicle is taken to your
dealer for service if the headlamps need to be
re-aimed. It is possible however, to re-aim
the headlamps as described in the following
procedure.The vehicle should be properly prepared as
follows:The vehicle should be placed so the
headlamps are 25 ft. (7.6 m) from a light
colored wall.
The vehicle must have all four tires on a
perfectly level surface which is level all
the way to the wall.
The vehicle should be placed so it is
perpendicular to the wall.
The vehicle should not have any snow, ice, or
mud on it.
The vehicle should be fully assembled and all
other work stopped while headlamp aiming is
being done.
The vehicle should be normally loaded with a
full tank of fuel and one person or 160 lbs
(75 kg) sitting on the driver’s seat.
Tires should be properly inated.
Headlamp aiming is done with the low-beam
headlamps. The high-beam headlamps will be
correctly aimed if the low-beam headlamps
are aimed properly.
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To adjust the vertical aim, do the following:
1. Open the hood. SeeHood Release on
page 345for more information.
Find the aim dot on the lens of the
low-beam lamp.
2. Locate the aim dot on the lens of the
low-beam headlamp.
3. Measure the distance from the ground to the
aim dot on the lamp. Record the distance.4. At the wall measure from the ground
upward (A) to the recorded distance
from Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall
the width of the vehicle at the height of the
mark in Step 4.
6. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being aimed. This should
allow only the beam of light from the headlamp
being aimed to be seen on the at surface.
Notice:Do not cover a headlamp to improve
beam cut-off when aiming. Covering a
headlamp may cause excessive heat build-up
which may cause damage to the headlamp.
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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 with a
6 mm 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
390

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 398.
For any bulb changing procedure not listed in this
section, contact your dealer.
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,
do the following:
A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp
1. Open the hood. SeeHood Release on
page 345for more information.
391

A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp5. 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.
393

License Plate Lamp
To replace one of these bulbs, do the following:
1. Open the trunk. SeeTrunk on page 96
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
* GT and 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.
398

Underhood Fuse Block
The underhood fuse
block is located on the
passenger’s side of
the vehicle in the engine
compartment.
To remove the fuse block cover, press in on the
tab at the bottom of the cover and pull up.
Fuses Usage
1 Driver’s Side High-Beam Headlamp
2Passenger’s Side High-Beam
Headlamp
3 Driver’s Side Low-Beam Headlamp
4Passenger’s Side Low-Beam
Headlamp
3800 V6 Engine
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