2005 PONTIAC GRAND PRIX Owners Manual

Notice:If the jumper cables are removed in the
wrong order, electrical shorting may occur and
damage the vehicle. The repairs would not be
covered by your warranty. Remove the jumper
cables in the correct order, making sure that the
cables do not touch each other or other metal.
A. Heavy, Unpainted Metal Engine Part
B. Good Battery or Remote Positive (+) Terminal
C. Dead Battery or Remote Positive (+) TerminalTo disconnect the jumper cables from both vehicles,
do the following:
1. Disconnect the black negative (−) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
5. Return the remote positive (+) terminal cover to
its original position.
Jumper Cable Removal
5-47

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 or other at
surface.
The vehicle must have all four tires on a perfectly
level surface which is level all the way to the wall
or other at surface.
The vehicle should be placed so it is perpendicular
to the wall or other at surface.
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)
on the driver’s seat.
Tires should be properly inated.
Headlamp aiming is done with the vehicle’s low-beam
lamps. The high-beam lamps will be correctly aimed
if the low-beam lamps are aimed properly.
The vertical headlamp aiming screws are under the
hood near the headlamps.
Adjustment screws can be turned with an E8 Torx
®
socket or T15 Torx®screwdriver.
5-48

Headlamp Vertical Aiming
1. Find the aim dot on the lens of the low-beam lamp.
2. Measure the distance from the ground to the aim
dot on the lamp. Record the distance.3. At the wall or other at surface, measure from the
ground upward the recorded distance from Step 2
and draw or tape a horizontal line the width of
the vehicle.
5-49

4. 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.
5. Turn the vertical aiming screw until the headlamp
beam is aimed to the horizontal tape line. The top
edge of the cut-off should be positioned at the
bottom edge of the horizontal tape line.
6. Repeat Steps 4 and 5 for the opposite headlamp.Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-56.
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.
5-50

Headlamps and Sidemarker Lamps
1. Open the hood. SeeHood Release on page 5-10for
more information.
A. High-Beam Headlamp
B. Low-Beam Headlamp
C. Sidemarker Lamp2. Pull up half-way on the plastic retaining clip while
pushing rearward on the headlamp.
Align the square cut-out on the retaining clip with
the notch on the headlamp.
5-51

3. Pull the headlamp assembly straight out from the
vehicle. (Moving the headlamp up and down
slightly may help with its removal.)4. Turn the bulb socket ring one-quarter of a turn
counterclockwise to remove it from the headlamp
assembly.
5. Pull the old bulb from the socket.
6. Place the new bulb into the socket.
7. Turn the bulb socket ring one-quarter turn clockwise
to reinstall it back into the headlamp assembly.
8. Carefully reinstall the headlamp assembly.
9. Push down on the plastic retaining clip on the
electrical connector while pushing rearward on
the headlamp, making sure the headlamp assembly
is secure.
5-52

Front Turn Signal, Parking and
Fog Lamps
The front turn signal, parking, and fog lamps are
located below the high-beam, low-beam headlamps
and sidemarker lamps.
A. Front Turn Signal,
Parking Lamp
B. Fog Lamp
1. Follow Steps 1 through 3 of the headlamp
replacement procedure. SeeHeadlamps and
Sidemarker Lamps on page 5-51for more
information.2. Locate the front turn
signal, parking lamp,
and fog lamp bulbs,
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.
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. Be careful to
avoid scratching or chipping the paint on the
vehicle.
7. Push down on the plastic retaining clip on the
electrical connector while pushing rearward on
the headlamp, making sure the headlamp assembly
is secure.
5-53

Taillamps, Turn Signal, and
Stoplamps
A. Taillamp
B. Taillamps, Turn Signal
and Stoplamps
1. Open the trunk. SeeTrunk on page 2-13for more
information.
2. Remove the convenience net, if equipped, by
removing the net hook attachments.3. Remove the plastic cap from the trunk trim.
4. Pull the trunk trim and carpet away from the back of
the trunk.
5. Remove the bottom bolt and two nuts.
6. Remove the taillamp
assembly by pulling it
out from the vehicle.
5-54