2005 PONTIAC GTO headlamp

To adjust the vertical aim on the headlamps, do the
following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Find the aim dot on the lens of the low-beam
headlamp.
3. Measure the distance from the ground to the aim
dot on the low-beam headlamp. Record the
distance.
4. At the wall or other flat surface, measure from the
ground upward the recorded distance from Step 2
and mark it.
5. Draw or tape a horizontal line the width of the
vehicle at the wall or other flat surface where it
was marked it Step 4.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.
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 flat surface.
7. Locate the vertical headlamp aiming screws, which
are under the hood near each headlamp assembly.
The adjustment screw can be turned with a
No. 2 Phillips head screwdriver.
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8. Turn the vertical aiming screw (A) until the
headlamp beam is aimed to the horizontal tape line.
If you turn it clockwise, it will raise the beam and
if you turn it counterclockwise, it will lower the beam.
The top edge of the cut-off should be positioned
at the bottom edge of the horizontal tape line.
9. Repeat Steps 7 and 8 for the opposite headlamp.
Bulb Replacement
For the type of bulbs, seeReplacement Bulbs on
page 5-51.
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
Driver’s Side
To replace the driver’s side headlamp bulbs, first do the
following:
1. Open the hood. SeeHood Release on page 5-11
for more information. Passenger’s Side Shown
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2. Remove the five screws in the radiator cover.
3. Unclip and remove the radiator cover.
A hole is provided in the air intake duct so that the
bulbs can be accessed for replacement.
After following the procedure to replace the bulbs, clip
the radiator cover to the radiator fan shroud and reinstall
the five screws.
Passenger’s Side
To replace the passenger’s side headlamp bulbs,
first do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Disconnect the battery clamp.
3. Remove the battery retaining plate and slide the
battery out of the way toward the rear of the vehicle.
4. Disconnect the battery terminals. If your vehicle is
equipped with a larger battery, it must be completely
removed from the vehicle.
After following the procedure to replace the bulbs,
reinstall and reconnect the battery.
1. Access the bulbs by following the previous
instructions for either the driver’s side or
passenger’s side of the vehicle.
2. Turn the dust caps
counterclockwise and
remove from the rear
of the headlamp
assembly to gain
access to the bulb.
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3. Remove the wiring harness connector by squeezing
the two tabs on the connector and pulling the
connector down.
4. Remove the old bulb
by twisting the bulb
counterclockwise.
5. Install the new bulb without touching it.
6. Reverse the steps to reinstall the headlamp
assembly.Front Turn Signal and
Parking Lamps
To replace a front turn signal or parking lamp bulb,
do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Follow the removal procedure for either the driver’s
side or passenger’s side of the vehicle to access
the bulbs. SeeHeadlamps on page 5-47for
more information.
3. Disconnect the wiring harness connector from the
bulb assembly.
4. Turn the bulb socket counterclockwise and remove.
5. Lightly press the bulb and twist counterclockwise
out of the socket.
6. Insert the new bulb and install the bulb socket.
The bulb should be colored orange.
7. Reconnect the wiring harness connector.
8. Reinstall the battery or radiator cover. See
Headlamps on page 5-47for more information.
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4. Turn the appropriate bulb socket counterclockwise
while holding the assembly, to release it from the
housing.
5. Remove the bulb from the socket by pushing it in
and turning it counterclockwise. The turn signal
bulb must have amber colored glass.
6. Install the new bulb into the bulb socket by pushing
it into the socket and turning it clockwise.
7. Install the bulb socket into the lamp housing,
ensuring that the socket locks securely into place.
8. Reinstall the lamp assembly so that the clips are
seated correctly. Fit the housing to the body, so
that the locating pegs snap into the clips.
9. Install and tighten the screws to secure.Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 1156
Front Turn Signal and
Parking Lamp1157NA
Headlamps
High-Beam H9
Low-Beam H11LL
Rear Turn Signal 1156NA
Stoplamp and Taillamp 1157
For replacement bulbs not listed here, contact
your dealer.
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Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you the
longest tire life and best overall performance.
Adjustments to wheel alignment and tire balancing will
not be necessary on a regular basis. However, if
you notice unusual tire wear or your vehicle pulling to
one side or the other, the alignment may need to
be checked. If you notice your vehicle vibrating when
driving on a smooth road, your tires and wheels
may need to be rebalanced. See your dealer for proper
diagnosis.
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.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted
the same way as the one it replaces.If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM
original equipment parts. This way, you will be sure to
have the right wheel, wheel bolts and wheel nuts
for your vehicle.
{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 5-68for more
information.
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Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by fuses, circuit breakers and thermal links
in the wiring itself. This greatly reduces the chance of
fires caused by electrical problems.
Look at the metallic band inside the fuse. If the band is
broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the correct size.
If you ever have a problem on the road and don’t have
a spare fuse, you can borrow one. Just pick some
feature of your vehicle that you can get along
without — like the radio or cigarette lighter — and use
its fuse, if it is the size you need. Replace it as soon as
you can.
Before replacing a fuse, turn every vehicle electrical
switch off.
There are two fuse blocks in your vehicle: the
instrument panel fuse block and the engine compartment
fuse block.
Instrument Panel Fuse Block
This fuse block is located under the driver’s side of the
instrument panel. The fuses here protect each
separate circuit including headlamps. There are spare
fuses inside the fuse box. If you have electrical
failure, check here first.
Fuses Usage
FLASHER
UNITHazard Warning Flashers
POWER
WINDOWSPower Window Switches
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Relays Usage
ACC RELAY Accessory Power Outlet
IGNITION
RELAYIgnition Switch
POWER
WINDOW
RELAYPower Windows
BLOWER
INHIBIT RELAYBlower
PARK LAMPS
RELAYParking Lamps
SPARE Spare
INTERIOR
ILLUM RELAYInterior Light Controls
ECM/TCM
CONTROL
RELAY 1Engine Control Module,
Transmission Control Module 1
ECM/TCM
CONTROL
RELAY 2Engine Control Module,
Transmission Control Module 2
SPARE SpareEngine Compartment Fuse Block
The engine compartment fuse block is located in
the engine compartment and protects all electrical loads.
SeeEngine Compartment Overview on page 5-12for
more information on location.
For access to the main fuses, pull off the cover.
Fuses Usage
INJ/IGN Fuel Injectors and Ignition Modules
INJ/IGN Fuel Injectors and Ignition Modules
ENG
SENSORSEngine Sensors
AUTO TRANS Automatic Transmission
LH HEADLAMP Left Headlamp
RH
HEADLAMPRight Headlamp
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