OLDSMOBILE AURORA 1999 Owners Manual

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Bulb Replacement
This section describes bulb changing procedures for
some of your interior and exterior lamps. For any bulb
changing procedure not listed in this section, contact
your service department.
For the type of bulb to use, see ªReplacement Bulbsº
in the Index.
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
A. Front Turn Signal
B. Headlamps
The entire front headlamp assembly must be removed to
replace the front turn signal (A) and low
-beam and
high
-beam headlamp (B) bulbs. You may find it easier
to remove the air cleaner assembly when replacing bulbs
on the driver's side.
If more hand clearance is required, remove the air
cleaner assembly as instructed in Steps 1 through 3
earlier in this section.
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Low-Beam Headlamp Bulbs
If you need to replace a low
-beam headlamp bulb, do
the following:
1. Remove the two bolts and pull out the headlamp
assembly for more hand clearance.
2. Twist the bulb assembly one-sixth of a turn
counterclockwise and pull out the bulb assembly.
3. Unclip the bulb
assembly from the
wiring harness and
replace the bulb.
4. Reverse Steps 1 through 4 to replace the bulb
assembly, headlamp housing, air cleaner cover
and tube.
5. Replace the headlamp assembly by aligning the pin
and tightening the two bolts to secure it.
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High-Beam Headlamp Bulbs
If you need to replace a high
-beam headlamp bulb, do
the following:
1. Remove the headlamp assembly if you need more
hand clearance.
2. Pull up on the wiring harness. This unlocks the bulb.
3. Now you can reach in behind the lamp housing and
pull out the bulb.4. To replace the bulb, angle the new bulb into the
empty socket.
5. Push the base of the bulb down to lock it into place.
6. If you removed the headlamp assembly, reassemble
it by aligning the pin and tightening the two bolts to
secure it.
Headlamp Aiming
Your vehicle has a headlamp system equipped with
horizontal and vertical aim indicators. The aim has been
pre
-set at the factory and should need no further
adjustment. This is true even though your vertical and
horizontal aim indicators may not fall exactly on the ª0º
(zero) marks on their scales.
If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment 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, we recommend that you take it to your dealer
for service; however, it is possible for you to re
-aim
your headlamps as described in the following procedure.
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NOTICE:
To make sure your headlamps are aimed
properly, read all the instructions before
beginning. Failure to follow these instructions
could cause damage to headlamp parts.
The vehicle should be properly prepared as follows:

The vehicle must have all four tires on a perfectly
level surface.

If necessary, pads may be used on an uneven surface.

The vehicle should not have any snow, ice or mud
attached to it.

The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.
There should not be any cargo or loading of the
vehicle, except it should have a full tank of fuel and
one person or 160 lbs. (75 kg) on the driver's seat.

Close all doors.

Tires should be properly inflated.

Rock the vehicle to stabilize the suspension.
The headlamp aiming devices are under the hood near
the headlamps.
Start with the horizontal aim. The adjustment screws can
be turned with an E8 Torx
 socket or T15 Torx
screwdriver.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
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1. Turn the horizontal aiming screw (A) until the
indicator (B) is lined up with zero.2. Turn the vertical aiming screw (C) until the level
bubble (D) is lined up with zero.
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The front turn signal bulb is on the inboard edge of the
headlamp assembly. To replace a bulb, do the following:
1. Remove the headlamp assembly if you need more
hand clearance.
2. Reach in and press the locking tab while twisting
the bulb assembly one
-quarter of a turn
counterclockwise.
3. Replace the bulb and reverse Step 2 to reassemble.
4. If you removed the headlamp assembly, reassemble
it by aligning the pin and tightening the two bolts to
secure it.
Taillamps
A. Rear Turn Signal
B. Taillamps
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1. In the trunk, remove the convenience net from the
hooks. Next remove the plastic screws holding the
carpeting in place and pull back the carpeting.
2. Unscrew the
convenience net
attachment nut. Open
the trim panel door.
3. Remove the two wing
nuts now exposed.
4. Remove the taillamp filler screw located to the side
of the taillamp filler panel.
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5. Pull out the taillamp assembly to reach the bulb and
pull it out. To replace, push the bulb back in.
6. Reverse Steps 1 through 5 to replace the taillamp
filler, wing nuts and carpeting.
Rear Turn Signal
The rear turn signal bulb is located on the outboard edge
of the taillamp assembly. Follow the taillamp procedure
for replacing a turn signal bulb.
Back-Up Lamps
To replace a back-up lamp, do the following:
1. Remove the license plate to expose the bulb cover.
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2. Use a 10 mm socket to
remove the four bolts.
There are two bolts on
each side of the cover.
3. Pry off the cover and pull down to access the bulbs.
4. Press the locking tab of the bulb assembly.
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5. Twist the socket one-quarter of a turn
counterclockwise and pull to remove.
6. Replace the bulb and reverse Steps 1 through 4 to
replace the assembly and tighten the bolts.
Interior Lamps
Front and Rear Reading Lamps
To change the bulbs in the front and rear reading lamps,
do the following:
1. Carefully insert a flat head screwdriver in the slot
between the lens cover and molding.
2. Gently pry the lens cover away to expose the reading
lamp bulb. The lens cover should pop off.
3. Remove the bulb from its assembly and install a
new bulb.
4. Snap the lens cover back in place.
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