2005 BUICK LESABRE Lamps

Headlamp Aiming
Your vehicle has a visual optical headlamp aiming
system equipped with horizontal aim indicators. The aim
has been preset at the factory and should need no
further adjustment. This is true even though your
horizontal aim indicators may not fall exactly on the “0”
(zero) marks on their scales.
If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment to the low beam
may be necessary if it is difficult to see lane markers (for
horizontal aim), or if oncoming drivers ash their high
beams at you (for vertical aim). If you believe yourheadlamps need to be re-aimed, we recommend that
you take your vehicle to your dealer for service.
However, it is possible for you to re-aim your headlamps
as described in the following procedure.
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 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
attached to 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.
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Headlamp aiming is done with the vehicle low-beam
lamps. The high-beam lamps will be correctly aimed if
the low-beam lamps are aimed properly.
The headlamp aiming devices are located under the
hood near the headlamps.
If you believe your headlamps need horizontal (left/right)
adjustment, follow the horizontal aiming procedure. If
you believe your headlamps need only vertical
(up/down) adjustment, follow only the vertical
aiming procedure.
Adjustment screws can be turned with an E8 Torx
®
socket or T15 Torx®screwdriver.
Headlamp Horizontal Aiming
To adjust the horizontal aim, do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Locate the horizontal aiming screw (A).
3. Turn the horizontal aiming screw (A) until the
indicator (B) is lined up with zero.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
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Headlamp Vertical Aiming
Notice:Horizontal aiming must be performed
before making any adjustments to the vertical aim.
Adjusting the vertical aim rst will result in an
incorrect headlamp aim.
To adjust the vertical aim, do the following:
1. Follow the steps listed underHeadlamp
Horizontal Aiming on page 5-46rst before
adjusting the vertical aim if horizontal aiming needs
to be performed.
2. Find the aim dot on the lens of the
low-beam lamps.
3. Measure the distance from the ground to the aim
dot on each lamp; if left low beam, subtract
2 inches (5 cm). Record this distance.4. At the wall or other at surface, measure from the
ground upward the recorded distance from Step 3
and draw or tape a horizontal line the width of
the vehicle.
5. Turn on the low-beam headlamps.
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. 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.
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Headlamps
1. Remove the two bolts retaining the
headlamp assembly.
2. Slide the headlamp outward until the pins are loose.
3. Remove the headlamp assembly to access
the bulbs.4. Turn the bulb retainer counterclockwise to remove it
from the bulb assembly.
5. Pull the old bulb straight out from the retainer. Push
the new bulb straight into the retainer.
6. Reverse Steps 1 through 4 to reinstall the
headlamp assembly.
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Front Turn Signal Lamps
1. Follow Steps 1 through 3 underHeadlamps on
page 5-49to remove the headlamp assembly
2. Reach down into the space provided by the
removal of the headlamp assembly and, while
pushing in the tab on the bulb assembly, turn the
assembly counterclockwise and remove it.
3. Remove the old bulb by pulling it straight out of
the retainer.
4. Install the new bulb and turn the bulb assembly
back into place.
Taillamps, Turn Signal, and
Stoplamps
1. Open the trunk. SeeTrunk on page 2-14for
more information.
2. Turn the screws located just inside of the trunk
counterclockwise and remove them.
3. Remove the plastic trim piece from the trunk.
4. Pull the carpet away from the rear area to access
the turn signal bulb assembly.
5. Loosen and remove the bolts that hold the lamp
assembly in place.6. Pull out the lamp assembly.
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7. Turn the bulb socket
one-quarter turn
counterclockwise, while
pressing it rmly.
8. Pull the bulb socket straight out of the assembly.
9. Remove the old bulb by pulling it straight out.
10. Replace with a new bulb by pushing the bulb
straight into the socket until the bulb clicks
into place.
11. Turn the bulb socket one-quarter turn into the
assembly to lock it back into place.
12. Reverse Steps 1 through 5 to reinstall the
lamp assembly.Taillamps and Back-Up Lamps
1. Open the trunk. SeeTrunk on page 2-14for
more information.
2. Loosen and remove the seven fasteners that hold
the taillamp assembly in place. The assembly for
both sides is one piece. The entire piece must
be removed to replace any bulbs.
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Replacement Bulbs
Exterior Lamp Bulb Number
Front Turn Signals 3157
Headlamps
High-Beam 9005
Low-Beam 9006
Trunk-Mounted Back-Up Lamps 3057
Trunk-Mounted Taillamps 194
Tail/Stop/Turn Signal Lamps 3357
For replacement bulbs not listed here, contact
your dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See “Wiper Blade
Check” underPart B: Owner Checks and Services on
page 6-18for more information.
Replacement blades come in different types and are
removed in different ways.
To replace the wiper blade assembly, do the following:
1. Lift the windshield wiper arm away from
the windshield.2. Push the tab on the wiper blade assembly and pull
the assembly down enough to release it from the
U-hooked end of the wiper arm. Slide the assembly
away from the arm.
3. Remove the blade.
4. To reinstall the wiper blade assembly, slide it over
the wiper arm to engage the U-hooked end on the
wiper blade assembly. Pull up on the assembly
to lock it into place.
For the proper windshield wiper blade replacement
length and type, seeNormal Maintenance Replacement
Parts on page 5-97.
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Cleaning Exterior Lamps/Lenses
Use only lukewarm or cold water, a soft cloth and a car
washing soap to clean exterior lamps and lenses.
Follow instructions underWashing Your Vehicle on
page 5-82.
Finish Care
Occasional waxing or mild polishing of the vehicle by
hand may be necessary to remove residue from
the paint nish. GM-approved cleaning products can be
obtained from your dealer. SeeVehicle
Care/Appearance Materials on page 5-86.
The vehicle has a “basecoat/clearcoat” paint nish. The
clearcoat gives more depth and gloss to the colored
basecoat. Always use waxes and polishes that are
non-abrasive and made for a basecoat/clearcoat
paint nish.
Notice:Machine compounding or aggressive
polishing on a basecoat/clearcoat paint nish may
damage it. Use only non-abrasive waxes and
polishes that are made for a basecoat/clearcoat
paint nish on your vehicle.
Foreign materials such as calcium chloride and other
salts, ice melting agents, road oil and tar, tree sap, bird
droppings, chemicals from industrial chimneys, etc.,can damage the vehicle’s nish if they remain on
painted surfaces. Wash the vehicle as soon as
possible. If necessary, use non-abrasive cleaners that
are marked safe for painted surfaces to remove
foreign matter.
Exterior painted surfaces are subject to aging, weather,
and chemical fallout that can take their toll over a period
of years. To help keep the paint nish looking new, keep
the vehicle in a garage or covered whenever possible.
Windshield and Wiper Blades
If the windshield is not clear after using the windshield
washer, or if the wiper blade chatters when running,
wax, sap, or other material may be on the blade
or windshield.
Clean the outside of the windshield with a glass
cleaning liquid or powder and water solution. The
windshield is clean if beads do not form when it is rinsed
with water.
Grime from the windshield will stick to the wiper blades
and affect their performance. Clean the blade by
wiping vigorously with a cloth soaked in full-strength
windshield washer solvent. Then rinse the blade
with water.
Check the wiper blades and clean them as necessary;
replace blades that look worn.
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