BUICK PARK AVENUE 2001 Owner's Manual

6-38
To check the aim, 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.
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.
1. Turn the horizontal
aiming screw (A)
until the
indicator (B) is
lined up with zero.

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2. Turn the vertical aiming screw (C) until the level
bubble (D) is lined up with zero.Front Turn Signal
1. Remove the headlamp assembly as described in the
headlamp removal procedure previously in this section.
2. Once the headlamp
assembly has been
removed, reach down
from the top of the
vehicle and, while
pressing the lock tab on
the socket, turn the
socket one
-quarter turn
counterclockwise and
pull it out.
3. Remove the old bulb by pulling it straight out
of the socket.
4. Replace the bulb and turn the bulb assembly back
into place.

6-40 Rear Quarterpanel Turn Signal Lamps
and Stoplamps
There are turn lamps and stoplamps that are part of the
taillamp assembly located at the rear of the vehicle on
each rear quarterpanel. The following instructions
explain how to access these bulbs. (To access the lamps
located on the trunk lid see the information following.)
1. Open the trunk. On either side of the rear of the
trunk is a plastic retainer that holds the cargo net and
taillamp assembly in place.
2. Unhook the cargo net
from the cargo net
retainer and remove the
retainer by turning
it counterclockwise.
3. Remove the plastic retaining screws on the
trunk's interior.
4. Pull back the trunk trim panel.
5. Beneath the trim panel are three nuts that secure
the taillamp assembly. Remove these nuts with a
10 mm wrench. Remove the nuts only from the side
you want to access. The turn signal and a stoplamp
can now be accessed.

6-41
6. Pull the taillamp assembly away from the vehicle.
7. Remove the bulb socket
assembly by turning the
socket one
-quarter turn
counterclockwise and
pulling it out.
8. Once the socket has
been removed, pull the
bulb straight out to
remove it from
the socket.
9. Replace it with a new bulb.
10. Reverse Steps 1 through 8 to reinstall the
taillamp assembly.

6-42 Trunk-Mounted Rear Turn Signals,
Stoplamps and Back-Up Lamps
There are turn lamps, stoplamps and back-up bulbs
located behind the taillamp assembly along the trunk lid.
The following instructions explain how to access
these bulbs.
1. There are four studs
located at the edge of the
trunk lid. Remove the
protective vinyl caps
from the studs.
2. Use a 10 mm wrench to remove the nuts from
the studs.

6-43
3. Next, remove the six fasteners along the top of the
trunk lid (three on each side), holding the trunk trim
in place.4. Pull the trunk trim back to expose the three remaining
nuts holding the taillamp assembly in place. Remove
the protective vinyl caps from the studs.

6-44
5. From inside the trunk compartment, use a 10 mm
wrench to remove the nuts from the studs.6. Pull the taillamp assembly away from the trunk lid.
The bulbs are located on the back side of the assembly.

6-45
7. Turn the bulb socket
one
-quarter turn
counterclockwise and
pull it out. You can use
pliers to remove the bulb
socket if you are unable
to do it by hand.
8. Once the socket has
been removed, pull the
bulb straight out to
remove it from
the socket.
9. Replace it with a new bulb.
10. Reverse Steps 1 through 8 to reinstall the
taillamp assembly.
Windshield Wiper Blade Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See ªWiper Blade
Checkº in the Index for more information.
Replacement blades come in different types and are
removed in different ways.
To replace the wiper blade assembly, do the following:
1. Position the wipers on the windshield in the
ªmidº wipe position.
2. Lift the windshield wiper arm away from the
windshield. The windshield wiper does not have a
locking upright position feature.

6-46
3. Push the tab on the wiper blade assembly and pull
the assembly down enough to release it from the
ªUº hooked end of the wiper arm. Slide the
assembly away from the arm.
4. Replace the blade.
5. To reinstall the wiper blade assembly, slide it over
the wiper arm to engage the ªUº hooked end on the
wiper blade assembly. Pull up on the assembly to
lock it into place.
For the correct windshield wiper blade replacement
length and type, see ªNormal Maintenance Replacement
Partsº in the Index.
Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service, see
your Buick Warranty booklet for details.
CAUTION:
Poorly maintained and improperly used tires
are dangerous.

Overloading your tires can cause
overheating as a result of too much friction.
You could have an air
-out and a serious
accident. See ªLoading Your Vehicleº in
the Index.

Underinflated tires pose the same danger as
overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
CAUTION: (Continued)

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CAUTION: (Continued)

Overinflated tires are more likely to
be cut, punctured or broken by a sudden
impact
-- such as when you hit a pothole.
Keep tires at the recommended pressure.

Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.
Inflation -- Tire Pressure
The Tire-Loading Information label, which is located on
the rear edge of the driver's door, shows the correct
inflation pressures for your tires when they're cold.
ªColdº means your vehicle has been sitting for at least
three hours or driven no more than 1 mile (1.6 km).
NOTICE:
Don't let anyone tell you that underinflation or
overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can
get the following:

Too much flexing

Too much heat

Tire overloading

Bad wear

Bad handling

Bad fuel economy.
If your tires have too much air (overinflation),
you can get the following:

Unusual wear

Bad handling

Rough ride

Needless damage from road hazards.