2001 BUICK CENTURY bulb

6-33
6. Turn the bulb socket one-quarter turn and
remove it from the lamp.
7. Lift the plastic locking tab on the electrical
connector and pull the connector from the
headlamp bulb socket.
8. Connect the new headlamp bulb to the wiring
harness, making sure the connector tab snaps
into place.
9. Insert the bulb socket into the headlamp assembly.
10. Reverse all steps to reassemble the headlamp
assembly, then check the lamps.
11. Close the hood.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.
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.

6-35
Passenger's Side Headlamp Shown
A. Horizontal Aim Adjustment Screw
B. Horizontal Block Index Plate
C. Vertical Aiming Level
Start with the horizontal aim. The adjustment screws
can be turned with an E8 Torx

socket.Once the horizontal aim is adjusted, then adjust the
vertical aim.
1. Turn the horizontal aiming screw until the indicator
is lined up with zero.
2. Turn the vertical aiming screw until the level bubble
is lined up with zero.
Front Parking and Turn Signal Lamps
1. Remove the headlamp assembly. Refer to the
removal procedure earlier in this section.
2. Remove the rubber bulb access cover.
3. Twist the sidemarker lamp socket counterclockwise
from the headlamp assembly.
4. Holding the base of the bulb, pull the old bulb from
the socket.
5. Push the new bulb into the socket.
6. Reverse Steps 1 through 3 to reinstall the
lamp assembly.

6-36 Center High-Mounted Stoplamp
1. Open the trunk.
2. Reach through the access opening in the trunk.
3. Remove the old bulb by turning it one-quarter
turn counterclockwise.
4. Place the new bulb into the bulb socket.
5. Turn the bulb one
-quarter turn clockwise to reinstall.
6. Close the trunk.

6-37 Tail/Stop/Turn Signal Lamps
1. Remove the plastic wing nuts (A). (Pliers may be
required to remove the wing nuts.)
There is one wing nut located on the outside of the
carpet. The other two are located underneath the carpet.
2. Pull the taillamp housing (B) away from the body of
the vehicle.
3. Squeeze the tab on the socket and turn the socket
counterclockwise.
4. Pull out the socket.
5. Pull the old bulb out of the socket. (There are two
bulbs on each taillamp.)
6. Push in a new bulb.
7. Reverse these steps to reinstall the lamp assembly.

6-38 Trunk Lid Applique
1. Open the trunk lid halfway.
2. Remove the wing nuts (A) from the studs on the
applique. (There are eight wing nuts. Pliers may be
required to remove them.)3. Remove the applique from the trunk lid.
4. Turn the sockets (B) counterclockwise.
5. Pull the old bulb out of the socket.
6. Push in the new bulb.
7. Reinstall the socket in the housing and
turn clockwise.
8. Connect the applique to the lid.
9. Reconnect the wing nuts to the studs on the
applique and hand
-tighten.
10. Close the trunk lid.

6-39 Back-Up Lamps
The back-up lamps are located in the trunk lid applique.
(Refer to the trunk lid applique removal procedure
earlier in this section for further instructions.)
1. Remove the trunk lid applique.
2. Twist and pull the back
-up lamp socket from the
trunk lid applique.
3. Twist and pull the old bulb from the back
-up
lamp socket.
4. Twist and push the new bulb into the back
-up
lamp socket.
5. Twist and push the back
-up lamp socket into the
trunk lid applique.
6. Reinstall the trunk lid applique.
Dome Lamp (If Equipped)
1. Grasp the front center and rear center positions
of the dome lamp housing and squeeze together
until the housing releases from the base plate.
A screwdriver may be necessary to pry the
assembly loose.
2. Lift the plastic locking tab on the electrical connector
and pull the connector from the dome lamp assembly.
3. Grasp the bulb housing located in the center of the
assembly and pull straight up.
4. Pull the old bulb out of the socket.
5. Push in a new bulb.
6. Reinstall the socket into the dome lamp assembly.
7. Reconnect the dome lamp assembly to the wiring
harness, making sure the connector tab snaps
into place.
8. Reposition the dome lamp assembly to the roof,
and gently push the assembly into the base plate.

6-64
Replacement Bulbs
Exterior Lamps Bulb Number
Back
-up 1156
Center High
-Mounted Stop 3155
Front Parking/Turn Signal 4157NAK
Headlamp, High Beam 9005
Headlamp, Low Beam 9006
Stop/Tail/Turn Signal 3057
Tail (Applique) 194
Interior Lamps Bulb Number
Dome Lamp 9425542
For service information on these bulbs, contact your
dealer service department.
Capacities and Specifications
Automatic Transaxle
Pan Removal and Replacement 7.4 quarts (7.0 L). . .
After Complete Overhaul 10 quarts (9.5 L). . . . . . .
When draining/replacing converter, more fluid will
be needed.
Cooling System
Including Reservoir11.3 quarts (10.7 L) . . . . . . . .
Refrigerant,
Air ConditioningSee the refrigerant . . . . . . . . . . .
label under the hood.
Engine Crankcase
Oil and Filter Change 4.5 quarts (4.3 L). . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Fuel Tank17 U.S. gallons (64 L) . . . . . . . . . . . . . . .
All capacities are approximate. When adding, be sure
to fill to the approximate level, as recommended in this
manual. See ªRecommended Fluids and Lubricantsº
in the Index.