turn signal bulb BUICK CENTURY 2003 Owner's Manual

Turn and Lane-Change Signals
The turn signal has two upward positions for right and
two downward positions for left. These positions
allow you to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is ®nished, the lever will return
automatically.
An arrow on the instrument
panel cluster will ¯ash in
the direction of the
turn or lane change.
To signal a lane change, just raise or lower the lever
until the arrow starts to ¯ash. Hold it there until you
complete your lane change. The lever will return by itself
when you release it.If the arrow ¯ashes faster than normal as you signal a
turn or a lane change, a signal bulb may be burned
out and other drivers won't see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you signal
a turn, check for burned-out bulbs and then check the
fuse. See
Fuses and Circuit Breakers on page 5-89.
A chime will sound if you leave your turn signal on for
more than 3/4 mile (1.2 km).
Headlamp High/Low-Beam Changer
To change your headlamps from low beams to
high beams, or high to low, pull the multifunction lever
all the way toward you. Then release it.
This light, located on the
instrument panel cluster,
will come on while the
high-beam lamps are on.
3-6

Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal ¯asher and/or extra wiring. Check
with your dealer. The arrows on your instrument
panel will ¯ash whenever you signal a turn or lane
change. Properly hooked up, the trailer lamps will also
¯ash, telling other drivers you're about to turn,
change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ¯ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It's
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around 45 mph (70 km/h) to reduce the
possibility of engine and transaxle overheating.
If you are towing a trailer, you may want to drive in
THIRD (3) instead of AUTOMATIC OVERDRIVE (
X).
Shift to a lower gear as needed.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but don't shift into
PARK (P) yet.
2. Have someone place chocks under the trailer's
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and shift to PARK (P).
5. Release the regular brakes.
4-40

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transaxle Fluid..............................5-19
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-29
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-38
Brakes........................................................5-39Battery........................................................5-42
Jump Starting...............................................5-43
Headlamp Aiming...........................................5-49
Bulb Replacement..........................................5-51
Halogen Bulbs..............................................5-51
Headlamps..................................................5-51
Front Turn Signal and Parking Lamps..............5-52
Center High-Mounted Stoplamp (CHMSL).........5-53
Taillamps, Turn Signal, and Stoplamps............5-54
Back-Up Lamps............................................5-55
Replacement Bulbs.......................................5-55
Windshield Wiper Blade Replacement..............5-56
Tires..............................................................5-57
In¯ation Ð Tire Pressure...............................5-57
Tire Pressure Monitor System.........................5-58
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-61
Buying New Tires.........................................5-62
Uniform Tire Quality Grading..........................5-63
Wheel Alignment and Tire Balance..................5-64
Wheel Replacement......................................5-64
Tire Chains..................................................5-66
If a Tire Goes Flat........................................5-66
Changing a Flat Tire.....................................5-67
Compact Spare Tire......................................5-78
Section 5 Service and Appearance Care
5-1

5. Remove the rubber access cover from behind the
bulb you are replacing.
6. Turn the bulb socket one-quarter turn and remove it
from the headlamp assembly.
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 electrical
connector, 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.
Front Turn Signal and Parking
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, located on the
outboard side of the headlamp assembly,
counterclockwise and pull it from the headlamp
assembly.
4. Holding the base of the socket, 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.
5-52

Taillamps, Turn Signal, and
Stoplamps1. Open the trunk.
2. If your vehicle is equipped with a convenience net,
remove it.
3. Remove the three plastic wing nuts (A).
There is one wing nut located on the outside of the
carpet. The other two are located underneath
the carpet.
4. Pull the taillamp housing (B) away from the body of
the vehicle.
5. Squeeze the tab on the socket and turn the socket
counterclockwise.
6. Pull out the socket.
7. Pull the old bulb out of the socket. (There are two
bulbs on each taillamp.)
8. Push in a new bulb.
9. Reverse these steps to reinstall the lamp assembly.
5-54

Back-Up Lamps
1. Open the trunk lid.
2. Remove the seven wing nuts (A) from the lamp
covering.
3. Remove the lamp covering.4. Twist and pull the bulb socket (B) from the trunk lid.
5. Twist and/or pull the old bulb from the bulb
socket.
6. Twist and/or push the new bulb into the lamp
socket.
7. Twist and/or push the lamp socket into the trunk lid
covering.
8. Reverse Steps 2 and 3 to reinstall the lamp
covering.
Replacement Bulbs
Exterior Lamps Bulb Number
Back-Up 1156
Center High-Mounted Stoplamp
(CHMSL)3155
Front Turn Signal and Parking
Lamps4157NAK
Headlamps, High Beam 9005
Headlamps, Low Beam 9006
Taillamps and Stoplamps/Turn
Signal3057
Taillamp 194
For any bulb not listed here contact your dealer.
5-55

B
Backing Up....................................................4-39
Battery Replacement......................................... 2-8
Battery Rundown Protection.............................3-15
Battery..........................................................5-42
Before Leaving on a Long Trip.........................4-23
Body Lubrication Service..................................6-11
Brake Fluid....................................................5-39
Brake Wear...................................................5-41
Brake............................................................2-26
Parking......................................................2-26
System Inspection.......................................6-15
System Warning Light..................................3-27
Brakes..........................................................5-39
Braking in Emergencies..................................... 4-9
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-51
Back-Up Lamps...........................................5-55
Center High-Mounted Stoplamp (CHMSL)........5-53
Front Turn Signal and Parking Lamps.............5-52
Halogen Bulbs............................................5-51
Headlamp Aiming........................................5-49
Headlamps.................................................5-51
Replacement Bulbs......................................5-55
Taillamps, Turn Signal, and Stoplamps............5-54
Buying New Tires...........................................5-62
C
California Fuel.................................................. 5-6
Canada ± Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations............................5-94
Carbon Monoxide...................4-26, 4-35, 2-13, 2-30
Care of.........................................................5-82
Safety Belts................................................5-82
Your Cassette Tape Player............................3-51
Your CD Player...........................................3-52
Your CDs ...................................................3-52
Cassette Tape Messages.................................3-45
Cassette Tape Player Service...........................6-10
Center High-Mounted Stoplamp (CHMSL)...........5-53
Center Passenger Position, Safety Belts.............1-22
Chains, Tires..................................................5-66
Charging System Light....................................3-26
Checking Coolant............................................5-24
Checking Engine Oil........................................5-13
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-63
Check...........................................................3-31
Engine Light...............................................3-31
Chemical Paint Spotting...................................5-85
Child Restraints..............................................1-36
Child Restraint Systems...............................1-36
2

FM ...............................................................3-50
Folding Rear Seat............................................ 1-6
Following Distance..........................................4-39
Footnotes........................................................ 6-5
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-37
Gasoline Octane........................................... 5-5
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-38
System Inspection.......................................6-14
Fuses...........................................................5-89
Fuses and Circuit Breakers...........................5-89
Windshield Wiper.........................................5-88
G
Gage............................................................3-30
Engine Coolant Temperature.........................3-30
Fuel..........................................................3-37
Speedometer..............................................3-24
Gasoline......................................................... 5-5
Octane........................................................ 5-5
Speci®cations............................................... 5-5Glove Box.....................................................2-35
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
H
Hazard Warning Flashers................................... 3-3
Head Restraints............................................... 1-5
Headlamp High/Low-Beam Changer.................... 3-6
Headlamp Wiring............................................5-88
Headlamp......................................................5-49
Aiming.......................................................5-49
Headlamps....................................................5-51
Bulb Replacement.......................................5-51
Front Turn Signal and Parking Lamps.............5-52
Halogen Bulbs............................................5-51
Highway Hypnosis...........................................4-24
Hill and Mountain Roads..................................4-24
Hitches..........................................................4-38
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-4
How to Add Coolant to the Coolant
Recovery Tank............................................5-31
How to Add Coolant to the Radiator..................5-33
How to Add Fluid............................................5-22
6