2009 BUICK LACROSSE bulb

Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps
To replace a taillamp, turn signal, sidemarker, stoplamp
or back-up lamp bulb:
1. Open the trunk. SeeTrunk on page 2-12.
2. Remove the convenience net.
3. Turn the four plastic wing nuts retaining the trunk
trim counterclockwise. There are two wing nuts
located on the driver side (shown) and two located
on the passenger side of the vehicle.4. Pull back the trunk trim.
5. Turn the two wing nuts counterclockwise and
remove them.
6. Pull out the taillamp assembly and disconnect the
wiring harness.
5-50

A. Taillamp
B. Stoplamp/Taillamp/Turn
Signal LampC. Sidemarker Lamp
D. Taillamp
E. Back-up Lamp
7. Turn the bulb socket counterclockwise to remove it.
8. Pull the old bulb straight out of the bulb socket.
9. Push the new bulb straight into the bulb socket until
it clicks.
10. Turn the bulb socket clockwise to reinstall.
11. Reconnect the wiring harness.12. Push the taillamp assembly back into place on the
vehicle.
13. Turn the two wing nuts clockwise to reinstall them.
14. Place the trunk trim to its original location.
15. Turn the four plastic wing nuts clockwise to reinstall
them back into their original location.
16. Return the convenience net to its original location.
5-51

License Plate Lamp
To replace one of these bulbs:
1. Remove the screws for either of the license
plate lamps.
2. Turn and pull the license plate lamp forward
through the fascia opening.3. Turn the bulb socket counterclockwise and pull the
bulb straight out of the socket.
4. Push the bulb straight into the socket and turn the
socket clockwise.
5. Turn and push the license plate lamp back through
the fascia opening.
6. Reinstall the screws for the license plate lamp.
Replacement Bulbs
Exterior Lamps Bulb Number
Back-Up Lamps 921
Rear Sidemarker, License Plate
Lamp, and Taillamp194
Stoplamps and Taillamps 3057
For replacement bulbs not listed here, contact your
dealer/retailer.
5-52

Audio System(s).............................................3-83
Automatic Door Lock.......................................2-10
Automatic Transmission
Fluid..........................................................5-22
Operation...................................................2-26
B
Backglass Antenna........................................3-113
Battery..........................................................5-40
Electric Power Management..........................3-18
Exterior Lighting Battery Saver......................3-15
Run-Down Protection...................................3-19
Bluetooth
®.....................................................3-99
Brake
Emergencies................................................ 4-5
Brake Fluid....................................................5-37
Brakes..........................................................5-37
System Warning Light..................................3-35
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-21
Bulb Replacement...........................................5-49
Halogen Bulbs............................................5-49
Headlamp Aiming........................................5-46
License Plate Lamps....................................5-52Bulb Replacement (cont.)
Replacement Bulbs......................................5-52
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps.................5-50
Buying New Tires...........................................5-69
C
Calibration.....................................................3-54
California Fuel.................................................. 5-6
California Perchlorate Materials
Requirements............................................... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-106
Carbon Monoxide...........................2-12, 2-33, 4-17
Care of
Safety Belts................................................5-93
CD, MP3 .......................................................3-95
Center Console Storage Area...........................2-47
Center Seat..................................................... 1-7
Chains, Tire...................................................5-75
Charging System Light....................................3-35
Check
Engine Lamp..............................................3-40
Check Gas Cap Light......................................3-47
Checking Things Under the Hood......................5-10
2

Fuel (cont.)
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-46
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-47
Fuses
Fuses and Circuit Breakers...........................5-99
Instrument Panel Fuse Block.......................5-100
Underhood Fuse Block...............................5-101
Windshield Wiper.........................................5-99
G
Gage
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-46
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-43
Gasoline
Octane........................................................ 5-6
Specications............................................... 5-6
Glove Box.....................................................2-47
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp
Aiming .......................................................5-46
Headlamp Wiring............................................5-99
Headlamps
Bulb Replacement.......................................5-49
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-49
High/Low Beam Changer................................ 3-8
Suggested Light..........................................3-44
Heated Seats................................................... 1-3
Heater...........................................................3-21
Engine Coolant...........................................2-24
Heater...........................................................3-25
Highbeam On Light.........................................3-44
Highway Hypnosis...........................................4-15
Hill and Mountain Roads..................................4-16
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-13
6

Passenger Airbag Status Indicator.....................3-34
Passenger Compartment Air Filter.....................3-29
Passenger Sensing System..............................1-61
Passing.........................................................4-12
PASS-KEY
®III+ Electronic Immobilizer...............2-18
PASS-Key®III Electronic Immobilizer
Operation...................................................2-19
Perchlorate Materials Requirements,
California..................................................... 5-4
Perimeter Lighting...........................................3-18
Phone
Bluetooth
®..................................................3-99
Power
Door Locks.................................................. 2-9
Electrical System.........................................5-99
Lumbar Controls........................................... 1-3
Reduced Engine Light..................................3-44
Retained Accessory.....................................2-22
Seat ............................................................ 1-2
Steering Fluid.............................................5-34
Windows....................................................2-15
Pressure Cap.................................................5-31
Privacy..........................................................7-17
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar .......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Unlock...............2-10
R
Radiator Pressure Cap....................................5-31
Radio Frequency Identication (RFID),
Privacy......................................................7-18
Radio(s)........................................................3-83
Radios
Reception.................................................3-112
Setting the Clock.........................................3-82
Theft-Deterrent..........................................3-110
Rear Assist Handle Reading Lamps...................3-18
Rear Door Security Locks................................2-11
Rearview Mirror, Automatic Dimming..................2-35
Rearview Mirrors.............................................2-35
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-11
Recreational Vehicle Towing.............................4-26
Reduced Engine Power Light............................3-44
Remote Keyless Entry (RKE) System.................. 2-3
Remote Keyless Entry (RKE) System,
Operation..................................................... 2-4
Remote Vehicle Start........................................ 2-7
Removing the Flat Tire and Installing
the Spare Tire.............................................5-79
Removing the Spare Tire and Tools...................5-78
Replacement Bulbs.........................................5-52
Replacement Parts, Maintenance......................6-13
Replacement, Windshield.................................5-53
10