Buick LaCrosse: Bulb Replacement

Buick LaCrosse: Bulb Replacement

For the proper type of replacement bulbs, see Replacement Bulbs.

For any bulb changing procedure not listed in this section, contact your dealer.

• Halogen Bulbs
• High Intensity Discharge (HID) Lighting
• Headlamps, Front Turn Signal and Parking Lamps
• Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
• License Plate Lamp
• Replacement Bulbs

Halogen Bulbs

WARNING!
Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

High Intensity Discharge (HID) Lighting

WARNING!
The low beam high intensity discharge lighting system operates at a very high voltage.
If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.

After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.

Headlamps, Front Turn Signal and Parking Lamps

Base Headlamp Assembly

The base model vehicle has a halogen high-beam headlamp, a low-beam/Daytime Running Lamp (DRL) headlamp, and a turn signal/parking lamp on the headlamp assembly.

For replacement of the turn signal/parking lamp bulb on an eAssist vehicle, contact your dealer.

To replace one of these bulbs:

1. Open the hood. See Hood.

A. Low-Beam Headlamp/DRL
B. High-Beam Headlamp
C. Parking/Turn Signal Lamp

2. If replacing a headlamp bulb, remove the dust cover from the back of the headlamp housing by turning counterclockwise one-quarter turn.

3. If replacing a turn signal/parking lamp bulb on a non-eAssist vehicle, remove the close out panel push pins and close out panel covering the bulb socket.

4. Remove the bulb socket from the headlamp by turning counterclockwise one-quarter turn.

5. Remove the bulb from the socket. If replacing the high/low-beam bulb, pry the two clips on either end of the bulb and pull straight out.

6. Install the new bulb in the socket.

7. Install the bulb socket by turning clockwise one-quarter turn.

8. If a headlamp bulb was replaced, install the dust cover in the back of the headlamp housing by turning clockwise one-quarter turn.

Uplevel Headlamp Assembly

The uplevel model vehicle has a high intensity discharge (HID) high/low beam, a dedicated DRL, and a parking/turn signal lamp on the headlamp assembly. See High Intensity Discharge (HID) Lighting for more information.

To replace one of these bulbs:

1. Open the hood. See Hood.

A. DRL Lamp
B. Parking/Turn Signal Lamp

2. Turn the bulb socket counterclockwise to remove it from the headlamp assembly.

3. Pull the bulb straight out from the socket.

4. Push the new bulb into the socket and reinstall the socket into the headlamp assembly by turning it clockwise.

Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps

A. Back-Up Lamp
B. Turn Signal Lamp

To replace one of these lamps:

1. Open the trunk. See Trunk.

2. Remove the fasteners and pull back the trunk trim.

3. Remove the four plastic wing nuts holding the taillamp assembly in place.

4. Pull out the taillamp assembly and disconnect the wiring harness.

5. Turn the bulb socket counterclockwise to remove it.

6. Pull the old bulb straight out of the bulb socket.

7. Reverse Steps 1 through 6 to install.

License Plate Lamp

The license plate lamps for this vehicle are on the trunk lid.

To replace one of these bulbs:

1. Open the trunk. See Trunk for more information.

2. Push the end on either of the lamp assemblies (passenger side shown) and then move the lamp assembly down to remove it from the trunk lid.

A. Bulb Socket
B. Bulb
C. Lamp Assembly

3. Turn the bulb socket (A) counterclockwise to remove it from the lamp assembly (C).

4. Pull the bulb (B) straight out of the bulb socket.

5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.

6. Move the lamp assembly into the trunk lid, engaging the clip side first.

7. Push on the lamp side opposite the clip until the lamp assembly snaps into place.

Replacement Bulbs

For replacement bulbs not listed here, contact your dealer.

Headlamp AimingElectrical System