GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 777768  Size: SH
  1. Open the hood.
  2. Remove the headlamp motor/actuator cover from the knob.
  3. Rotate the headlamp motor/actuator manual control knob counterclockwise to raise the headlamp.

  4. Object Number: 64644  Size: SH
  5. Disconnect the headlamp wiring harness electrical connector from the forward lamp wiring harness.

  6. Object Number: 64684  Size: SH
  7. Remove the headlamp bezel. Refer to Headlamp Bezel Replacement .
  8. Caution: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

       • Turn off the lamp switch and allow the bulb to cool before changing the bulb.
       • Leave the lamp switch OFF until the bulb change is complete.
       • Always wear eye protection when changing a halogen bulb.
       • Handle the bulb only by its base. Avoid touching the glass.
       • Keep dirt and moisture off the bulb.
       • Properly dispose of the used bulb.
       • Keep halogen bulbs out of the reach of children.

  9. Reach through the opening between the headlamp assembly and the frame rail to access the headlamp bulb/socket.
  10. Rotate the headlamp bulb/socket counterclockwise to remove it from the headlamp capsule.
  11. Disconnect the electrical connector from the headlamp bulb/socket.

Installation Procedure


    Object Number: 64684  Size: SH
  1. Connect the electrical connector to the headlamp bulb/socket.
  2. Install the headlamp bulb/socket to the headlamp capsule rotating clockwise until fully seated.
  3. Install the headlamp bezel. Refer to Headlamp Bezel Replacement .

  4. Object Number: 64644  Size: SH
  5. Rotate the headlamp motor/actuator manual control knob clockwise to lower the headlamp.
  6. Connect the headlamp wiring harness electrical connector to the forward lamp wiring harness.

  7. Object Number: 777768  Size: SH
  8. Install the headlamp motor/actuator knob cover.
  9. Check and adjust the headlamp aim as necessary. Refer to Headlamp Aiming .
  10. Close the hood.