GM Service Manual Online
For 1990-2009 cars only

To replace a headlamp or front turn signal bulb, do the following:

  1. Open the hood. See Hood Release for more information.
  2. Lift the inner quick release clips.
  3. Pull the headlamp assembly away from the vehicle.

  4. Object Number: 1225456  Size: B3
  5. Remove the cover from the headlamp bulb.
  6. Disconnect the wiring harness (C).
  7. Remove the headlamp bulb (A) or front turn signal bulb (B) by turning the socket counterclockwise.
  8. Reinstall by reversing Steps 1 through 6.