GM Service Manual Online
For 1990-2009 cars only
  1. Once the headlamp assembly has been removed, reach down from the top of the vehicle, and while pressing the lock tab on the socket, turn the socket one-quarter turn counterclockwise and pull it out.

  2. Object Number: 810925  Size: A3
  3. Remove the old bulb by pulling it straight out of the socket.
  4. Replace the bulb and turn the bulb assembly back into place.