GM Service Manual Online
For 1990-2009 cars only
  1. Open the hood. See Hood Release for more information.
  2. Pull back the interior trim.

  3. Object Number: 1222606  Size: B3
  4. Remove the fasteners from the backside of the taillamp assembly.

  5. Object Number: 1222607  Size: B3
  6. Remove the taillamp assembly.
  7. Turn the bulb socket being replaced counterclockwise one-quarter of a turn while pressing the socket in firmly.
  8. Pull the socket rearward until the bulb clears the taillamp assembly.
  9. Replace it with the appropriate bulb.
  10. Reverse the steps to reinstall the taillamp assembly.