GM Service Manual Online
For 1990-2009 cars only

To replace one of these bulbs, do the following:

  1. Open the trunk. See Trunk for more information.
  2. Remove the fastener which holds down the trunk trim.
  3. Remove the outer two screws from the taillamp assembly.
  4. Disconnect the wiring harness by lifting up on the tab to release and pull it straight out.
  5. Remove the taillamp from the quarter panel.

    1. Object Number: 1538466  Size: B3

      Sidemarker

      Stoplamp/Turn Signal/Taillamp

      Back-up

  6. Locate the bulb you wish to change
  7. Remove the taillamp bulb socket from the assembly by turning it counterclockwise.
  8. Pull the old bulb out of the socket.
  9. Install a new bulb.
  10. Reverse Steps 1 through 6 to reinstall the taillamp assembly.