GM Service Manual Online
For 1990-2009 cars only

To replace a stoplamp/taillamp or turn signal bulb:

  1. Open the liftgate. See Liftgate/Liftglass .

  2. Object Number: 1696628  Size: A3

    Remove the two screws from the taillamp assembly.

  3. Pull the assembly away from the vehicle.

  4. Object Number: 1696625  Size: B3
  5. Unclip the wiring harness (A) and remove the three socket retaining screws (B).
  6. Remove the socket plate.
  7. Holding the socket, pull the bulb to straight out release it from the socket.
  8. Push the new bulb into the socket until it clicks.
  9. Reinstall the socket plate and three screws.
  10. Reconnect the wiring harness.
  11. Reinstall the taillamp assembly by lining up the locator pins with the retainers in the body of the vehicle.
  12. Reinstall the two screws.