GM Service Manual Online
For 1990-2009 cars only
  1. Open the liftgate and the tailgate. See Liftgate/Tailgate for more information.

  2. Object Number: 807210  Size: A3
  3. Remove the two screws from the taillamp housing.
  4. Turn the lamp outboard, then pull the assembly firmly rearward.

    1. Object Number: 805578  Size: A3

      Stop/Taillamps

      Back-up Lamps

  5. Unscrew the bulb socket from the lamp assembly by pressing the tab while turning the bulb socket counterclockwise.
  6. Replace the bulb by pulling the old one out and gently pushing the new one into the bulb socket.
  7. Line up the tabs on the bulb socket with the gaps in the socket holes and screw the bulb socket back into the lamp housing. You will hear a click.
  8. Reinstall by aligning the pins on the back of the lamp with the sockets on the outboard side of the lamp opening.
  9. Push forward until the pins snap into the socket.
  10. Reinstall the screws removed in Step 2.