GM Service Manual Online
For 1990-2009 cars only

To replace a taillamp bulb, do the following:

  1. Open the tailgate. See Tailgate for more information.

  2. Object Number: 809091  Size: A3
  3. Remove the two taillamp assembly screws near the tailgate latch.

    1. Object Number: 808942  Size: A3

      Stoplamp

      Turn Signal

      Back-up Lamp

  4. Pull out the taillamp assembly.

  5. Object Number: 808945  Size: B3
  6. Press the release tab, if the vehicle has one, and turn the bulb socket counterclockwise to remove it from the taillamp housing.
  7. Pull the old bulb straight out from the socket.
  8. Press a new bulb into the socket and turn the socket clockwise into the taillamp housing until it clicks.
  9. Reinstall the taillamp assembly.