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. Open the trim cover by releasing the clip at the top of the cover.

    1. Object Number: 1202631  Size: B3

      Stoplamp/Taillamp

      Turn Signal Lamp

      Back-up Lamp

  3. Remove the bulb socket by turning it counterclockwise.
  4. Remove the bulb from the socket by pressing the bulb and turning it counterclockwise.
  5. Install the appropriate bulb into the socket.
  6. Replace the bulb socket into the lamp housing. Twist the bulb socket clockwise to secure.
  7. Close the trim cover.