GM Service Manual Online
For 1990-2009 cars only

To replace a back-up bulb, do the following:

  1. Open the trunk. See Trunk for more information.

  2. Object Number: 809770  Size: B4
  3. Remove the seven hex nuts (A) from the lamp covering.
  4. Remove the lamp covering.
  5. Twist and pull the bulb socket (B) from the lamp assembly.
  6. Twist and pull the old bulb from the bulb socket.
  7. Twist and push the new bulb into the lamp socket.
  8. Twist and push the lamp socket into the lamp assembly.
  9. Reverse Steps 2 and 3 to reinstall the lamp covering.