GM Service Manual Online
For 1990-2009 cars only

To replace the back-up and/or license plate lamps, use the following procedure:

  1. Open the liftgate.
  2. Remove the liftgate trim panel on the interior of the liftgate by pulling the trim panel snap-in fasteners out of the retainers and also by using a tool to remove the screw on the bottom right side of the trim panel.
  3. Disconnect the courtesy lamp electrical connector on the trim panel.
  4. Use a tool to remove the five nuts on the back of the license plate applique assembly.
  5. Remove the license plate applique assembly from the liftgate by pulling the assembly rearward to disengage the two snap-in retainer clips at the back of the license plate applique assembly near the liftgate panel.
  6. For the back-up lamp, turn the bulb socket one-quarter turn counterclockwise to remove.
  7. For the license lamp, slide the license lamp assembly out of the license plate applique assembly, and turn the bulb socket one-quarter turn counterclockwise to remove.

  8. Replace the bulb. See Replacement Bulbs for the proper bulb number.
  9. Reverse Steps 1 through 6 to reinstall the license plate applique assembly.