GM Service Manual Online
For 1990-2009 cars only

To replace one of these bulbs, do the following:

  1. Push tabs to remove the license plate lamp from the liftgate.

  2. Object Number: 1708173  Size: B3
  3. Turn the bulb socket counterclockwise and pull the bulb straight out of the socket.
  4. Push the bulb straight into the socket and turn it clockwise to lock into place.
  5. Reinstall the license plate lamp into the liftgate.