GM Service Manual Online
For 1990-2009 cars only

To replace a back-up lamp bulb:

  1. Open the trunk. See Trunk .

  2. Object Number: 1401636  Size: B3
  3. Pull out the push pins holding down the top portion of the cloth cover.
  4. Fold the cover down slightly and locate the lamp assembly.
  5. Turn the socket counterclockwise and pull it straight out to remove it from the lamp assembly.
  6. Pull the old bulb straight out and reinstall the new bulb.
  7. Put the cover back in place and reinstall the push pins.