Removal Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Open the compartment lid.
Remove the appropriate side trim panel. Refer to COMPARTMENT TRIM PANEL REPLACEMENT - REAR in Body Rear End.
Remove the tail lamp assembly (3). Refer to TAIL LAMP REPLACEMENT .
Twist the back up bulb socket counter clockwise 1/4 turn to remove the socket from the tail lamp assembly (3).
Remove the back up bulb from the socket.

Fig 1: Removing Backup Lamp Bulb
Courtesy of GENERAL MOTORS CORP.