Installation Procedure

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

Install the bulb to the IP courtesy lamp socket.
Install the IP courtesy lamp socket to the IP insulator. Rotate the socket clockwise to secure correctly.
Install the IP insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - RIGHT or CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages, and Console.

Fig 1: Installing Instrument Panel Courtesy Lamp
Courtesy of GENERAL MOTORS CORP.