Removal Procedure

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

Remove the front door trim panel enough to access the courtesy lamp. Refer to TRIM PANEL REPLACEMENT - SIDE FRONT DOOR in Doors.
Disconnect the electrical connector from the courtesy lamp.

Fig 1: Disconnecting Electrical Connector From Courtesy Lamp
Courtesy of GENERAL MOTORS CORP.
Release the courtesy lamp by depressing the forward retainer.

Fig 2: Releasing Courtesy Lamp By Depressing Forward Retainer
Courtesy of GENERAL MOTORS CORP.
Remove the courtesy lamp out of the front door trim panel, by pressing outward on the courtesy lamp and pulling out from the front of the door trim panel.

Fig 3: Removing Courtesy Lamp Out Of Front Door Trim Panel
Courtesy of GENERAL MOTORS CORP.
Rotate the lamp socket counterclockwise to release the socket from the lamp housing, then remove the socket.

Fig 4: Rotating Lamp Socket Counterclockwise To Releasing Socket From Lamp Housing
Courtesy of GENERAL MOTORS CORP.
Remove the bulb from the socket.

Fig 5: Removing Bulb From Door Courtesy Lamp Socket
Courtesy of GENERAL MOTORS CORP.