Removal Procedure

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

Remove the left sail trim panel. Refer to SAIL PANEL REPLACEMENT in Interior Trim.
Disconnect the electrical connectors (2) from the module (3).
Disconnect the antenna coax cable (1) from the module (3).

Fig 1: Disconnecting Components From Module
Courtesy of GENERAL MOTORS CORP.
Remove the bolt (1).
Disengage the tab on the module (2) from the slot in the sail panel.

Fig 2: Disengaging Tab On Module From Slot In Sail Panel
Courtesy of GENERAL MOTORS CORP.