Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Record all of the vehicle preset radio stations.
Turn OFF all the lamps and the accessories.
Record the customer's radio Theftlock® code (if applicable). Refer to RADIO/AUDIO SYSTEM DESCRIPTION AND OPERATION .
Make sure the ignition switch is in the OFF position.
Disconnect the battery negative cable from the battery.

Fig 1: Disconnecting Negative Battery Cable
Courtesy of GENERAL MOTORS CORP.