GM Service Manual Online
For 1990-2009 cars only

After an airbag inflates or if there is a right side impact, the automatic battery disconnect will open and the 42-volt battery will be disconnected. The 42-volt electrical power to the vehicle will be off and the vehicle will not start. To operate the vehicle, the automatic battery disconnect must be reconnected by a qualified service technician at your dealership. Have your vehicle serviced right away.