GM Service Manual Online
For 1990-2009 cars only

The following accessories on your vehicle may be used for up to 20 minutes after the engine is turned off:

    • Radio
    • Power Windows
    • Audio Steering Wheel Controls

Power to these accessories stops after 20 minutes or if one of the front doors is opened. If you want power for another 20 minutes, close all the doors and press the OFF/ACCESSORY button to place the vehicle in accessory mode. Press the button again and the vehicle will return to RAP.