All-Wheel Drive (AWD) Disable Indicator
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The AWD disable indicator is located in the instrument panel cluster (IPC). This lamp is used to inform the driver that the AWD system has been disabled and no torque will be applied to the rear wheels during a slip condition. The AWD disable indicator is controlled by the PCM/TCM via a class 2 message.