Low Fuel
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the LOW FUEL message in the driver information center (DIC) when the PCM detects that the fuel level is less than a pre-determined value. The IPC receives a class 2 message from the PCM indicating the fuel level.