Fuel Gauge

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) displays the fuel level as determined by the PCM/ECM. The IPC receives a serial data message from the body control module (BCM) indicating the fuel level volume. The fuel gauge defaults to empty (E) if:

The PCM/ECM detects a malfunction in the fuel level sensor circuit.
The IPC detects a loss of serial data communications with the BCM.

When the fuel level is less than a certain low percentage, LOW FUEL message displays in the driver information center (DIC).