Fuel System Message Displays

The IPC provides a check fuel fill inlet message to warn the driver there is a problem with the fuel fill inlet pipe resulting in a significant evaporative emission leak following vehicle refueling.

On plug-in hybrid vehicles, the IPC provides a message to inform the driver the engine needs to run to maintain fuel freshness and a message to inform the driver the fuel door is locked shut until the fuel evaporative emissions system equalizes pressure. This is to prevent rapid equalization since the fuel system can be under emissions-related vacuum or pressure during operation. The warning provides the reason the fuel door is locked while the fuel system gradually equalizes.

The IPC receives the check fuel fill inlet message request, the refuel system status display and the fuel maintenance mode display messages from the GWM over the Infotainment Controller Area Network (I-CAN).

The GWM receives the check fuel fill inlet message request and the refuel system status display message from the PCM over the HEV - CAN.

The GWM receives the fuel maintenance mode display message from the SOBDMC over the HEV - CAN.