Fuel Filler Door Release (if equipped - hybrid vehicles)

The PCM sends a voltage signal to the fuel filler door release switch located on the headlamp switch. When the button is pressed, the signal is routed to a return circuit, indicating a request to release the fuel filler door latch.

When the PCM detects the fuel filler door release switch is pressed, it checks the fuel tank for excessive fuel vapor pressure. If excess fuel tank vapor pressure is detected, the PCM activates a pump to remove the excess pressure.

When the PCM detects the excess pressure is removed, it provides voltage and ground to the fuel filler door release solenoid, releasing the fuel filler door latch. The process to release the fuel filler door can take as long as 15 seconds.

In the event the electronic fuel filler door release system fails, the fuel filler door latch can be released manually using the manual fuel filler door release lever.