If the control module's built-in ground fault breaker is tripped then the car symbol illuminates with red constant glow - check the 230 VAC socket.
Charging the hybrid battery must only take place with grounded and approved 230 VAC sockets. If the capacity for the socket or fuse circuit is unknown, ask a licensed electrician to check the capacity. Charging above the capacity of a fuse circuit may lead to fire or damage the fuse circuit.
The ground fault breaker does not protect the 230 VAC socket/electrical installation.