Help? My PHEV gx3h (12k miles) has stopped providing electricity to power vehicle. Display showed 7miles range which has gone up to 9 miles from last trip today. No charge mode on display but shows no pure EV mode going to power vehicle either. Seems like it is stuck on charge mode with no way to manually change? Getting 29mpg from trips. Had vehicle 8 months from new and no issues until now. Any ideas? Have I missed something simple?