Hi,   I recently bought a Ford C-Max Energi I had a yellow wrench signal come one, so decreased power though. When I turned the car off and back on it had gone away. I took it to the mechanic and they read the error code (P0dd6) and said one that indicates one of the batteries needs replacing but they couldn't tell me which one although they think it’s the electric one. Is there any chance this is a weird glitch that a software update might resolve or maybe the 12v batter