Any update on what the exact issue was? Transmission or battery? You never solved the puzzle for us.
Earlier in the week while putting the car into reverse, then in drive, I got the wrench check engine light. It said "see manual". Car wouldn't drive and the shifter had little resistance when going from drive to park. I restarted 3 times, and everything finally worked. No light, everything normal.
The manual states that its the "charging system or drivetrain" I believe.
Anyone else? I'll keep googling.