There is a known fault with the energy management system which could be the cause of this. Just ask your dealer and he will tell you there are many software fixes for your car, and one of this is the energy management. Takes them 30 minutes, and off you go.Any one else ever get that warning message in the driver's information system?
So I was driving for about 2 hours when it came on the first time, shut the car off waited a couple minutes, turned it back on and everything was back to normal until it came on again about 20 mins later. repeated this cycle about 5 or 6 times.
Needless to say the car will be back at the dealer ASAP, I just broke 500 miles on it. A litttle agravated . . . .