I was driving and all of the sudden I was unable to accelerate. The console chimed and said required action shift to park. I stopped the car (luckily I was in a place to do so since I was unable to accelerate). The car then would do nothing. The engine light was on, the car had power (I had 100% battery and 60% gas left. I had been driving in hold mode. I turned it off and back on and put it into drive and it would not move. I let is set awhile and it finally let me drive but the engine light stayed on. Onstar said something like that the hybrid propulsion system failed, and something that had to be serviced immediately and another thing within 7 days. This car is less than a week old and 200 total miles. This trip was 60 miles and the first long trip where I used gas. This is extremely disappointing but I am most concerned of the safety hazard... This is as bad as brakes going out to me, all of the sudden without warning you can't accelerate.. thank goodness I was in a place I could just pull off the road.