I had the same problem happen last night. I was on the highway and it startes decelerating until it finally stopped and would not start again. It was about 11 oclock at night so I had it towed home and the dealer will not pay the towing cost. Now I have to have it towed again to the dealer so they can look at it. Not to mention that I have to miss work for it! It's ridiculous im not happy at all with this car!