My car while driving on the highway has turned off out of nowhere while driving 60 mph while the car is still moving i put the car in neutral turn the ignition off n then back and the car turns right back on but some days this happens more then others. this problem has been going on for several months i have been in and out of the dealership. and they still to this day can't tell me what is the problem . but i have done research and there a lot of these incidents going on with gmc vehicles idk why they say they can't find problem or fix it . they just want me driving on the highway with my family when the car stalls out . this problem isn't everyday it seems to happen 3-5 times a month. i don't remember the exact dates but this problem has been going on since i got the car. if the dealer can't tell me what's wrong what am i suppose to. *tr