Turn Signal problems of the 2009 Saturn VUE

While driving down road acceleration slowed, all instrument panel lights came on, loss full power steering & brake functions, no turn signals, brake lights, fuel gauge went to empty, messages on driver air bag, stabilitrak,tire air pressure,abs, everything was flashing. All instrument panel lights were on, radio stopped, sudden increased acceleration then decreased again. I got pulled over to a parking lot (which was very hard with brake pedal going to floor & steering almost impossible), turned off car & removed key. Still had all (4) open door lights on and all the doors were shut. They stayed on more than 5 minutes before finally going off. I sat there 30 minutes before trying to start the car again. When I started it everything was working again as if it had reset itself. Yesterday August 31, 2015 was the third time this same thing has happened to me while driving at 45 mph or more. This is extremely dangerous as I drive daily on heavily traveled parkways. Dealerships can not find a problem when I take it to them. They just want to reset the electrical system. It just occurs again so that is not the solution. Need help getting this resolved.