I was driving my vehicle, the roads were snowy so was traveling slowly. I attempted to slow down a little more, when I pushed on the brake there was absolutely no response, usually you can feel and even hear the brakes (abs) functioning, there was nothing. I also tried to steer, again, no response, the vehicle continued straight, we went into a ditch and rolled on our side. I tried to put down a window but all dash lights, etc were off and car was not running. I pushed the "start button" dash lights came on, could roll down windows, etc... and the car even starts and runs now. It seems as though there was no "control" of any kind, we were going slow and I even had time to tell my passenger, "be prepared, hold on"...