I was driving about 15 mph when the brake suddenly completely stopped functioning. The pedal went all the way down to the floor board and I went right through a red light at like 5 -10 mph. Had a car been coming there would for sure had been an accident. I pulled, turned the vehicle off and inspected it. Nothing seemed out f place. When i turned it back on it worked perfectly. Drove it slowly to the nearest mechanic and he found nothing wrong with the car at all.