2011 Hyundai Genesis cruise control problems

On 8/16/11, while driving down a couple of hills on my brakes, approaching a car & stop sign at an intersection a little over 2 blocks away, I pressed down harder on the brake pedal to come to a complete stop. The car, a new, 2011 hyundai genesis, would not stop. I continued to press harder and harder on the brake, but the car would not stop. It just continued at to move at the speed I was driving down the hill, approximately 15-20 MPH. As a result, the car rolled directly into the car sitting at the stop sign.

Tl*the contact owns a 2011 hyundai genesis. The contact stated while attempting to park, the vehicle suddenly accelerated causing the contact to crash into a wall on april 23, 2011. On june 3, 2011 while approaching a stop sign, the vehicle accelerated through the stop sign and struck another vehicle on the rear fender. A police report was filed. The contact and passenger were not injured. The dealership was contacted and stated that they had never heard of that type of failure.