TL*THE CONTACT OWNS A 2008 NISSAN SENTRA. WHILE DEPRESSING THE BRAKE PEDAL AT 5 MPH, THE CONTACT COULD NOT STOP THE VEHICLE. IT ACCELERATED BACKWARDS AND CAUSED HER TO CRASH INTO ANOTHER VEHICLE. THERE WERE NO WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT CONTROL PANEL PRIOR TO THE FAILURE. THE VEHICLE SUSTAINED MINIMAL DAMAGE. SHE NOTIFIED THE DEALER AND IS AWAITING THEIR RESPONSE. A POLICE REPORT WAS FILED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 10,000.