TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 2500 HD. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT NOTICED A DEER IN THE ROAD AND IMMEDIATELY ENGAGED THE BRAKE PEDAL.THE BRAKES DID NOT RESPOND AND THE VEHICLE CONTINUED TO ACCELERATE. THE VEHICLE WAS DRIVEN OFF THE ROAD AND OVER A DITCH IN ORDER TO STOP AND AVOID CRASHING INTO THE DEER. THE CONTACT SUFFERED NO PERSONAL INJURY. THE VEHICLE SUSTAINED NO DAMAGE AND WAS TOWED TO THE RESIDENCE. THE CONTACT INSPECTED THE VEHICLE AND STATED THAT THE REAR BRAKE LINE WAS COMPLETELY RUSTED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE DEFECT. THERE WAS AN OPEN AND CLOSED INVESTIGATION FOR THE FAILURE UNDER NHTSA ACTION NUMBER: DP10003 (SERVICE BRAKES, HYDRAULIC). THE APPROXIMATE FAILURE MILEAGE WAS 144,000.