NHTSA complaint: 1999 GMC SIERRA — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
WHILE DRIVING OVER BUMPS BRAKING SYSTEM MALFUNCTIONED, CAUSING BRAKE PEDAL TO PUSH UPWARD. THERE WAS NO BRAKING ABILITY WHICH CAUSED A CRASH. DEALER WAS AWARE OF THE PROBLEM, BUT COULD NOT DETERMINE HOW TO FIX THE PROBLEM. PLEASE PROVIDE FURTHER INFORMATION.*AK
National Highway Traffic Safety Administration — Office of Defects Investigation