ON THREE OCCASIONS BRAKES HAVE LOST PRESSURE TO HYDRAULIC SYSTEM. ON LAST INCIDENT ACCIDENT WAS THE RESULT OF LOSING BRAKING ENTIRELY. SINCE SYSTEM TOTALLY FAILED AND INSPECTION OF BRAKING COMPONENTS,EXCLUDING ABS, HAVE NOT UNCOVERED DEFECT IT,BUT LIGHT ON ABS SYSTEM HAS TURNED ON -INDICATING SYSTEM PROBLEM - I BELIEVE ABS COMPONENTS MAY BE FAULTY