1993 GMC SUBURBAN — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

ON DRY, SMOOTH PAVEMENT MY WIFE WAS UNABLE TO PREVENT AN ACCIDENT BECAUSE OF THE ANTILOCK BRAKE SYSTEM. THE DRIVER IN FRONT OF MY WIFE CHANGED HIS MIND ABOUT ENTERING A LEFT TURN LANE AND WHIPPED HIS CAR BACK IN FRONT OF MY WIFE. BOTH THE DRIVER OF THE OTHER CAR AND MY WIFE THOUGHT THERE WAS ENOUGH SPACE BETWEEN THE VEHICLES TO AVOID AN ACCIDENT. SHE APPLIED THE BRAKES ONLY TO DISCOVER THE CAR WOULD NOT DE-ACCELERATE QUICK ENOUGH. SHE HAD BOTH FEET ON THE BREAK PEDAL AT THIS TIME. THE DEALER CHECKED THE ANTILOCK SYSTEM AND REPORTED IT WAS "FUNCTIONING AS DESIGNED". I PULLED THE FUSE SUPPLYING THE ANTILOCK SYSTEM AND DISCOVERED THE RIGHT REAR BRAKE WAS LOCKING UP SOONER THAN THE OTHERS. A SECOND CONTACT WITH THE DEALER INFORMED ME THE GM SYSTEM BACKS OF THE BRAKE LINE PRESSURE ON ALL BRAKES IF ONE WHEEL LOCKS UP. WITHOUT THE SYSTEM, EVEN WITH ONE WHEEL LOCKED UP, I THINK THE VEHICLE COULD HAVE SLOWED DOWN ENOUGH TO AVOID THE ACCIDENT. *AK