THE PRE-COLLISION SYSTEM FAILED TO ASSIST IN AVOIDING AN ACCIDENT WHEN THE CAR IN FRONT OF ME STOPPED SUDDENLY IN TRAFFIC ON A HIGHWAY. SINCE THE REPAIR, THE BRAKE WARNING INDICATOR LIGHT ON THE SPEEDOMETER SIDE OF THE INSTRUMENT CLUSTER INTERMITTENTLY ILLUMINATES AND THE BRAKE PEDAL PULSES AS IF THE ABS SYSTEM IS ENGAGING. ONCE IT STOPPED ME SUDDENLY WHILE DRIVING DOWN A BUSY CITY STREET. WENT FROM 35 TO 0 VERY SUDDENLY. I HAVE TAKEN THIS TO 2 DEALERS AND THEY SAY THERE IS NOTHING WRONG. THE SYSTEM DOES NOT INDICATE AN ERROR EVEN THOUGH THE LIGHT IS ON AND THEY TESTED WHILE IT WAS ON. I CAN RECREATE THE ISSUE BY ACCELERATING QUICKLY WHILE TURNING LEFT. SOMETIMES IT HAPPENS WHEN GOING STRAIGHT, BUT THE ONLY WAY TO GUARANTEE IT WILL HAPPEN IS TO TURN AND ACCELERATE QUICKLY. NEITHER OF THE 2 DEALERS I HAVE TAKEN IT TO HAVE FOUND THE ISSUE AND TOYOTA CUSTOMER CARE STOPPED CALLING ME BACK.