2008 Toyota 4Runner SERVICE BRAKES, HYDRAULIC

I HAVE A 2008 TOYOTA 4-RUNNER, SR5, 4WD. IT HAS APPROXIMATELY 31,000 MILES ON THE ODOMETER. I PURCHASED THE VEHICLE NEW. I HAVE EXPERIENCED SEVERAL INCIDENTS WHERE THE VEHICLE AUTOMATICALLY APPLIES WHAT FEELS LIKE THE FRONT LEFT BRAKE. THIS OCCURS WHILE THE VEHICLE IS TRAVELING AT 30-50 MPH ON DOWNHILL GRADES. I AM APPLYING MILD BRAKING WHEN THE INCIDENT OCCURS TO CONTROL THE DOWNHILL SPEED. THE AUTOMATIC BRAKING IS INTERMITTENT AND EACH TIME A LOUD BEEP IS HEARD FROM THE DASH AREA. THE EFFECT TENDS TO PULL THE VEHICLE STRONGLY TO THE LEFT. IT CREATES A VERY HAZARDOUS CONDITION THAT IS DIFFICULT TO REACT TO AND COMPENSATE FOR. IT IS NOT POSSIBLE TO PREDICT OR ANTICIPATE THAT THE INCIDENT WILL OCCUR. I TOOK THE VEHICLE TO THE DEALER IN LATE JANUARY 2009 FOR INSPECTION. THE DEALER WAS UNABLE TO REPLICATE AN INCIDENT OR LOCATE ANYTHING ABNORMAL. I REMAIN VERY CONCERNED ABOUT DRIVING THE VEHICLE IN DOWNHILL CONDITIONS. THIS IS A SIGNIFICANT HAZARD. *TR

APPROX 1 WEEK PRIOR TO 6/15 I STARTED HEARING AN INTERMITTENT SQUEAK WHEN DRIVING MY CAR. I TOOK MY 4 RUNNER IN TO HAVE TOYOTA LOOK AT IT, 2 DAYS LATER THEY DETERMINED IT "MUST BE" THE BRAKE PUMP. MY CAR IS 4,000 MILES PAST WARRANTY. NO ONE CAN TELL ME IF IT IS SAFE TO KEEP DRIVING UNTIL I GET IT FIXED AND WHAT MIGHT HAPPEN IF IT GOES OUT. *TR

2008 TOYOTA RAV4 BEGAN RACING BADLY, TOOK THE CAR IN FOR SERVICE, THE TOYOTA DEALER CANNOT FIND ANYTHING WRONG WITH THE CAR. WE WERE DRIVING INTO OUR GARAGE, WAITED FOR THE DOOR TO OPEN WHEN THE CAR STARTED RACING VERY BADLY. I AM AFRAID TO USE THE CAR, WHAT CAN WE DO? *TR

TL*THE CONTACT OWNS A 2008 TOYOTA 4RUNNER. THE CONTACT STATED THAT WHILE DRIVING LESS THAN 30 MPH WITH THE BRAKES APPLIED THEY FAILED TO ENGAGE AND MADE A LOUD POPPING NOISE. THE CONTACT THEN RELEASED AND APPLIED THE BRAKES AGAIN WITH EXTREME PRESSURE UNTIL THE VEHICLE FINALLY STOPPED. THE DEALER WAS INFORMED ABOUT THE FAILURE AND THE CONTACT IMMEDIATELY TOOK THE VEHICLE IN FOR DIAGNOSTIC TESTING. THE DEALER STATED THAT THERE WAS NOTHING WRONG WITH THE BRAKES. THE VEHICLE WAS NOT REPAIRED . THE FAILURE MILEAGE WAS 32500 AND THE CURRENT MILEAGE WAS 33971.