2011 Toyota Avalon Brakes Problems

I HAVE HAD TO REPLACE MY FRONT BRAKE ROTORS 4 TIMES ON MY 2011 AVALON.. I CURRENTLY HAVE 173,800 MILES WITH 75-80% OF THIS MILEAGE ON THE OPEN HIGHWAY. SEVERAL MECHANICS HAVE INDICATED THAT THIS PREMATURE WEAR ON THE FRONT ROTORS IS HIGHLY UNUSUAL. MY ATTEMPTS TO CONTACT TOYOTA ABOUT THIS PREMATURE ROTOR WEAR ISSUE HAVE EITHER NO RESPONSE OR A FORM LETTER STATING THEY HAVE NO ISSUES WITH THEIR BRAKES. MY VEHICLE IS SERVICED REGULARLY AND TO ME THIS IS A VERY SERIOUS AND POTENTIALLY DANGEROUS ISSUE. PERHAPS YOU CAN GET THE ATTENTION OF TOYOTA TO LOOK INTO THIS MATTER.

SUDDEN ACCELERATION WHEN SHIFTED INTO REVERSE GEAR AND THE BRAKES WOULD NOT EVEN SLOW THE CAR. IT WAS ONLY STOPPED BY HITTING A LOW RETAINING WAS, KNOCKING IT DOWN, AND THEN FALLING OVER THE EDGE OF THE DRIVEWAY AND BEING SUSPENDED LIKE A "SEE-SAW" OVER THE EDGE OF THE DRIVEWAY WITH THE POSSIBILITY OF A 10+ FOOT DROP OFF INTO A WOODED RAVINE.

TL* THE CONTACT OWNS A 2011 TOYOTA AVALON. THE CONTACT STATED THAT THERE WAS GRINDING NOISE COMING FROM THE REAR OF THE VEHICLE. THE CONTACT STATED THAT THE BRAKE PEDAL SEEMED TO GO DOWN CLOSER TO THE FLOOR WHEN BRAKING. THE VEHICLE WAS TAKEN TO THREE DIFFERENT DEALERS AND WAS TOLD NOTHING WAS WRONG WITH THE BRAKES. EACH DEALER MENTIONED THAT THERE WAS POSIBILITY THAT THE BRAKES PRODUCE NOISE WHENEVER THEY WERE ENGAGED. THE CONTACT STATED THAT THE VEHICLE HAD A LONGER STOPPING DISTANCE THEN BEFORE. THE FAILURE MILEAGE WAS UNKNOWN AND THE CURRENT MILEAGE WAS 27,000.

FOOT FIRMLY ON BRAKE, SHIFTING TO REVERSE. ENGINE ROARED TO LIFE AND VEHICLE THRUST BACKWARD. FOLLOWED BY FOUR OTHER EPISODES OF SUDDEN ACCELERATION WHILE FOOT ON BRAKE. THE LAST OF THESE RESULTED IN LIGHT REAR-END COLLISION. NO VISIBLE DAMAGE TO STRUCK PICKUP. FRONT GRILL OF AVALON VISIBLY CRUSHED. THESE FIVE INCIDENTS OCCURRED OVER A PERIOD OF ABOUT NINE DAYS. I HAVE REFUSED TO DRIVE IT SINCE.