INTERMITTENTLY WHEN HITTING THE BRAKE PEDAL, BRAKES FAILED AND VEHICLE WENT OUT OF CONTROL, CAUSING A REAR END CRASH. ON JULY 14TH AFTER BACKING OUT OF DRIVEWAY, DRIVER PUT THE VEHICLE IN DRIVE AND THE VEHICLE WENT INTO REVERSE AND HIT A TREE. UPON IMPACT, THE DRIVER'S AND PASSENGER'S SEATBACKS COLLAPSED. THE VEHICLE WAS TOWED TO THE DEALERSHIP. THE VEHICLE HAS NOT BEEN REPAIRED. *AK