I WAS DRIVING OUT OF MY COMMUNITY TO AN APPOINTMENT I HAD WITH HYUNDAI DEALERSHIP TO CHECK BRAKES WHEN I MISSED RIGHT TURN.I STOPPED THE CAR PUT IT IN REVERSE USING CAMERA AS MY VISUAL.I NOTICED I WAS GETTING CLOSER TO CURB AND SIDEWALK SO I TURNED MY BODY TO MY RIGHT AND SAW THERE WAS A BIG TREE CLOSE TO SIDEWALK.I WAS TURNING BACK TO NORMAL DRIVING POSITION AND APPLYING THE BRAKES AT SAME TIME WHEN THE PEDAL WENT COMPLETELY TO THE FLOOR,THE STEERING MOVED TO THE RIGHT, NEVER STOPPING THE CAR. I HEARD A LOUD CRASHING NOISE AND MY BODY BEING SEVERELY JERKED BACK AND FORTH. I NOTICED THE AUTO COLLAPSING HEAD REST POPPED UP.I REMOVED MY SEAT BELT PUT THE CAR INTO PARK AND WENT TO SEE THE DAMAGE.SURE ENOUGH I HAD HIT THE TREE WHICH SHOWED NO SIGN OF DAMAGE BUT THE REAR BUMPER ON THE PASSENGER SIDE WAS SEVERELY DAMAGED,QUARTER PANEL WAS BLOWN OUT AND TOP OF THE TRUNK MIDDLE RIGHT WAS ACTUALLY RIPPED AND TORN.I WAS DETERMINED TO SEE WHY THE BRAKES FAILED SO I DROVE THE CAR WITHOUT ANY BRAKES AND MIRACULOUSLY MADE IT TO DEALERSHIP.ONE OF SERVICE GIRLS SAW MY DAMAGED CAR AND ASKED WHAT HAPPENED.I TOLD HER BRAKES FAILED. SHE TOLD ME NOT TO WORRY BECAUSE THEY WILL FIX CAR WITHOUT ANY CHARGE BECAUSE THATS HOW HYUNDAI TREATS THEIR CUSTOMERS. I ASKED IF THERE WERE RECALLS ON THE CAR, SHE SAID NO.THEY TOLD ME MY CAR WILL BE READY NEXT DAY.I WENT NEXT MORNING AND ASKED FOR THE REPORT ON CAR WHICH SAID BRAKE FLUID WAS CHANGED TWICE AND BRAKES FAILED TWICE.THE SERVICE TECH NOTICED AUTO ANTI