CLEAR DRIVING CONDITIONS. NO WATER, OIL OR MUD ON PAVEMENT. DRIVER WAS ATTENTIVE. I HAD STOPPED IN TURN BAY, CROSSED OVER THREE TRAFFIC LANES TO SIDE STREET. THEN IMMEDIATELY MADE A LEFT TURN INTO PARKING LOT AND A RIGHT TURN INTO PARKING SPACE. AS I ENTERED PARKING SPACE THE BRAKE PEDDLE WENT ALL THE WAY TO THE FLOOR WITHOUT ANY DECELERATION, JUMPED A SMALL CURB AND HIT A TREE. I NOTICED AN ODOR OF BURNING OIL OR RUBBER AT IMPACT. THE HONDA DEALER CHECKED THE BRAKES AND COULD NOT FIND ANY DEFECT AND THEN DENIED ANY LIABILITY FOR ACCIDENT. SINCE THEY COULD NOT FIND A PROBLEM, AND I KNOW THE BRAKE PEDDLE WENT DOWN TO THE FLOOR. I AM AFRAID TO CONTINUE TO DRIVE THE VEHICLE AS IT COULD HAPPEN AGAIN AND BE A MORE SERIOUS ACCIDENT. OTHERS HAVE REPORTED THE SAME PROBLEM TO NHTSA. THE DEALER REFUSED TO BUY THE VAN BACK AT ANY PRICE EVEN AFTER THE DAMAGE WAS RESTORED TO ITS ORIGINAL CONDITION. DT