I WAS DRIVING MY 2004 H2 HUMMER. I WAS ON A DEEP SLOPE HILL. I WAS BACKING UP AND I HIT A 500 SERIES MERCEDEZ ON HIS LEFT BUMPER FROM LEFT REAR BUMPER. IMMEDIATELY AFTER I HIT, I STARTED TO SHIFT THE GEAR SO THAT I COULD STOP THE CAR TO GET OUT TO SEE WHAT HAPPENED. AT THIS POINT, THE HUMMER STARTED TO TRAVEL AT VERY FAST SPEED DOWN THE STREET IN THE SAME PATTERN THAT I HAD ORIGINALLY DRIVEN UP. I TRIED TO APPLY THE BRAKES, BRAKES DID NOT WORK. I TRIED TO STEER, STEERING WAS IN A LOCK POSITION. I HIT A PEDESTRIAN HARD AND MY CAR LANDED IN MY NEIGHBOR'S HOUSE. WHEN I HIT THE HOUSE, THE 2 FRONT WHEELS BECAME DETACHED FROM THE CAR. THE PEDESTRIAN THAT I HIT HAS INCURRED MANY SERIOUS DAMAGES. I HAD 1 ENGINEERING COMPANY LOOK AT THE CAR BACK IN 2004 AFTER THE ACCIDENT AND THEY SAID THEY COULD NOT FIND ANYTHING WRONG. WHEN I LOOK NOW, I'VE HEARD OF MANY CASES WHERE SIMILAR INCIDENTS HAVE OCCURRED DUE TO BRAKES. I AM CURRENTLY IN COURT FOR ANOTHER 1 WEEK AS THIS PEDESTRIAN IS NOW SUING ME. I PLEAD TO ALL H2 HUMMER OWNERS TO CONTRIBUTE ANY INFORMATION THAT THEY MAY HAVE ABOUT OTHER HUMMER OWNERS OR THEIR OWN EXPERIENCE. YOUR CONTRIBUTION TO THIS MATTER IS HIGHLY APPRECIATED. *TR