FROM STOPPED POSITION I PULLED VEHICLE FORWARD APROX. 50 FT AND TRIED TO STOP. I HEARD ABS PUMP COME ON AND BRAKE PEDAL WAS HARD AS A ROCK WITH NO PULSATION. I THEN HIT A TREE CAUSING DAMAGED TO THE BUMPER, HEADLIGHT AND HOOD. MY SPEED WAS APPROX 4 MPH. THERE WAS NO INDICATOR LIGHT ON BEFORE, DURING OR AFTER THE ACCIDENT. I HAD TO REMOVE MAIN ABS FUSE TO MAKE VEHICLE SAFE TO DRIVE. THEN I HAD THE BRAKE AND ABS INDICATOR LIGHTS ON. I CONTACTED GM. THEY DID AN INSPECTION. DURING THE INSPECTION THE INSPECTOR BROKE MY PARKING BRAKE. THEY WOULD NOT TELL ME THE RESULTS, ONLY THAT THEY COULD NOT VERIFY THAT THE ABS CAUSED THE ACCIDENT BECAUSE I HAD REMOVED THE FUSE. BUT DID TELL ME THAT AFTER THE FUSE WAS REINSTALLED THAT THE ABS DID COME ON AT SLOW SPEED STOPS AND ALL INDICATORS LIGHTS WERE OFF. I WAS DENIED ANY OFFER TO REPAIR THE VEHICLE. I ALSO DO NOT KNOW IF MY VEHICLE HAD THE 2005 RECALL DONE TO IT. *TR