I WAS PULLING INTO PARKING SPACE AND THERE WAS NO BRAKES ALSO HAPPENED WHEN I WAS PULLING OUT OF PARKING LOT OF STORE .I TOOK TO GM DEALER AND WAS TOLD THAT BOTH HUB BEARINGS WERE LOOSE AND THAT IS WHAT CAUSED ME TO LOSE ALL MY BRAKES. I HIT A CONCRETE HANDICAP SIGN WAS LUCKY NOT ANOTHER CAR IN FRONT OF ME. WHY WOULD GM MAKE A TRUCK THAT WOULD LOSE ITS BRAKES IF A BEARING WAS LOOSE I AM AFRAID TO DRIVE TRUCK THAT THE SAME THING MIGHT HAPPEN AGAIN AND MAYBE THE NEXT TIME I WON'T BE SO LUCKY. THERE WAS NO SIGN OF ANYTHING WRONG WITH THE EXCEPTION OF 4 DAYS EARLIER MY ABS LIGHT FLICKERED ON THEN OFF 1 TIME. REMAINED OFF AFTER THAT. *TR