THE BRAKES ARE SPONGY AND WOULD OFTEN TIME NEEDED TO BE DEPRESSED ALL THE WAY TO THE FLOOR TO WORK. VEHICLE HAD BRAKE CHANGED, MASTER CYLINDER REPLACED, AND ALL BRAKE FLUID AND MAINTENANCE COMPLETED, BUT THE PROBLEM WOULD OCCURS AGAIN AFTER 2 WEEKS. FURTHER ONLINE RESEARCH SHOWED THAT THOUSANDS OF OTHER CADILLAC SRX OWNERS ARE HAVING THE EXACT SAME PROBLEM, SOME LED TO SEVERE CRASHES. IT ALL APPEARED TO BE SIMILAR WITH MY PROBLEM WHEREAS THE BRAKES WOULD FAIL WITHOUT ANY WARNING, EVEN AFTER IT HAVE BEEN SERVICED. THE PROBLEM OCCUR AT RANDOM BUT ALSO WHEN GOING OVER SPEED BUMPS, AND MAKING TURNS.