I WAS PULLING UP TO PARK IN A PARKING LOT.I HAD TOTAL BRAKE FAILURE. THE ELECTRONIC SAFETY FEATURES FAILED- AND THERE WAS NO STOPPING THE ENVOY. I SLID UP THE CURB AND INTO THE BUILDING. THE MECHANIC THAT REPAIRED THE ENVOY HAS A WRITTEN REPORT OF THE SAFETY SYSTEMS GETTING STUCK HALF OPENED AND THE BRAKE LINES BRAKING AND THERE WASN'T ANY FLUID IN SYSTEM. *TR