MY WIFE WAS TRAVELING SOUTH ON A 2 LANE ROADWAY,HEARD A LOUD BANG, LOST CONTROL OF STEERING AND CROSSED THE CENTERLINE , THEN SWERVED BACK ACROSS ROAD TO HER SIDE AND STRUCK A GUARDRAIL. LATER WE FOUND THAT THE RIGHT REAR BALL JOINT BROKE OFF CAUSING THE WHEEL TO COLLAPSE AND WHEN THE CAR SKIDDED OUT OF CONTROL THE LEFT REAR TIRE BLEW OFF THE RIM. THIS CAR HAD REGULAR MAINT. AND SERVICE. IF SHE WOULD'VE HIT SOMEONE HEAD ON AND CAUSED A FATALITY NO ONE WOULD KNOW THE REAL CAUSE AND EVERYONE WOULD ASSUME SHE GOT DISTRACTED AND CAUSED THE ACCIDENT WHICH MAKES ME WONDER HOW MANY TIMES THIS OCCURRED AND NOBODY IS THE WISER. THE NTSB NEEDS TO MAKE BUICK ISSUE A SAFETY RECALL NOW! *TR