1) LEAVING THE PARKING LOT OF MY EMPLOYER, TURNING RIGHT ONTO MAJOR HIGHWAY 2) ONE OCCURRENCE. THE LOWER FRONT BALL JOINT SEPARATED FROM THE CONTROL ARM, HENCE DROPPING THE FRONT RIGHT CORNER ONTO OF THE WHEEL/TIRE. THE NUT "BACKED OFF" AND SLOWLY SPUN ITSELF OFF. THE NUT HAD NO VISIBLE "MARRING" OF THE METAL OR SHOWED SIGNS OF DISTRESS. THIS IS ALSO TRUEFOR THE LOWER BALL JOINT. 3) VEHICLE WAS TOWED TO REPAIR SHOP, WHERE THE PARTS WERE REPLACED AND A NEW NUT WAS APPLIED. ALTHOUGH THERE IS A SAFETY RECALL ISSUED BY GM FOR THE 2004 CADILLAC CTS REGARDING THIS PROBLEMS, GM HAS FAILED TO CURE THE PROBLEM AS " IT DOES NOT FALL WITHIN THE DESCRIBED LOT OF VEHICLES PER YOUR VIN # ". GIVEN THE MAJOR SAFETY RAMIFICATIONS SURROUNDING THE IMPROPER FUNCTION OF THIS PART IT IS IRRATIONAL TO BELIEVE THAT THE NUT WOULD JUST "BACK ITSELF OFF". *TR