THE INTERMEDIATE SHAFT ON THIS VEHICLE (STEERING) LOCKED UP MAKING THE CAR UNSTEERABLE THUS CAUSING AN ACCIDENT. IT IS UNPREDICTABLE WHEN THE INTERMEDIATE SHAFT LOCKS UP. PRIOR TO THE ACCIDENT THE VEHICLE EXPERIENCED SHAKING AT HIGHWAY SPEEDS AND PREMATURE TIRE WARE. PART WAS REPLACED 2 YEARS AGO THROUGH WARRANTY BUT FAILED AGAIN. ACCORDING TO THE DEALERSHIP THIS IS A COMMON PROBLEM WITH MOST GM VEHICLES HOWEVER NO RECALL HAS BEEN ISSUED. THIS PART WILL BE REPLACED AGAIN AND OLD PART WILL BE AVAILABLE UPON REQUEST. *TR