ON THE APPROACH TO A TOLL PLAZA, @ 30MPH EXPERIENCED TOTAL LOSS OF STEERING. RESULTING IN A CRACH. THE LEFT FRONT TIRE TURNED IN CAUSING LEFT REAR SIDE OF VEHICLE TO TURN INTO A CONCRETE BARRIER WALL. NO OTHER VEHICLES WERE INVOLVED DUE TO THE TIME OF DAY (4:30AM) IT WAS FOUND THAT THE "KNUCKLE" JOINT WHICH CONTROLS THE STEERING LINKAGE BROKE IN HALF RESULTING IN AN ACCIDENT WITH DAMAGE OF OVER $5,000.00. THERE HAS BEEN A FRONT END NOISE WITH THIS VEHICLE SINCE I PURCHASED IT. DEALERSHIP UNABLE TO LOCATE IT...OR DETERMINE THE SOURCE ON SEVERAL OCCASIONS. DOCUMENTED ON THEIR COMPUTER AT THE DEALESHIP.