I WAS DRIVING OUR COBALT 2005 AT A SPEED OF ABOUT 25-30 MPH WHEN THE STEERING FAILED WITHOUT ANY WARNING ON A SUBURBAN STREET. THE STEERING WHEEL WAS COMPLETELY LOOSE AND DID NOT CONTROL THE CAR. THE VEHICLE SLID INTO A CURB, JUMPED IT AND ENDED UP ON SOMEONE'S LAWN. THERE WAS SEVERE DAMAGE TO CAR'S UNDERSIDE. WHEELS AND TIRES (OVER $ 5,700). I WAS TOLD THAT THE "STEERING KNUCKLE" BROKE (WHY???). CAR WAS DECLARED "REPAIRABLE" BUT EVERYTHING IS IN LIMBO BECAUSE OF CONCERNS ABOUT THE SAFETY OF THE VEHICLE. I REQUESTED AN INVESTIGATION BY CHEVROLET IN DETROIT . NO REPAIRS WILL BE DONE UNTIL CHEVROLET HAS FINISHED THE INVESTIGATION, WHICH IS TO BEGIN 2-6 DAYS AFTER THE REQUEST. *TR