Where do you add power steering fluid - 2006 Chevrolet Cobalt

Hello and welcome. this vehicle doesnt have a hydralic power steering pump. it uses a electric motor on the base of the steering clolumn. some of these had some problem. if you are getting a service power steering message on the dash, then there is a electricsl problem with the system. just a further note, there is a recall on some of these vehicles for steering problems. you may want to check with your dealer on this