Air Bag Light On problems of the 2004 Ford F-250

The air bag light in my 2004 Ford 250 sd truck came on and I checked the fuses but they were not the problem. A few weeks later I was talking with a salesman at a Ford dealership about the air bag light he said this could cost up to $1,000 to repair. I inquired if there had been a recall for this problem and was informed it has not been. I think this is a safety issue that should be addressed by Ford. This isn't like an engine or transmission issue, this is safety! this bag could deploy at anytime and cause bodily harm or even death! please help with this issue. Thank you.