We have a 2017 Hyundai Santa Fe Sport. About a week after we bought it we put a pillow on the passenger seat and the air bag alert light came on. The air bag will not work if a pillow is on the seat. We told the service manager about it, and his comment was, yea, I guess you can't use a pillow. The next time we took it in we were told it had something to do with the satelites....So the satelites have to align before the air bag works? Not happy with this car at all...too many problems with no fixes. I sure hope we don't have an accident with all the things wrong with it. We want our 2002 Hyundai back!!! it was great!