My airbag warning light just came on the other day and won't go out. Why? on 2006 Kia Spectra

Also would like to know how much cost would be to repair.

3 answers
passengers ocs mat
To explain answer #2....KIA has issued a recall for the faulty airbag sensor in their OCS (Occupant Classification System) which could allow the passenger airbag to deploy in an accident , even if a child is sitting in the front seat. (which they shouldn't)..............
scan test for codes could be lots of things that would turn the light on