Unless you have had it scanned for fault codes and can give me the fault code number, it is about impossible to give a price for repair. The airbag warning light can come on due to a faulty driver, passenger, side or seat airbag, faulty coil spring in the steering wheel, faulty control module, faulty seat belt pretensioner or tensioner, faulty passenger side seat occupancy sensor or short/open in the wiring circuit.
As you can see, there are a whole lot of causes and without knowing which, the best I can do is give you a wide range of repair cost - ranging from $200 for wiring issue up to $1500 for an airbag or control module - prices are for parts and labor
Please remember to rate service using the rating page so that I may receive credit. Thanks
If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT today.
Please reply and let me know why, so I can help more/better.
All follow up responses are FREE, after completing the required rating