you might have some problems with your airbag let the pros check it out. since air bags are dangerous to work with. never know when its gonna pop
actually its a safety feature if the airbag light is on the air bags are disarmed so they don't malfunction. take it to the dealer. most of the time its a loose connection from vibration. have you done anything under the seats lately? theres a connection to the side airbags under there it sometimes comes loose. try that first.
my airbag light came on...5 miles into when i bought the car new because the seat belt pretensioner device wasn't wired up from the factory, kinda wierd, but could be that as well.