You have to start by pulling codes from the BCM. If you guys are close to poughkeepsie, swing by and I'll pull the code and get you the correct diagnosis and remedy. PM me and I'll do my best to meet up with you guys. I really have nothing to do for the next two months until I get clearance from my doctor to go back to work.
My 2011 light came on they troubleshot to passenger side seat airbag. Sorry it was under warranty they replaced the airbag. They had to pull the seat to change it.