My question has nothing to do with the AirBag.
After you reconnected the battery, did your car drive OK? Did the Transmission shift like it should? Did you still have all your pre-set information in the radio? How about all the Bluetooth info?
I.E. Anything different after you reconnected the battery?
From what I remember everything was good except the clock. I had to reset that. I believe all my presets stayed the same... not sure about the bluetooth though.