[Hondasucks]

The seat air bags sense if someone is in the seat and don't fire if nobody is in the seat, same with the passenger side airbags. Not sure about the side curtain air bags, I think those blow no matter what but not positive. The computer fires the bags that it thinks that it needs to fire, the air bag light is on due to the curtain bag being blown.

You'll need to have a Subaru dealer check the SRS system to make sure the sensors and such are still functioning. I remember when I set the air bags off on mom n dad's 93 Sable (Sables do not jump ditches, nor do they take 10 MPH corners at 40) the dealer had to replace both bags (duh) as well as the computer and the air bag sensors. I'd get it checked ASAP, I don't know if it'll still fire the front bags or if since the side bag is blown, and the light is on, if the system shuts down, but the dealer will be able to tell you.