it was -5 degrees here today and my srs light decided to turn on , but when the car warmed up it went out.... but now it comes on and goes off when it feels like it, it will be off for 10 min then come on for 3 seconds then back off then back on... any ideas?

Try disconnecting the battery and letting the car sit dead for ten minutes or so. This will ensure the SRS has completely de-energized. Then connect the battery back up and cross your fingers. If the light keeps coming on, you might need to have the dealership check it out. I mean, it might just not work when it should, but what if it works when it shouldn't?