MyMidNiteMoment

So I'm fixing up a cobalt that was in an accident a few months back and the service airbag light came on. I am looking at the parts the mechanic said I would need and he said I need this part to get rid of my light (20927233). However I looked under my center console and there appears to be a sdm there with a different part number.
* also the seat lets had been replaced. And the sensor on the bumper

1) where is the air bag module part 20927233?
2) can this be reset with a reset tool?
3) what is the sdm control module part 15868050?


Anything helps also I drive a 2009 ss TC coupe