I would like to share some info on 2010 GM air bags

[348tripower]

I bought a 2010 Silverado 1500. It is a wrecked truck with a salvage title. Right front body damage, fender, core support, bumper, grille , headlight and a frame pull. All this led to both air curtain bags being blown and the driver bag. I have everything repaired but it kept giving me a service air bag system message.
  I had to really search hard but I found that the air bag connectors have a lock on them. If the lock is broken, missing or the connector is cracked it can lead to the service air bag message. Seems the bag has a ground bar in its connector that connects when the lock is not there.
  I knew it was the left bag by my scan tool, and I remembered not putting the lock in because it was broken.
Lo and behold a new connector with a lock and we are code free.  
  So sharing is caring.

  Hopefully somebody with the same issue will come across this thread.

[kb426]

Interesting. I'll try to remember that.

[idrivejunk]

Duly noted. Things are going to redundant "CPA" connector position assurance, I done broke one on a headlight but had not heard of the bag voodoo. Good share