Well I wouldn't be surprised if the new one from zzp does the same thing. The latest gm update has nothing to do with it. It's the way the TC modules, Pcm and bcm communicate, the Pcm and TC module don't recognize each other. At least that's how my 04 Impala works with the airbag module. If I put the spare Pcm I have that's got the same file on as my stock one the airbag light stays on. When I put the original back in the light shuts off.