2001 Chevrolet Monte Carlo air bags problems

My wife and daughter were involved in an accident where she was forced off the road, crossed the median, and struck a tractor trailer unit, on is-70. The air bags did not deploy. GM was contacted and the "black box" was downloaded. The downloaded information is false. GM will no longer speak with me concerning this incident. Your assistance would be appreciated. I am a missouri state trooper (GM is unaware of this) and am familiar with how airbags work. Thank you, [xxx].

I have had this same problem since shortly after purchase of my vehicle. (purchased new september 2001...has 47,000 miles in 2006.) the leather on the driver's side air bag keeps pulling away from the seat and exposing the seat. The dealer has looked at it numerous times and tucked the leather back in, but that lasts less than an hour before it is exposed again. I am concerned the air bag may deploy without warning - or - not deploy properly during an accident.