Air Bag Not Deploy problems of the 1999 GMC Jimmy

I replaced my front pads and rotors. Been fine for a week till yesterday I stopped at a light brakes felt slightly spongey, not long after maybe ten minutes three cars ahead of me had stoped as I hit the brake my foot went straight to the floor and I smacked the vehicle in front of me doing appx. 35-40 mph. It was a four car pileup I took heavy front end damage more or less totaled the vehicle but the airbags had failed to deploy causing me to hit my head on the steering wheel and suffering a concusion. The seatbelt didnt lock as it should have either therefore causing my whiplash to be severe.

I was involved in car crash my 1999 Jimmy was total the front end was completely smash in to the glove department and my air bags did not come deploy and the man where it was towed said should check it out as hard as it was hit they should have deployed.

During a front end crash both of the air bags failed to deploy. State trooper on the scene advised me to file a complaint. This has also been reported to GMC.

Rental vehicle was involved in a frontal collision with a tree at 45 mph. Upon impact, air bags failed to deploy. Dealer/ manufacturer were not notified at this time. Feel free to provide any further details.

Consumer involved in collision in which vehicle was hit on front passenger's side. Upon impact, air bags did not deploy. Please give any further detials.

While driving 25 to 30 mph frontal collision in which driver and passenger air bags didnot deploy. Cause unknown.