Side/window Air Bag problems of the 2001 Mitsubishi Galant

I was sitting in an intersection waiting to turn left. As I began to turn a pickup truck ran the light and hit me head on at approx 45 mph. None of my 4 airbags deployed -- driver front & side airbags nor the passenger front & side airbags. The front end was completely smashed up. My car was towed from the scene and subsequently ruled as a total loss by the insurance company. I don't understand how none of these airbags deployed in this accident!.

Srs light stayed on continuously while car was in motion. The dealer replaced the seat backs, since they claimed that the side air bags were the problem. The light has not come on since the repair. Also, the steering wheel air bag cover did not properly fit. This unit was also replaced. This repair also appears to be acceptable. As for the windshield, it is leaking water into the interior. The dealer already made two attempts to fix this problem. The first attempt included resealing the windshield, and the second attempt was an adjustment to the moonroof. They claimed that both of these fixes would work, but I'm still finding water leaking into the interior. The leak has remained at the same location, about 4-6 inches left of center.