Front Air Bag problems of the 2002 Dodge Stratus

I have 2 large cracks in my dash, my car is well taken care of and does not sit in direct sunlight, one crack appeared over a year ago, I was driving and all of a sudden a loud cracking noise, now again the same thing only the newest crack is much larger and still getting bigger I also hear other cracking noise while driving so I imagine it is just matter of time before I have more cracks. I am concerned that this may cause safety issues. Dealer says nothing is covered to fix this problem.

I was just pulling out of my driveway going less than 5 mph when I heard what sounded like a gunshot. I put my foot on the brake and looked over my right shoulder and saw nothing. I paused approx. 5 seconds before deciding to pull forward and to the side of the road to investigate. I took my foot off the brake and as the car began to roll forward there was a tremendous explosion and the passenger airbag deployed, shattering my windshield. I have asthma and have been having significant breathing problems since the occurrence.