Air Bag Not Deploy problems of the 2000 Subaru Outback

During a front-end, low-speed collision, I hit my head on the steering wheel. My seatbelt did not properly restrain me in my seat, and the airbags did not deploy. Prior to the accident, I brought a problem to my dealers service center, in which the driver's seat belt would not properly retract. The problem was not corrected, and I believe contributed to the seatbelt failure during my accident.