Front Air Bag Sensor Control problems of the 2002 Buick Lesabre

My wife arlene l holmquist was driving home from her volunteer job 75 miles at 5:30 pm in the afternoon and fell asleep approximatley 12 miles from home and went across the middle line and onto the opposite side of the road and received serious physical harm in the one car accident. Fractured nose facial cuts and bruises as well as bruises on her upper and lower body. None of the air bags deployed/ car was hit in the center of the front of the car also major damage on the left front of the car. Two new sensors were installed when the repairs were done. Car was in the garage 43 days.