2001 Hyundai Elantra air bags problems

My son in law died in a two car crash [ frontal], his airbags did not deploy. Both vehicles were going about 50 MPH. Three people in other vehicle survived, their airbags did deploy. The seat belt was worn. The consumer crossed over a lane and possibly fell asleep, and hit a van. *scc the driver of the vehicle may have fallen asleep at the wheel and drove into oncoming traffic. The posted speed was 55 MPH. The drive hit the front end of a full size chevrolet van at an estimated speed of 50 MPH.

Tl* the contact owns a 2001 hyundai elantra. While the contact was attempting to back out of a parking spot the passenger side airbag had suddenly deployed without warning and without anyone sitting in the seat.three days prior the driver side airbag had deployed without warning after attempting to accelerate from a stop. The vehicle was taken to the dealership where the contact was informed that the cause of the failure could not be found. The current and failure mileages were 96000.