2010 Subaru Outback air bags problems

Traveling on icy road approx. 20MPH or less in 2010 outback 3.6 ltd. Very accustomed to driving severe mountain winter conditions & 8th subaru among family members. Seatbelt, shoulder restraint in place on driver. Oncoming driver in mid-size to large truck lost control at high speed, crossed center line and impacted subaru head-on, offset to left side of outback & 2010 outback was totaled. Subaru airbags did not deploy. Impact into front left side, crumpled hood up to windshield, which shattered.

The passenger airbag is disabled when there is a passenger. On a trip to ga with my wife, who weighs 135 lbs, sitting in the passenger seat, the air bag light will indicate 'not enabled'. At times it will display enabled, then disabled all while driving. Shifting in the seat doesn't do anything. In summary sometimes its on, sometimes not. We took this to the dealer and their response is they were unable to duplicate with a mechanic (probably a heavier person) in the passenger seat.