2014 GMC Sierra 1500 seat belts problems

The contact owned a 2014 GMC Sierra 1500. While the contact's wife was driving 45 MPH, the vehicle crashed into another vehicle. The contact stated that the air bags failed to deploy, and the seat belt failed to restraint the driver as intended. The vehicle was towed to a local tow yard. The vehicle was deemed a total loss by the Insurance Company. The driver was transported to a local medical center. The driver sustained bruised left and right knees, a bruised chest and ribs, and bruised lungs.

I took my truck in to the local GMC dealership for the recall fix and they ask if I wanted a diagnosis on the truck for a charge . I said yes cause I had a check engine light on and service air bag light on. Which they both came on a week after I bought it. So the service advisor told me that the belt tensioner is out on the drivers side and that the wiring under the drivers seat is messed up. And they told me some other things that were wrong with my truck that I have since found out were false.