1999 Dodge Durango seat belts problems

While stopped at a red light, my family and I were rearended by a camry traveling between 40 and 50 MPH. We were pushed into the car in front of us which was also pushed into another car in front of that. Our durango suffered $14,500.00 in repair costs. The seatbelts never deployed. I, the driver, was thrown into the steering wheel. My wife in the front passenger seat, was thrown into the windshield. My daughter was buckled in a car seat in the back seat. Although her shoes flew off her feet, she was restrained.

The PCM has already been replaced and it ran perfectly fine for 2 months and the same problem starting happening shutting off while im driving ive almost been in 3 car accidents while I was driving cause the vehicle shut itself off while I was driving on a 45 MPH road an twice on the highway driving 65MPH something needs to been down so once on city streets and 2 times on state route 75 highway