The contact owns a 2020 Toyota Camry XLE. The contact stated while driving approximately 26 MPH, an 18-wheeler vehicle crashed into the rear of his vehicle twice. The air bags failed to deploy and the seat belts failed to engage. The message "Air Bag System Malfunction" was displayed. The contact sustained whiplash and hit his head against the steering wheel. The contact sought medical assistance the next day and was diagnosed with a herniated disk and torn muscles in the back. As a result, the contact had undergone left shoulder surgery. The contact's sister sustain whiplash, hit her head and face against the passenger's side door and sustained soreness and bruises on the right side of her face. The emergency units transported the contact's sister to the hospital where she received medical assistance. A police report was filed. The contact was able to drive the vehicle to his residence. The vehicle was then towed to the dealer. The vehicle was not diagnosed or repaired for air bags and seat belt failure. The contact stated that the event data recorder (EDR) indicated that the vehicle had only sustained one impact; however, the vehicle had sustained two impacts as it was rear-ended twice. The manufacturer was notified of the failure but did not provide any assistance or explanation for the erroneous report of the event data recorder (EDR). The failure mileage was approximately 17,000.