The contact owns a 2021 Ford F-350 towing a boat. The contact stated while driving 60 mph, applied the brakes however crashed head-on with a 2015 Toyota Scion. The contact stated the rear seats failed to lockdown. The contact had the tools under the seat and was released into the vehicle during the crash. The air bags deployed. The passenger sustained broken ribs, right ankle sprain or fractured, and the seatbelt bruised the chest. The driver struck the steering wheel and sustained chest pains, lower, mid, and upper back issues, and neck injuries. Medical attention was provided for both occupants. The driver of the Toyota succumbed to his/her injuries. A police report was filed. There was no reported fire. The vehicle was towed to an independent lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to NHTSA. The failure mile was approximately 6,600.