The contact owns a 2024 Tesla Cybertruck. The contact stated that while driving at 70 MPH with the ‘Full Self-Driving’ (FSD) active, the vehicle ahead of the contact’s vehicle abruptly slowed down. The contact began to notice that the vehicle failed to detect the vehicle slowing down and the contact attempted to manually stop the vehicle. The contact crashed into the vehicle which resulted in a three-vehicle collision. The air bags failed to deploy upon impact; as a result, the contact hit her chest on the steering wheel. The contact was taken to the hospital via an ambulance and was treated for neck, back and chest pain. The two other vehicle occupants sustained both neck and back injuries but did not seek medical treatment. The whereabouts of the other drivers were unknown. A police report was filed(report unavailable). The vehicle was initially towed to an independent tow yard. The manufacturer was notified of the failure and later towed the vehicle to an authorized Tesla service center where it remained in their possession. The current condition of the vehicle remains unknown. The failure mileage was 5,149.