The contact owned a 2024 Hyundai Santa Fe Hybrid. The contact stated that while stopped in highway traffic, the vehicle was rear-ended as part of a multi-vehicle collision. The contact's vehicle was identified as the fourth vehicle in the crash sequence. The entire rear bumper area sustained significant damage. The first vehicle that originated the crash was distracted by his phone, which caused him to crash into the rear of the second vehicle, causing the second vehicle to crash into the rear of the third, resulting in the contact being rear-ended. No property damage. The air bags did not deploy. The vehicle was rendered inoperable, towed to a repair facility, and subsequently declared a total loss by the insurance adjuster. The driver sustained multiple injuries, including a ruptured right breast implant, two lower back herniations, and a neck herniation. A minor child occupant seated on the front passenger's side also sustained a neck herniation. The driver and minor child occupant received medical treatment following the incident. The contact also had her service dog in the rear, and due to the severity of the impact, there was difficulty removing the service dog safely from the vehicle. The contact expressed concern that the seatbelt system did not provide adequate restraint during the collision and related the issue to NHTSA Campaign number 26V218000 (Seat Belts). The dealer and manufacturer had not been notified of the failure. The approximate failu