I was involved in a single car accident in which the vehicle went off of the road hit an embankment and the vehicle bounced. The front drivers side hip and shoulder seat belt did not engage, and sustained a compression fracture to the vertebrae. The passenger front seat belt at the hip did engage with the sudden stop but the shoulder harness did not engage. The back seat passenger seat belt did fully engage and resulted in seat belt markings to the right shoulder and clavicle area of the passenger requiring evaluation at the Emergency Department. The rear seat passenger did have the Live 360 app and the mobile app did respond to the sudden stop and alerted the passenger if 911 was needed.