The contact owns a 2023 Ford F-150. The contact stated that while her son was at a red light, the vehicle jolted forward crashing into the vehicle in front without warning. The automatic braking system failed to engage. No injuries were sustained. A police report was filed. The vehicle was not towed and was able to restart. The dealer was contacted, and the vehicle was not diagnosed or repaired The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 46,000.