The contact owns a 2025 Toyota Land Cruiser. The contact stated that while in reverse(R) and depressing the brake pedal, the vehicle made an abnormal loud sound. The vehicle was taken to the dealer, who was unable to diagnose the vehicle. The manufacturer was informed of the failure and a case was filed. The manufacturer referred the contact to the NHTSA Hotline to file a safety complaint. The failure mileage was 21,000.