The contact owns a 2023 Honda HR-V. The contact stated while driving at various speeds, the vehicle suddenly shut off. The contact stated that the battery was replaced; however, the failure persisted. The vehicle was taken to the local dealer who diagnosed that the alternator and battery were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 36,000.