The contact owns a 2023 Honda Civic Type-R. The contact stated that while driving at approximately 50 MPH, the vehicle lost motive and unintendedly decelerated. The contact stated that the vehicle regained normal functions shortly after the failure. The vehicle was taken to the dealer who was unable to determine the cause of the failure. The contact stated that the failure recurred approximately 2 months later while driving 70 MPH up an entrance ramp. The vehicle was returned to the dealer who was unable to determine the cause of the failure. The contact who is a certified mechanic, informed the dealer of NHTSA Campaign Number: 25V031000 (Fuel System, Gasoline, Electrical System); however, the dealer was unable to repair the vehicle because the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 16,500.