The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The contact stated that while driving on several occasions at various speeds, the brake pedal was depressed, and the pedal fluttered, and the vehicle failed to stop as intended. The vehicle was parked at the residence. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unknown.