The contact owns a 2024 BMW X5. The contact received notification of NHTSA Campaign Number: 24V104000 (Electronic Stability Control (ESC), Service Brakes, Hydraulic). The contact stated that while driving at approximately 45 MPH, the brake pedal was depressed; however, the vehicle failed to slow down as intended. The brake warning light flashed and then disappeared. The vehicle was taken to a dealer twice to be diagnosed, and the contact was informed that the parts listed in the recall needed to be replaced; however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 6,000. VIN tool confirms parts not available.