The contact owns a 2024 Alfa Romeo Tonale. The contact stated while driving 30 MPH and attempting to slow down, the brake pedal was depressed; however, the brake pedal was abnormally stiff. In addition, the vehicle hesitated to come to a complete stop. The contact stated that there was a shuddering sound coming from the brakes. There was no warning light illuminated. The contact stated that a dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The approximate failure mileage was 23,000.