The contact owns a 2024 Subaru Crosstrek. The contact stated that while driving at an undisclosed speed and attempting to slow down during a turn, the brakes failed to function properly and caused a delay while braking. The vehicle was taken to a dealer, but the technicians were unable to duplicate the failure or determine the cause of the failure. The contact stated that on another occasion while slowing down, the brakes failed to stop the vehicle, causing the contact to crash into the rear of another car. The vehicle was taken to a collision center to be repaired. The failure mileage was 21,353.