TL* THE CONTACT OWNS A 2009 TOYOTA PRIUS. WHILE ATTEMPTING TO APPROACH AN INTERSECTION AT 20 MPH THE VEHICLE WOULD NOT DECELERATE. CONSEQUENTLY THE DRIVER REAR-ENDED ANOTHER VEHICLE, WHICH CAUSED THAT VEHICLE TO REAR-END ANOTHER VEHICLE. A POLICE REPORT WAS FILED. THERE WERE NO PERSONAL INJURIES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE FRONT BUMPER WAS REPLACED. THE FAILURE MILEAGE WAS 2,485. THE CURRENT MILEAGE WAS 5,023. THE VIN WAS UNAVAILABLE.