TL* THE CONTACT OWNS A 2015 JEEP GRAND CHEROKEE. AFTER SWITCHING TO THE PARK POSITION AND EXITING WITH THE ENGINE RUNNING, THE VEHICLE SUDDENLY DROVE FORWARD AND STRUCK A SECOND VEHICLE. THE CONTACT SUSTAINED AN INJURED RIGHT ARM. MEDICAL ATTENTION WAS NOT REQUIRED. THE VEHICLE WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. ALSO, WHILE DRIVING AT VARIOUS SPEEDS, THE COLLISION AVOIDANCE SYSTEM RANDOMLY ACTIVATED AND CAUSED THE BRAKING SYSTEM TO ABRUPTLY STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 1,000.