TL* THE CONTACT OWNS A 2016 JEEP GRAND CHEROKEE. THE CONTACT STATED THAT THE VEHICLE WAS STOPPED AND PLACED IN PARK. ONCE THE CONTACT EXITED THE VEHICLE, IT BEGAN ROLLING BACKWARDS. WHILE ATTEMPTING TO RETRIEVE A PACKAGE FROM THE REAR SEAT, THE CONTACT FELL DUE TO THE VEHICLE ROLLING BACKWARDS. THE CONTACT SUSTAINED A FRACTURED WRIST AND CONTUSIONS TO THE FACE. MEDICAL ATTENTION WAS RECEIVED, WHICH INCLUDED WRIST SURGERY. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE RECURRED ONCE. THE APPROXIMATE FAILURE MILEAGE WAS 37,000.