The contact owns a 2019 Subaru Forester. The contact stated that the vehicle was in the park position in a parking space but was unsure if the shifter was in park when without warning, the vehicle rolled down a hill and crashed into a chain link fence and burial wall. No warning lights illuminated. The air bags failed to deploy. No injuries were sustained. No medical attention was needed. A police report was not filed. The vehicle was towed to an independent mechanic but was not diagnosed. The vehicle was not repaired. The dealer was notified of the failure and the contact was advised to schedule an appointment to have it diagnosed. The manufacturer was not notified of the failure. The failure mileage was approximately 36,000.