The contact owns a 2008 Subaru Forester. The contact stated while driving at approximately 5 MPH, the transmission control valve detached. No warning light was illuminated. The contact did research and was made aware of NHTSA Campaign Number: 11V464000 (Suspension) however, the VIN was not included. The vehicle was towed to an independent mechanic to get a diagnosis however, the diagnosis was pending. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 144,000.