The contact owns a 2014 Dodge Grand Caravan. The contact stated while driving 30 MPH, the sliding door became ajar. The door was difficult to close or latch securely. There were no warning lights illuminated. The local dealer was contacted and confirmed that the VIN was not under recall. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 200,000.