The contact owns a 2017 Kia Optima Hybrid. The contact stated that while driving on the highway at 70 MPH, there was an abnormal amount of smoke coming from underneath the vehicle. The contact stated that DTC: P1326 was displayed on the instrument panel, with the message, For Your Safety ‘ Please Pull Over displayed. The contact pulled over and opened the hood and there was a green liquid sizzling on the heat on top of the engine. The vehicle was towed to a local dealer where it was inspected; however, the vehicle was not diagnosed. The contact was informed that the upper radiator hose had melted, and that the battery was an M part. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 115,000.