PITSTOP: HVAC VENTILATION LOGIC OPERATION - Starting with 14MY Soul (PS) (with the exception of PSEV) and complete new models such as K900 (KH), Sedona (YP), Sorento (UMa), Optima (JFa), Sportage (QL), and 17MY Forte (YD, YDm), etc., equipped with a sunroof, a ventilation logic has been applied in order to prevent exhaust gases flowing into the vehicle due to the pressure difference (inside vs outside) that is generated when driving with the sunroof open. This logic allows the system to automatically switch from RECIRCULATION to FRESH mode when the sunroof is open.
