My pre facelifted Tucson Ultimate Phev is unable to pre-heat or cool the car via the Bluelink App as it is greyed out. The only way I can pre-heat the car is by using the remote start via the key fob which means you have to be near the car. It was switched on to use in the USA but not the UK. I don’t know if the facelifted version has been updated. Have you tried the Bluelink App to see if your Tucson Phev can pre-heat or cool the car @Kezo