Sorry, Forscan is a diagnostic tool that allows you to view/set how the electrical systems are set up on your particular vehicle, and aslo allows you to customise your own set up. I personally don't know sufficient about the tool but those on here more knowledgeable may be able to see if there is an option to set the auto screen. Re the post above I think it would probably use an existing temperature, but first see if the option can be set.
This distortion must be pretty drastic, but does the dealer agree that the distortion appears when the heated screen is on?
This distortion must be pretty drastic, but does the dealer agree that the distortion appears when the heated screen is on?