Heated seats is probably broken wires
I hope that helps somewhat, but what YOU do now I couldn't begin to guess!If it were me I'd get out a DA sander and some micromesh (damn fine wet'n'dry type stuff) and try to polish up the sensor area of the screen, lots of water etc and see if I can make a difference.
No No NoYou don't want it scratched to buggery, you need a mirror finish or you'll be right knackered!Buff it or break it, but if it's a toughened screen (Triplex) don't try anything or you'll just end up shattering it.
What I want to know is whether it was one of those green scourers or a ‘Brillo’ pad and did it work?
there was another round of recalls for the heated seat pads on the grand, send me your chassis number and i will check on dealer connect for ya mate it may be due again,
seat not going up or down, probably seized up mine were