Why is it that the windows crack open when opening a door and close when the door is closed?
because they are frameless and you dont want to smash it off the trim?
So the glass will clear the metal trim.
Frameless doors so the windows must come down a bit so you can open the door and when you close the door the windows roll up to seal the door :-)
The windows close under a small lip when fully shut. They need to drop down when opening the doors, otherwise it would pull the glass every time you open the door and eventually crack. Upon delivery they should have shown you that.
Weird. I could have sworn this was in the manual, but I don't see mention of it on pages 12-14 about doors and windows.
Charley wanted to satyRFTM and quote the page :P
I always try to say RTFM politely by quoting a paragraph. :)
@CharleyBC - and that's a good thing. :-)
As many have stated, the main function is to clear the seal. Another advantage is that it vents air allowing the door to open and close easier without putting undue stress on the glass.
Question answered, let's get back to watching idiots key Teslas.