As far back as my Model S test drive in July 2017 I did not understand why I had to turn off the blinker after the car completes the auto lane change. Could it not simply turn off the blinker itself? The guy from Tesla on the test drive did not know or did not offer a good answer. Anyway, now that the Model 3 is available I am seeing youtube videos where it will turn off the blinker automatically after the auto lane change and am back asking way my Model S can not also do it. So, is this something that is impossible with a Model S / X? Like maybe there is no electronic signal to the turn signal? I just do not understand why the Model 3 does it but my Model S does not. I know I could hold the turn signal part way down until the lane change is mostly complete and then let go but I mean just put on the turn signal and then let go and then when the lane change is complete the car will turn it off.