If you have a MX or newer 2017 build MS with premium seats, yes, the lumbar support D-pad pops up a dialog on the MCU asking if you want to adjust the lumbar support or headrest.Note: If your seat's headrest doesn't look like it is obviously capable of movement (e.g. it's one continuous piece of leather), it means you don't have hardware support for moving the headrest. Don't spend too much time scratching your head about how an OTA update activated nanoparticle liquid plastic/leather…