The regulation calls out 19 vehicle functions which must have physical controls inside the vehicle, with additional requirements about size and usability of the buttons.
Those functions include:
Turn signals
Hazard lights
Horn
PRND gear shifter
Driver assist function, if present
Windshield wipers
Windshield defroster
Power windows
Emergency call system
Power off switch for EVs


Or you just have a normal car with physical buttons and knobs so you don’t need to stop when you want to adjust things?? Like why are you solving a problem that touchscreens invented?