I bought my 2023 Sportage HEV at a dealer 150 miles away from home. By the time I got it home, my first priority was to disable the lane departure warnings. I found it an annoyance on the Interstate, but an absolute nuisance on narrow and often curvy WV state highways where one is never far from one of the painted lines.
If my car has capability for Lane Assist, it was not turned on.
I managed to turn lane departure warning off, permanently. No warnings, no “assists” or other unwanted features for steering. I wish I could remember how I accessed it through the various menus on the touchscreen so I could be more help. But I can assure you that it is possible to turn it all off permanently. I did it through the touchscreen menus, not a button.
Wayne