Tesla Model Y: Using the Touchscreen

 Limitations

Autosteer and its associated functions are particularly unlikely to operate as intended when: Autosteer is unable to accurately determine lane markings. For example, lane markings are excessively worn, have visible previous markings, have been adjusted due to road construction, are changing

 Restricted Speed

On a controlled-access highway, the cruising speed reflects the speed limit, taking into consideration any off set you've specified using Speed Assist. However, if you choose to use Autosteer on residential roads, a road without a center divider, or a road where access is not limited, Autosteer