ok. i did not know that. really seems wrong, because my auto high beams don't work well either! lights go high beam and to low beam whenever a reflective street sign comes up. plus they auto dim when an oncoming car is too close and too late (at least for me, I would auto dim when a car is pretty far away).
so there really is not a setting now in the car that let's you turn off the auto feature of high beams? or move the left stalk forward manually? ok then, i need to get with the new and "better". I'm so 3 years ago! not always a win for Tesla.
In North America, starting from 4/27/2021, Model 3 and Y do not come with radar anymore. They rely on vision to detect speed and obstacles.
With the older radar-equipped Tesla cars, the vision can be impaired as in turning the headlights off and the radar still can detect speed and obstacles.
Thus, for Tesla radarless cars, if you want to use TACC, Autopilot, FSD or anything that requires speed and obstacle detections, you need to make sure your car is set with Auto High Beam even in the middle of broad daylight. You don't have to but you just can't use those features.
I have quit using Auto High Beam because it keeps alternation high/low, low/high inappropriately at times... and there were times it did that when the police cars were around as if it was asking for tickets! And fortunate for me that my Tesla cars still have radars so I have the option to quit using it.