My car (not a toyota) does it too and I've never had it actually brake but the very audible + visual warning signs definitely makes you act tiny fraction sooner

My car (not a toyota) does it too and I've never had it actually brake but the very audible + visual warning signs definitely makes you act tiny fraction sooner (at least that is how it feels). I'm pretty sure it would have stopped otherwise on its own but a bit less pleasant. edit: it also triggers when you go down a steep parking lot onto a flat surface a bit too fast which is interesting but at least valid (with respect to suspension compression and hitting the ground).