Fuck that. I get so many false positives when not changing lanes but there are faded lines in construction zones or when signaling and then merging into a turn lane that has a line too solid for the sensors that I turn that crap off. Yes, I did have it beep and jerk the wheel when my signal was on myltiple times.

No, using your turn signal correctly doesn’t mean lane departure always works correctly. It is a crutch for people who don’t pay attention while driving and is far from perfect.