> My dad's Toyota has this. The issue is it seems to have a hard time actually centering itself in the lane, so it'll just sway from side to side like a drunk driver if the lane is somewhat narrow.

Newer cars (or other cars) do a better job of this. Mine doesn't do the ping pong - it really does keep it centered.

However, the point is that it should direct you back into the lane and you're supposed to take over. If it's ping ponging, it's because you as the driver are letting it.

> Then there's the collision detection thing. It's basically guaranteed to beep at me whenever I enter my parents' narrow street with cars parked on both sides.

Is this detecting at the corners and not the front? For example, my old 2016 car has collision detection, but it will only detect if something is in front of you head on. With my newer car, it's checking the corners. Still, I get the warning only when parking. And I can turn it off.

> But I'm not convinced these systems are that useful if people get used to ignoring them.

Agreed. I think some manufacturers do a better job than others, though.

The person you're replying to mentioned a Toyota, which I also drive a newer model of. It has two modes: lane assist (which works like you have described) and lane centering (which automatically is enabled when you switch on cruise control). The centering will continuously nudge you towards what it decides is the center of your lane.

It's awful and I've trained myself to automatically long press the button on the steering wheel to disable the entire system every time I get behind the wheel.