Rivian enabled this feature a while back via OTA, and it was bad. It only ever triggered while entering or exiting a freeway, and it’s really quite distressing when you are trying to merge onto a freeway and the car tries to nudge you off the road. Or when you are getting off the freeway and the car tries to nudge you into an area that isn’t actually a lane.

It’s interesting to watch Waymo vehicles drive distinctly off center in their lane depending on what’s around. I’m not convinced that Waymo has dialed in the right tradeoff between its own distance from other cars vs driving politely and predictably, but they are certainly very aware of what’s around them.

(Yes, I switched it to a mode where it would beep but not try to steer once it was safe to do so.)

I had the same thing while passing an unexpected cyclist. That was an Audi A6, I vividly remember even though some 5 years have passed - I was one of the scariest things that happened to me on the road.

Maybe different manufacturers have very different implementations?

My partner’s Hyundai has a lane keep assist and it will always use the commanded input over what the computer thinks.

The computer only takes over if you have very loose grip on the wheel and you drift.

It's hard to believe a car exists that ignores steering input. I suspect you just didn't try hard enough. Perhaps because it was a last-minute decision, you weren't very confident it was safe to change lanes and chose to give up some decision making to the car?

> the hypothetical accident there would have been a comparatively minor fender bender.

Youtube will tell you that bumping into someone sideways at highway speed can leave either car spinning and flipping off the road.