Does 12.5.5 Have Always-On Lane Keeping Assist, Or Just When Auto-Pilot / FSD Is Engaged?

[jookyone]

About as dumb of a post as the political ads on TV. Congrats.

Quantify. You stated that a car that allows itself to leave a lane is unsafe which describes 99% of vehicles on the road which is why we have drivers to drive them.

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[jookyone]

This is the hill you want to stand on? Against a safety feature? I'd encourage everyone to just avoid responding to nonsense like this.

There's no hill. You are complaining about how cars operate and then complaining they are unsafe and all you have to do is hold the steering wheel which you are legally required to do.

If you are driving a vehicle, and holding the steering wheel, and can't stay in your lane by yourself pull over immediately and get out of the car. You are not qualified to drive.

 

[mongo]

Yes exactly, that's what I've been saying. And I know it's hard to communicate because most people right now are focused on the FSD release. But the regular everyday Lane Keeping would be a huge plus for every driver out there.

Lane keeping is only as good as the FSD stack that is running it. Tesla is playing it safe by not having the truck autosteer (as a lane departure option) until they get fleet data that it is determining lanes properly.

 

[MadMaxTX]

This is a confusing topic because the options related to AP, FSD, Autosteering, etc. have changed over time. Disclaimer: my experience goes back to early 2018 M3 (RWD, LR, FSD). As far as I can recall, there was never an "always on lane assist" in that car but the lane departure warning was always on. It's the same in the more recent Teslas we own (2024 M3, CT FS AWD). You used to be able to specify in the settings how Autopilot was engaged vs FSD. You could set it for one right scroll click to engage Autopilot and two clicks to engage FSD. I don't recall that you could get directly to Traffic Aware Cruise control. But if you disengaged by taking over steering, you were then still in cruise control (no Lane assist). Recently, I think as part of Elon's frustration with the world being slow to adopt FSD, they changed it so the one click/two click option was no longer available. Maybe that's an uninformed opinion, but it feels to me like strong push to get you to use FSD. Now, if FSD is enabled, one click starts FSD. You can disable FSD (need to stop) and then one click is Traffic Aware cruise control only. It's a little clunky, but you can still get the equivalent of Autopilot (I should say near-equivalent) by enabling FSD and then click it on without a Navigation destination set. What happens then seems to depend on your Auto Navigation choices. The manual says something like it tries to find the most likely path for you -- and I I have seen it start navigating me home without me specifying it. You can get to Traffic Aware Cruise control by engaging FSD and then take over steering, I believe.

I'm curious about how lane assist works all the time. I can understand the warning, but what happens if it starts to autosteer due to a perceived lane departure and you don't agree. Surely, it must allow the driver to take over and so disengage? Or what? Seems like a safety issue which, BTW, I have with FSD in this regard. It is definitely not safe to be continuously arguing with FSD over it's erroneous decisions. Before people flame me and tell me I am not suitable as a Tesla pilot, I have been beta tester since it was available on M3 and it has gotten a lot better, but still must be watched like a hawk. Fortunately, none of these quirks has caused an accident, but some could have easily done so. And I know what to watch for, so sometimes, I just don't use it if I know this will be an issue on a road. It's a usable work in progress, which is fine with me.

 

[Bill906]

You need to define what you mean by "Active Lane keep assist".
My 2018 Jeep Grand Cherokee has Lane Keep Assist. There's a light on my dashboard. White means it isn't working because the car cannot see/follow any lines. Green means it sees the lines, and we are between them. Orange means it sees the lines and we are drifting out of them.
Now, I can turn on a feature that will nudge the steering wheel left or right when I'm drifting out of my lane. This isn't intended as lane centering or correction, but merely a way for the car to get my attention. It also give the option of how hard the nudge is. And if you turn it to high, it kinda sorta works as autosteer, albeit very poor autosteer.
Is the "nudge" I describe what you mean by "active Lane Keep Assist" aiding you? If not, please describe what you mean.

 

[alockbox]

You need to define what you mean by "Active Lane keep assist".
My 2018 Jeep Grand Cherokee has Lane Keep Assist. There's a light on my dashboard. White means it isn't working because the car cannot see/follow any lines. Green means it sees the lines, and we are between them. Orange means it sees the lines and we are drifting out of them.
Now, I can turn on a feature that will nudge the steering wheel left or right when I'm drifting out of my lane. This isn't intended as lane centering or correction, but merely a way for the car to get my attention. It also give the option of how hard the nudge is. And if you turn it to high, it kinda sorta works as autosteer, albeit very poor autosteer.
Is the "nudge" I describe what you mean by "active Lane Keep Assist" aiding you? If not, please describe what you mean.

I believe I did define it. I’m not sure how many messages you read.

 

[Bill906]

I believe I did define it. I’m not sure how many messages you read.

Sorry, I just reread and still didn't see where you defined it. But I did see where nocyber said " If the question is do other models have always on lane keep wherein the car pings you back into your lane..."

I guess "pings you back into your lane" could be the same as what I described as a nudge.
Does it take over and center back in the lane? Does it just steer until you are back between the lines and let go again? IF you are going around a curve, does it keep you in the lane around the curve, (MyJeep only gives enough of a nudge to correct a line crossing on straight road. The nudge isn't held long enough to take me around a curve).

From watching the YouTube channel "Wham Baam Telsacam" many people report emergency braking and steering and even acceleration sometimes before an accident, or near hit accident. I don't recall any CT videos where the driver reported emergency steering. I'll have to pay attention for that next time. I would think that emergency steering and lane keep assist that put you back in your lane would be the same or similar function.

 

[bg002h]

Right, no active lane assist option at this point, just audible alert when it thinks you're drifting.

thank you! I was a little surprised at how lame this feature was and now I don’t feel bad disabling it. My wife’s 2017 Honda minivan is an active assist over 45 MPH and customizable visual or visual+audible warning below 45MPH.

90% of the time I drift towards the side of a lane it’s in anticipation of an exit or turn and I don’t want CT interrupting the music to tell me stuff loudly and annoyingly that I already know.

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