Demystifying the cruise control buttons in Atto 3

I think you misunderstood what the button on the left side of the toggle does. This button turns on and off the intelligence cruise control not the cruise control itself. The button on the right side of the toggle is what turns cruise control off and on.

See that's what I would expect! But as I mentioned, their behaviour for their respective function seems completely random at times. 70% of the time, they will do exactly as you describe, and I'm familiar with that. The rest of the time, the left button may turn off one or both, or neither button will turn off anything.

I'm also confused on this (I have a Seal). But what I find most reliable is this: Turning on cruise control: simple Turning off lane assits: press the cruise control button Turning off cruise control: press the cruise control button again. But with one BIG caveat when turning off lane assist: Make sure the lane assist is still on and engaged (usually they turn off due to low visibility or when we just finished changing lanes). If they are off, and you press the cruise control button, the cruise control shuts off entirely. BYD please, just enable us to turn them independently from each other. Why would I need cruise control when I only want lane assist?

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Appreciate the link! It does suggest, as you would naturally expect, that the ACC button should turn the system on and off, and although it doesn't explicitly mention turning the ICC system off with its button, you'd expect similar behaviour. I feel the randomness of the reaponse - at least in mine - suggests more of a quirk in the system where some condition or inability to process prevents either one from being manually disabled. I'd hoped it wasn't just me, basically!

Very valid point! But yes that's the time i think this behaviour presents most frequently. I may have both cruise control and lane keeping assist on, and want to only turn off lane keep assist. Sometimes it will, sometimes it won't. Other times I can't turn off cruise control at all say when I'm taking an exit on a highway. Bizarre

something doesn't sound quite right! I use ICC for about 90% of my driving and things definitely work as you're saying they should. left hand wheel with lines either side should only enable/disable ICC. This one I use a fair bit, mainly to enable/disable it when I get into urban areas. ACC, the button on the right I pretty much only ever use to enable adaptive cruise. If I'm controlling the accelerator with my foot ACC is most likely turned on but not enabled. Pushing it should turn it off and all the associated icons should vanish from the top right of the dash. It would be interesting to monitor the icons on the dash and if the right ones are changing state with the expected inputs. Not showing - system off Grey - system on but not active Green - active If it's really doing the kind of weird shit you're saying it is I'd suspect there is some gunk that's got into the controls and mucking with the electrics at which point it'll be a job for the service centre

I’ve never used the button to deactivate. Simple tap of the break with little to no pressure deactivates. And I mean by so little that the car really doesn’t even break.

Thanks for your input, good to have the corroboration! It does behave the correct way *most* of the time but yeah not always. I was hoping someone would say something like "oh yes it's because you have to pat the top of your head while you're doing it" or something equally inane and straightforward. I can't say I've noticed any other unusual behaviour. The indicating lights show as you'd expect and I never have any trouble turning the systems on so suspected software or order of operations rather than hardware. I'll have to pay close attention next time to exactly what's going on.. whether I'm indicating or or anything else possibly related. 🤷‍♂️.

Fair enough, to each their own! It's only a major annoyance when I have ICC activated and want to turn off only the lane keep assist but keep cruise control on, otherwise yeah can just use the brake. Just computers behaving badly

out of interest what software version is running on the car? I'm pretty much at the latest 2507 off the top of my head. Might be something there if you haven't been for a service recently? I know we get OTA's but I can sure as hell tell you that the ICC was improved after they updated some of the module software at the last service

I do not trust the cruise control on my Atto 3. I've had it for three years. It seems to be getting worse. It breaks hard, late and freaks out if there's an overhead bridge or something. Totally untrustworthy. I just drove my sister-in-law's dolphin and the active cruise was quite good.

Oh totally I do think it can be improved, but I think for all the other positives this ends in the gotta live with this little annoyance bucket

Think I'll have to agree with you on that one. I'd hoped I was just missing a trick but sounds like it could be a little gremlin which is not likely to be worth chasing down! Cheers 😁

That's pretty interesting. I'm not without my gripes for it as well, for one it really aggressively tries to maintain distance from cars, like if someone pulls in ahead of you on the highway it'll brake way harder than necessary, especially when they're actually going faster than you! Hyundai and Toyota seem to have the control loop nailed on that one and I'm surprised it isn't better dialled in tbh. Mine will also occasionally steer itself too close to a line and then start complaining about it 😄. Definitely one to be supervised!

Hmm I'll have to get back to you on that one. I did go through an update a couple months ago and read the patch notes about the improvements which I was glad to see. Probably on the same one! It still does some funny things but in general I am actually quite happy with the way it handles itself. The PID loop could definitely use some work on maintaining distance, I've thought before it should really have a modifier based on relative speeds of the vehicle ahead to prevent it braking hard when someone pulls in front but is actually going faster than you, but I digress. When I take a step back, it's a great car for the price!

I'm having to drive a VW T-Cross this week because my Atto 3 is in at the bodyworks. If you think ICC is daft... oh my lord VW IQ.Drive is next level hopeless

Bahaha. I too often get to enjoy it as though the first time because my other car is a 2010 manual petrol car with plain old cruise control, the type that will happily crash you into the car ahead of you aren't paying attention or lapse into the dream state the radar cruise allows 😄. Enjoy the fresh feeling when it comes back!

Here's what I've worked out and has not failed me yet, each case starting with both systems disabled: - Pressing the ICC button turns on both lane centering and ACC. If both ICC and ACC are active, pressing the ICC button will disable both. - Pressing the ACC button turns ACC on. Pressing it again turns it off. - When ICC is active but you want to disable it while keeping ACC active, you need to hit the ACC button. There is a small caveat though; if ICC is temporarily disabled because it can't figure out the lane or you just finished changing lanes, pressing ACC it will disable both systems. Admittedly, annoying and bad UX. You need to check the ICC status symbol in order to figure out what behavior to expect before pressing the ACC button. - When ACC is active and you want to enable ICC, press the ICC button. - When both systems are at rest (disabled but have been used in this drive), pushing the rocker upwards will enable ICC or ACC whatever was used to the same speed you had it set. Hope I'm not forgetting anything, it is by no means intuitive or a good user experience, but it is what it is. After getting used to it, it's not that bad.

That all makes sense and lines up with what I experience, thanks for the roundup! I was thinking that pressing the ACC button while both are enabled tends to disable them both, but it's entirely possible that is because ICC wasn't active at those times. I'll try it out next time! Certainly would expect logically that you'd press the one you want to turn off, but here we are! It is mostly intuitive usually, just that mine seems to behave strangely sometimes with not being able to turn them off with the CC buttons. It is a minor issue, but I thought there had to be some reason behind it. Now I'm not so sure ha!

I think your car is fine, it's just that whoever designed this functionality didn't do a very good job, took me a while to get used to the quirks. Mine also drifts to the edge of the lane sometimes while on ICC, something it would never do prior to the current version. And if I try to gently correct it, it just drifts to the other side, very annoying. I used to trust ICC a lot in the past, not so much lately.

Pressing ACC to turn off ICC is not intuitive at all. Thanks though!!