MrBadger
Badger out
I managed to get that solid single line in the middle of the lane and got prompted to change lanes on the A4 today
On the A31 Hogs Back heading towards A331 junction from Guildford, the thin blue line does a little dance.
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Auto lane change on FSD
- Thread starter tabpharmer
- Start date
On the A31 Hogs Back heading towards A331 junction from Guildford, the thin blue line does a little dance.
MrBadger
Badger out
NoA and the thin blue line pre dates 2019.21 - each update does seem to add to the NoA network though.
I think that FSD traffic control required 2019.21 though.
Last edited:
rlasry1
Member
Hi all
I have a similar query. I purchased the EAP upgrade last weekend, so have access to Auto Lane Change (ALC) and Navigate on Autopilot (NOA).
My question is this: does ALC work only on roads where NOA works (e.g. a motorway but not the North/South circular)?
I ask this because the owner's manual clearly stipulates that: "Auto Lane Change is available whenever Autosteer is active" (and a bunch of other limitations, like hands on the wheel, minimum speed is 30mph, etc.). Which to me means ALC should work with or without NOA.
However, I cannot get ALC to work on road where NOA is not available, e.g. the North Circular, even with Autosteer on.
Putting the indicator on just does that - doesn't trigger a lane change.
But ALC does work as part of NOA on the motorway (e.g. M1) .
Is that a bug i should ask Tesla to resolve or is that normal?
rlasry1
Member
Thanks all for the replies - this is what i thought.
(Yes I tried ALC with AP on but with NOA off, at more than 30mph on the North Circular with 3+ lanes. No luck).
I suspect the EAP upgrade didn't completely work / i have an "old"/semi-working version of ALC and NoA.
For instance my Autopilot/NoA settings only display the "old" menu and does not display the newer 'no-confirmation' and 'notification' settings.
Weird, given I am on 2020.36.11 and on HW3, right?
Suspecting this might affects the ALC behaviour and cause the above issue.
Hoping to get it fixed at next software update or via a service request.
Getting to Tesla on the phone has proven impossible this weekend / yesterday.
MrBadger
Badger out
No confirmation is US only. The only unconfirmed lane change we get is heading onto the offramp. Everything else we need to confirm or instigate with the indicator.
Don't know what notification is, but maybe a thing not in our region?
tbh, In UK, I know of no real downsides of having NoA turn on at start of each journey.
If stalk triggered lane change doesn't work, it may be that it does not recognise you holding the steering sufficiently. It will not perform a lane change if it does not recognise your hold and will not necessarily nag in time.
rlasry1
Member
Is auto lane change geo-fenced? Ie it works only on certain roads (and they seem to be the same ones as where NoA is available), based on your GPS position?
MrBadger
Badger out
Yes. But other than when NoA is explicitly available, we do not know the rules of the other circumstances that it can be enabled other than it can change from time to time so is probably software and map determined - I have seen circumstances change between navigation version.
Dear Mate,
I have exact same situation like your car, did you fixed the issue or any luck???
Billbrown1982
TM3 LR 2021 | Red | FSD
Every time my car wants to do a lane change, I indicate but then have to give the steering wheel a slight nudge in that direction. I had assumed it was part of the process, but perhaps its because of the way i'm holding the wheel?
Its been pretty good at changing lanes, on the A13 and A127 - although it does seem to have a liking for sitting in the middle lane....
Its been pretty good at changing lanes, on the A13 and A127 - although it does seem to have a liking for sitting in the middle lane....
It is geo-fenced, but ALC does work on many dual carriageways where NoA is not available. It’s a bit random, but I find ALC works on most dual carriageways, while NoA doesn’t.
Mark-R
Member
In my experience, the secret to getting lane changes to work without having them abort part way through is to apply gentle but contunuous torque on the steering wheel. This takes a bit of practice - you need to hold the wheel on one side and then let the weight of your arm gently pull it down. This mimics what the Autopilot Buddy and other AP 'cheat' devices do, but you keep hold of the wheel.
It’s easier and less frustrating to just manually change lanes. It’s just a shame that you have to reset AP after every manual lane change.
I find ALC painfully slow to switch lanes. It takes forever and anyone coming up behind will think you are trying to wind them up.
Exactly what I would like too! Auto lane change is just too slow and unpredictable to be of any real value. It works okay with very light traffic when you have all day to switch lanes and can tolerate the odd aborted attempt! But it soon gets out of its depth in heavier traffic when you need to make quick decisive moves. NoA is a bit of a joke too. Mad Max is more like Maisy Mouse.
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