The new software update is a big step back in identifying speed limit signs in Colorado. The car constantly thinks the limit is 45 in a 65 zone. It makes AP nearly useless. Very frustrating. This used to work. Even Google maps has the limit right.
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My car definitely uses the speed limit signs in some cases. For the OP’s issue, they wouldn’t be seeing different speed limits than before on the same route if it were using only map data. In my case, I’ve had instances where the car can’t see a speed limit change because of an obstruction and it doesn’t respond to the change (once in a while).From my experience, the car really isn't doing much of anything with speed limit signs anymore, it's using the map data.
It's hard to tell the difference on which speed it is using, often because the geocoded data and the speed limits signs are within a few feet.My car definitely uses the speed limit signs in some cases. For the OP’s issue, they wouldn’t be seeing different speed limits than before on the same route if it were using only map data. In my case, I’ve had instances where the car can’t see a speed limit change because of an obstruction and it doesn’t respond to the change (once in a while).
There is no minimum speed limit signs.Someone else reported that the car was using the minimum speed limit from signs that post it instead of the actual speed limit, so maybe that’s what you’re seeing.
You may want to check you facts.There is no minimum speed limit signs.
FSD v12 is still using the old stack (i.e. FSD v11) on highways, so that would explain most of your issues.I received the FSD update to 12.3 last Friday so I decided to try it out on about 250 miles of Texas highway on Sunday. This version has definitely taken FSD back a few steps. It has lost the capability to reliably read speed limit signs. Even when it does get the speed right, it does not control the speed of the vehicle. It will neither speed it up nor slow it down to match the set speed. I found myself moving at 70 mph in a 45 mph zone and it was not slowing.
In a previous edition of version 11 there was problems with the windshield wipers not working correctly. That is still happening in this version.
One of the most dangerous errors in version 11 was what is referred to as lane drift. It kept trying to move into a left turn lane at 80 miles per hour. That is still happening on this version.
The car still cannot handle flashing yellow lights. In fact it went from 75 mph to 45 mph on a 4 lane road because of the flashing yellow. There were no other vehicles in the area.
I have not tried this new version in traffic as none of the older versions could handle that without a lot of interventions. I can't expect this to handle traffic if it can't handle open highway.
I received the FSD update to 12.3 last Friday so I decided to try it out on about 250 miles of Texas highway on Sunday. This version has definitely taken FSD back a few steps. It has lost the capability to reliably read speed limit signs. Even when it does get the speed right, it does not control the speed of the vehicle. It will neither speed it up nor slow it down to match the set speed. I found myself moving at 70 mph in a 45 mph zone and it was not slowing.
In a previous edition of version 11 there was problems with the windshield wipers not working correctly. That is still happening in this version.
One of the most dangerous errors in version 11 was what is referred to as lane drift. It kept trying to move into a left turn lane at 80 miles per hour. That is still happening on this version.
The car still cannot handle flashing yellow lights. In fact it went from 75 mph to 45 mph on a 4 lane road because of the flashing yellow. There were no other vehicles in the area.
I have not tried this new version in traffic as none of the older versions could handle that without a lot of interventions. I can't expect this to handle traffic if it can't handle open highway.
Are you sure about that?FSD v12 is still using the old stack (i.e. FSD v11) on highways, so that would explain most of your issues.
The release notes for FSD v12 only mentions the city-street stack has been updated.Are you sure about that?
Because I'm pretty sure that it doesn't. Very specifically it has at least adopted the new speed mechanism.
On open highway, FSD 12.x still often uses V11. Perhaps you should let us know which stack was running. The lane drift at 80 mph was almost certainly using the V11 stack, not V12, so you should expect that same errors. Same for flashing yellow lights at high speeds.I received the FSD update to 12.3 last Friday so I decided to try it out on about 250 miles of Texas highway on Sunday. This version has definitely taken FSD back a few steps. It has lost the capability to reliably read speed limit signs. Even when it does get the speed right, it does not control the speed of the vehicle. It will neither speed it up nor slow it down to match the set speed. I found myself moving at 70 mph in a 45 mph zone and it was not slowing.
In a previous edition of version 11 there was problems with the windshield wipers not working correctly. That is still happening in this version.
One of the most dangerous errors in version 11 was what is referred to as lane drift. It kept trying to move into a left turn lane at 80 miles per hour. That is still happening on this version.
The car still cannot handle flashing yellow lights. In fact it went from 75 mph to 45 mph on a 4 lane road because of the flashing yellow. There were no other vehicles in the area.
I have not tried this new version in traffic as none of the older versions could handle that without a lot of interventions. I can't expect this to handle traffic if it can't handle open highway.
The release notes for FSD v12 only mentions the city-street stack has been updated.
The problem not adjusting to higher speeds is also observed in cars without FSD in 2024.8.4, so it's not and FSD issue at all, but an issue with AP in the update as a whole. I was replying to the comment about FSD v12 behaving like FSD v11 on the highway.
From my experience, the car really isn't doing much of anything with speed limit signs anymore, it's using the map data.
Mostly on Interstates, but there are minimum signs around here.There is no minimum speed limit signs.
So you haven't driven V12 then.I've been driving for 50+ years. I rarely use FSD because I LIKE to drive, ( read: "control freak" ) missing the worst pot holes, using the whole lane to maximize space between others on the road from bikes to big rigs, etc. For my taste, FSD is too litteral with lane centering, but then makes random, ill advised (illeagal !) lane changes. I usually look further ahead than the cameras on the car, as well as knowing my usual routes regarding speed limits, best lane choice, traffic density, local driver habits, road quirks, etc.
Actually I have, over the last two weeks.So you haven't driven V12 then.