Problems with FSD Maintaining Set Speed <65MPH?

[CT425]

I gotten a speeding ticket with FSD Standard Profile. Speeding 14 MPH over limit (50 mph)!
FSD does not always slow down when the posted speed limit changes to slower :-(

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[CyberSav]

I’ve been saying this since the FSD14 update. AI simply cannot set a reasonable speed and it will never be better at setting the speed the driver wants than the actual driver. There are just too many variables. In the real world, we’re quite a ways from safe and sensible E2E autonomy.

Some love the new speed profiles, many just accept them. I think they have ruined FSD. And although I hear praise in this forum, every single real Tesla owner I personally know hates not being able to set the speed, which seems to be almost always too slow or too fast or erratic for all real conditions except on a crowded highway. AI speed selection seriously degrades both safety and relaxation for me when using FSD.

And constantly flipping through profiles to try to imprecisely correct the speed requires MORE input, not less. How is that a step toward autonomous driving? BTW, Tesla is still very clear that FSD is a driver assist system, and does not constitute autonomous driving. So why pretend? The driver assist system was truly excellent when the driver could correct the speed- now, not so much (for my use anyway)

FSD14 may drive better but for me FSD13 was overall much better because I could adjust the speed on the fly and could set my personal parameters for max speed.

It’s been 4 months now since we lost the ability to manage speed - I’m not optimistic that the ‘we know better than the customers’ developers will bring it back. They’ve been handed a mission to create E2E autonomy it’s clearly not their mission to have satisfied owners. It’s a sad loss for me. I’d like to at least have the option returned, like maybe a ‘DriverMax’ profile on top of ‘MadMax’.

Agree completely. My Cybertruck was bought back by Tesla and lack of speed control is a major reason I won't get another Cybertruck (or Tesla for that matter). FSD 14 requires so much more input, it's a joke and is far from relaxing. Most of my roadtrips are long distance cross country driving on wide open highways which it has no idea how to handle properly, requiring so much input from me. It's awful.

 

[cyberpnw]

The original Autopilot in previous releases was actually far better on roadtrips - you could set the exact top speed and also set the follow distance to 7 car lengths. On a quiet highway at 70mph, you are much safer leaving plenty of room to react to highway events and avoid rocks.

Does anybody at Tesla drive roadtrips? It feels like the only testing they do for FSF is on crowded highways. At least with FSD 13 on my Model Y I can revert back to the original Autopilot which worked just fine. That's not an option on the Cybertruck.

 

[georgek43]

Never say never.

Tesla absolutely must get this right for RoboTaxi, because passengers will have no control whatsoever.

Agreed, they must get it right, but a robotaxi will likely be used only in a controlled, well mapped city environment, at least for the near future. We drive our vehicles in so many different settings, that having the option to precisely set speed is a totally sensible.

 

[bg002h]

New FSD is worse, doesn't allow "setting" speed limits, substitutes 5 levels of haul ass. The slowest level, dubbed "sloth" mode, limits the vehicle to the posted speed, where speed limits are posted. When no speed limit is posted and the road is narrow, twisted, hilly, has no shoulders and vision of pedestrians and wildlife ahead is obscured by thick and untrimmed vegetation, then FSD sloth mode propels the car at about twice the safe speed.

I was driving across 150 miles of desert last weekend and I had to disable FSD because it was driving faster than the low speed required to get to next supercharger. I was using navigation to plot out charger stops and I was surprised when it told me I had enough energy to continue my journey. I had to disable FSD and drive 60 mph for 40 miles before knowing with certainty I would have enough juice to get to next Charger. I arrived with 10%, which I want I requested on nav, but I would have presumably arrive with less or not at all if I stayed going 75 mph…I presume Tesla doesn’t have a way to help stranded motorists available everywhere at all times…I wish FSD had a drive speed needed to get to destination without running out of electricity setting.

 

[georgek43]

The speed management by AI is really problematic for me- I truly prefer the scroll wheel speed set. That said, I’ve programmed in a destination that did not have a supercharger along the route, and the nav screen alerted me something like “you must stay below 60mph to reach your destination”. Did yours tell you to “stay below 60“ But the AI speed would not follow it? If so, it’s another condition to bring back the scroll wheel.

 

[Facedown]

When FSD 14.2 first came out for the CT it was beautiful. When Elon talks about sentience this is what he meant. However, they immediately nerfed it with the next update and even more so with subsequent updates. Since then they have continued to water down FSD. What was mad max has become standard. Hurry is a joke. If I have hurry as my mode should I go 40 in a 45? They f'd up speed profiles. In conjunction with the broken navigation it has become clear that they've lost their way. I'm not one of those Tesla doubters nor haters. I'm all on board. But I can't ignore how they've screwed this thing up.

I can only hope that they fix this thing. I have long since gotten over my ego while driving and understand the car will never drive like I drive. But if I am constantly having to manage the accelerator then it is not FSD. I'm on build 14.2.2.5 and FSD creates dangerous situations that require intervention. Who thought that in hurry mode it would be a good idea to get left to pass, go 5 miles under the speed limit, when you have to turn right in 0.3 miles. That's some stupid and frustrating stuff right there. Then, of course, the scroll wheel push only disengages 25% of the time so I have to either jerk the wheel or tap on the brakes to stop the truck from doing something stupid.

And shall we talk about turn signals?!? Why on God's green earth would it turn on the signal before the intersection that is the intersection before your turn. This is especially bad when you are going to turn into a shopping center entrance, for example. The entrance is 200 yds after the intersection and FSD will start the signal 200 yds before the intersection so traffic on the side street thinks you are turning at the light. Is it really so hard to understand those situations?

Long rant. But their quest to make it safer has made it more dangerous in the real world. I'm hopeful they get a good build and stop the backsliding.

 

[georgek43]

When FSD 14.2 first came out for the CT it was beautiful. When Elon talks about sentience this is what he meant. However, they immediately nerfed it with the next update and even more so with subsequent updates. Since then they have continued to water down FSD. What was mad max has become standard. Hurry is a joke. If I have hurry as my mode should I go 40 in a 45? They f'd up speed profiles. In conjunction with the broken navigation it has become clear that they've lost their way. I'm not one of those Tesla doubters nor haters. I'm all on board. But I can't ignore how they've screwed this thing up.

I can only hope that they fix this thing. I have long since gotten over my ego while driving and understand the car will never drive like I drive. But if I am constantly having to manage the accelerator then it is not FSD. I'm on build 14.2.2.5 and FSD creates dangerous situations that require intervention. Who thought that in hurry mode it would be a good idea to get left to pass, go 5 miles under the speed limit, when you have to turn right in 0.3 miles. That's some stupid and frustrating stuff right there. Then, of course, the scroll wheel push only disengages 25% of the time so I have to either jerk the wheel or tap on the brakes to stop the truck from doing something stupid.

And shall we talk about turn signals?!? Why on God's green earth would it turn on the signal before the intersection that is the intersection before your turn. This is especially bad when you are going to turn into a shopping center entrance, for example. The entrance is 200 yds after the intersection and FSD will start the signal 200 yds before the intersection so traffic on the side street thinks you are turning at the light. Is it really so hard to understand those situations?

Long rant. But their quest to make it safer has made it more dangerous in the real world. I'm hopeful they get a good build and stop the backsliding.

I too am neither a Tesla hater nor a Tesla fanboi. I’m a customer who loves my FSD. I’m in my second Cybertruck- I really love both the vehicle and FSD. And I’m delighted that my 2026 CT was delivered with FSD13. I have no intention of updating to 14 until it’s fixed, which at the very least means returning easy speed correction to the driver.

14 has some nice features, but I’m really happy to be back on 13 with the scroll wheel speed set. All the added ‘sentient’ features and E2E do not compensate for the loss of driver speed control.

Speed management is my biggest complaint about 14, but speed is easily corrected in 13. And 13 has no crazy behavior like 14. A little less sentient but a lot more useable. And a whole lot less driver input because it pretty much maintains the speed you set without constant scroll up-scroll down-never correct speed profiles that require far too many steps on the accelerator as it slows down for no particular reason or disengagements because it’s way over the speed limit or safe speed for real world conditions.

13 may be a little less autonomous than 14 but it’s a much better driver assist system. For me, the too slow-too fast-rarely right ‘speed profile‘ setup of 14 ruined FSD, even before the last build’s crazy turns, swerves and phantom stops pushed FSD14 toward too dangerous to comfortably use.

Developers: PLEASE Bring back the speed scroll wheel control. At least as an option- then owners like me who have a low tolerance for driving errors can happily use FSD again.

 

[NICKEM]

Nor does it speed up when the posted speed limit goes up

I gotten a speeding ticket with FSD Standard Profile. Speeding 14 MPH over limit (50 mph)!
FSD does not always slow down when the posted speed limit changes to slower :-(

 

[georgek43]

Nor does it speed up when the posted speed limit goes up

I had FSD14 on my 2024 and had the same issues, including not sliding fund or speeding back up as the speed limit changes. I drive secondary roads through a lot of small towns where the died limit is strictly enforced so not complying is a problem. I had taken to simply disengaging FSD when I approached a town.

in late march I traded for a 2026 CT that came loaded with FSD13. I’d forgotten how much easier it was to use. Not only can you correct the speed so easily on the scroll wheel, but it also almost always slows or speeds up when the speed limit changes, and smoothly goes up or down to the percentage offset you have set for speed.

FSD13 is not perfect but for me it’s a far better driver assist system than FSD14 simply because I can precisely correct the speed to match real world conditions.

It’s a shame that usability has slipped so far when the intent was to make it better at being more autonomous. I am all for the advances, but I really want the ability to set speed myself, whether that’s a correction required by bad speed limit data or a misperception of the conditions by the AI. Just bring back at least an option to use the scroll wheel for those of us who cannot tolerate the imprecision and errors of the AI setting speed and I think everyone would be happy.

 

[CyberGus]

I arrived with 10%

My last road trip, the nav showed I would arrive with negative SoC due to driving at the highly inefficient 85MPH. I slowed down just enough to arrive at like 3% lol.

I wanted to roll in at 0% but the lady was giving me the death stare hahahaha

 

[bg002h]

My last road trip, the nav showed I would arrive with negative SoC due to driving at the highly inefficient 85MPH. I slowed down just enough to arrive at like 3% lol.

I wanted to roll in at 0% but the lady was giving me the death stare hahahaha

I should ask grok why FSD is designed to ignore nav/energy usage planning. This does not help my range anxiety, which apparently isn’t anywhere near high enough.

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