Latest FSD Driving me nuts not going the speed limit

[JackCypher]

Why I can’t stand FSD on the highway:

Every long highway drive ends the same way: Me wondering if anyone at Tesla actually uses this out on the open road/highways across US or if it just learned from the worst drivers on the roads.


Here’s what consistently ruins it for me:

• Lane changes are hesitant and jerky. It wiggles side to side before committing instead of just… changing lanes like a human would.
• Passing behavior is late and inefficient. It waits until it’s right up on the slower car, slows down, then decides to change lanes. I’d much rather it anticipate earlier and maintain speed.
• Mid-pass hesitation is a real problem. After changing lanes to pass, once I’m alongside the slower car, it often slows down and matches their speed. I end up stuck driving next to them until I press the accelerator.
• Post-pass slowdowns make no sense. Once it moves back in front of a car it just passed, it frequently slows down again instead of holding speed.
• It cannot hold a steady speed. Especially on hills. It doesn’t add power proactively, so speed constantly rises and falls, disrupting traffic and irritating drivers around me. I can't tell you how many times I have to hit the accelerator and tell it to speed up. Too many times per drive!
• Speed control is bizarrely rigid. We need manual speed control back. Period. Tesla does not know better here. On long trips in a 65 mph zone, I like going 70. Standard insists on 72. Chill insists on 67. There’s no way to simply set the speed I actually want. Chill is too slow for me. Standard makes me feel like I'm having to keep an eye out for cops now instead of getting to relax and cruise.
• Manual lane change commands are unreliable. When I tap the stalk, it often doesn’t respond immediately — and sometimes it doesn’t respond at all.
• Speed-limit changes are handled poorly. Sometimes it doesn’t react at all. Other times it reacts aggressively with full regen instead of a smooth adjustment — which repeatedly wakes sleeping passengers on road trips.
• When it doesn’t slow enough for speed changes, I end up scrolling down to Chill and back to Standard just to force it to reset to the usual “5 over” behavior… again with abrupt regen and zero smoothness.

Because of all this, I can’t actually relax. I’m constantly intervening — tapping the accelerator, scrolling modes, nudging lane changes — which completely defeats the purpose of using FSD.

For comparison, I genuinely enjoy using the “dumb” adaptive cruise control in my Mercedes more. I set one exact speed and it holds it uphill and downhill. Lane changes happen instantly when I tap the turn signal. Auto lane changes pass sooner instead of tailgating first. No random slowdowns. When speed changes — automatic or manual — they’re smooth and predictable.

As a result, I can actually relax more in that car on long trips than I can using FSD in the Cybertruck. With FSD, it feels like constant active management and babysitting — not autonomy.

Agree as also a Mercedes owner the Mercedes lane/distance keeping cruise control is the best of both worlds. It's a very good co-pilot taking care of the nuances of lane and car-to-car positioning without taking over complete control of the car....without watching YOU

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[Tommytrader]

This is BS.

I have almost 70k highway miles and a rock hasn't even touched my windshield. The design of the CT helps with that. There was a thread of people talking about this. It's not anecdotal, rocks just fly right over the windshield.

The follow distance is set by FSD. Speed, conditions, etc. It will follow as close as it calculates it will be able to react.

I agree that speed controls are broken, but as far as I can find there have been no FSD caused rear-end accidents at or above 45 mph (there have been 6 under 35 mph and 1 I saw at 41 mph). It may make you uncomfortable, but all the data shows it's perfectly safe.

Sorry you think that my reply is BS.
I live west of Houston and there is significant gravel mining in the area, most of which is hauled to either Houston, San Antonio, or Austin. Some of the rocks end up on the highway. Having spent years in the collision repair and glass replacement business, I know from personal experience, as well as information sourced from insurance providers, the incident rate in our area is much higher than average. One customer with multiple distribution centers throughout the nation, estimated that the windshield replacement rate in our area was 10x higher than that of other locations. That being said, the design of the CT does reduce, but not eliminate, the risk of rock damage to the windshield. At less than 15k miles, I have been hit twice by rocks with no resulting damage. The slope of the glass definitely helps.

Other than that, the following distance does not bother me at all. After the/my “acclimation period “, I have become very confident in the truck’s ability to navigate safely through a variety of complex situations.

 

[georgek43]

Why I can’t stand FSD on the highway:

Every long highway drive ends the same way: Me wondering if anyone at Tesla actually uses this out on the open road/highways across US or if it just learned from the worst drivers on the roads.


Here’s what consistently ruins it for me:

• Lane changes are hesitant and jerky. It wiggles side to side before committing instead of just… changing lanes like a human would.
• Passing behavior is late and inefficient. It waits until it’s right up on the slower car, slows down, then decides to change lanes. I’d much rather it anticipate earlier and maintain speed.
• Mid-pass hesitation is a real problem. After changing lanes to pass, once I’m alongside the slower car, it often slows down and matches their speed. I end up stuck driving next to them until I press the accelerator.
• Post-pass slowdowns make no sense. Once it moves back in front of a car it just passed, it frequently slows down again instead of holding speed.
• It cannot hold a steady speed. Especially on hills. It doesn’t add power proactively, so speed constantly rises and falls, disrupting traffic and irritating drivers around me. I can't tell you how many times I have to hit the accelerator and tell it to speed up. Too many times per drive!
• Speed control is bizarrely rigid. We need manual speed control back. Period. Tesla does not know better here. On long trips in a 65 mph zone, I like going 70. Standard insists on 72. Chill insists on 67. There’s no way to simply set the speed I actually want. Chill is too slow for me. Standard makes me feel like I'm having to keep an eye out for cops now instead of getting to relax and cruise.
• Manual lane change commands are unreliable. When I tap the stalk, it often doesn’t respond immediately — and sometimes it doesn’t respond at all.
• Speed-limit changes are handled poorly. Sometimes it doesn’t react at all. Other times it reacts aggressively with full regen instead of a smooth adjustment — which repeatedly wakes sleeping passengers on road trips.
• When it doesn’t slow enough for speed changes, I end up scrolling down to Chill and back to Standard just to force it to reset to the usual “5 over” behavior… again with abrupt regen and zero smoothness.

Because of all this, I can’t actually relax. I’m constantly intervening — tapping the accelerator, scrolling modes, nudging lane changes — which completely defeats the purpose of using FSD.

For comparison, I genuinely enjoy using the “dumb” adaptive cruise control in my Mercedes more. I set one exact speed and it holds it uphill and downhill. Lane changes happen instantly when I tap the turn signal. Auto lane changes pass sooner instead of tailgating first. No random slowdowns. When speed changes — automatic or manual — they’re smooth and predictable.

As a result, I can actually relax more in that car on long trips than I can using FSD in the Cybertruck. With FSD, it feels like constant active management and babysitting — not autonomy.

Hear, hear! I’m having similar experiences- I find FSD14 is a definite downgrade in relaxed usability from FSD13, and now that it’s ‘more autonomous’ it requires more frequent driver inputs than ever before. I think users that sing the praises of the new system must have a much higher tolerance for errors than I do.

I will emphasize that my biggest frustration is terrible speed management- too fast, too slow, often incorrect for posted limits. My wife loved FSD before ‘the near autonomous upgrade’, now she insists that I do not use FSD when she’s in the car. Adjusting speed with the profiles to slow down or speed up is jerky and abrupt. It’s just not pleasant anymore. We could easily and smoothly fix the speed problems before speed profiles by simply adjusting the scroll wheel. At least bring that scroll wheel speed set back.

 

[roadrunner32]

I’m on 14.2.2.4 and on the standard profile my truck is regularly driving at 33 mph in a 40 mph zone. I have a relative speed limit offset it it doesn’t seem to matter.

Anyone else experiencing the same? I don’t want to “Hurry” I just don’t want to drive 5mph below the speed limit everywhere.

yes, 47 in a 55. originally I had this problem with my Y. now I see it my CT. I asked Grok or Chat GPT and got a reasonable understandablea reply. I dont remember all the details but it had to with it being a rural highway. You might ask AI why it does this.

 

[boley]

I’m on 14.2.2.4 and on the standard profile my truck is regularly driving at 33 mph in a 40 mph zone. I have a relative speed limit offset it it doesn’t seem to matter.

Anyone else experiencing the same? I don’t want to “Hurry” I just don’t want to drive 5mph below the speed limit everywhere.

Speed control has gotten worse. I long for the days I could just set the correct speed for the road and it would lock in. Now it frequently goes less than the speed limit even if conditions are perfect, goes over the speed limit when the conditions are bad. I'm constantly switching between all modes to try to hit the right speed for the speed limit and conditions. And what is this with it slowing down on hills? This is definitely a regression.

 

[ezzuh]

Speed control has gotten worse. I long for the days I could just set the correct speed for the road and it would lock in. Now it frequently goes less than the speed limit even if conditions are perfect, goes over the speed limit when the conditions are bad. I'm constantly switching between all modes to try to hit the right speed for the speed limit and conditions. And what is this with it slowing down on hills? This is definitely a regression.

I also miss the wheel controlling max speed, but I'm willing to be convinced that the speed profiles are a better answer. I just can't get on board with how they are now. Standard should not be doing 30 in a 35!

 

[SlegMD]

I’m trying to see if I can live without FSD, going back to TACC and driving(lol) has taken some getting used to

 

[Oscar]

I noticed FSD pays more attention to road and traffic conditions. Very often standard mode goes 70MPH on a 55 limit because everyone else drives that fast.

 

[seussiii]

I haven't experienced FSD riding anyone's ass tbh but what does drive me nuts is the continued sluggishness, it not updating its speed holds when the speed limit changes (stays 45 when its now in a 55 / a nudge fixes it every time), and general ridiculous mapping.

 

[Schroederhc]

Same for me. Speed profiles are all over the board, and they are never the same.

 

[DanK]

My CT (in any of the 5 modes) also likes to drive our rural roads at 47 in a 55....during the day, but at night FSD Mad Max accelerates past 70 on that same section of road (until I disconnect it). On several of our rural roads it drives much faster at night (all other conditions the same as during the day).

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