FSD v14 “Max Speed” Workaround (Not Perfect, But Helpful in Bad Conditions)

[browncowboy]

Thank you, I’ll try this in my neighborhood. I used FSD13 pretty much 100% of the time for almost a year in my neighborhood because I could easily set the speed. Since FSD14 taking away that option, I must repeatedly disengage because of improper speed management. My neighborhood is 25mph with a few spots at 15mph or 10mph, but the vehicle thinks it‘s all either 30mph or 45mph. I’ll try setting the max speed limit to 25 while I’m in my community, but I’ll have to remember to change that when I leave my neighborhood, and that’s a little inconvenient. It misses most if the posted signs even though they are clearly visible. It was SO MUCH BETTERVAND EASIER with the scroll wheel!

thanks I’ll try it. I used FSD13 almost 100% of the time in my 25mph community. FSD14 is useless there as the vehicle thinks the limits are 30mph or 45mph. Maybe this will work until some adult in Austin realizes how the real world works and restores the scroll wheel speed control.

yeah it’s definitely a problem and the workaround isn’t perfect. The lowest you can set the Max Speed with this method is 50 mph. So it may not work for your neighborhood use case. It could help out on the highway or roads with higher speed limits in adverse weather. Really wish they bring back the scroll wheel max speed control for sure.

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[georgek43]

I hadn’t tried it yet, so thanks for the heads up. Too bad It won’t drop to 25! That would have put me back using FSD in my neighborhood!

 

[HaulingAss]

yeah it’s definitely a problem and the workaround isn’t perfect. The lowest you can set the Max Speed with this method is 50 mph. So it may not work for your neighborhood use case. It could help out on the highway or roads with higher speed limits in adverse weather. Really wish they bring back the scroll wheel max speed control for sure.

If I want to go slower I just put it in Chill or Sloth Mode. Generally I'm in Hurry or Mad Max (and sometimes I still need to press the accelerator if I want to go faster).

 

[browncowboy]

If I want to go slower I just put it in Chill or Sloth Mode. Generally I'm in Hurry or Mad Max (and sometimes I still need to press the accelerator if I want to go faster).

Yeah, this works except when you’re driving through freezing rain and a mountain pass.

On my current road trip FSD did a great job limiting max speed automatically in all modes.

However when I approached downhill curves while the freezing rain was coming down, I felt 60 mph was a bit too fast. All cars surrounding had reduced to around 50 mph.

Even in Sloth FSD wasn’t slowing. I ended having to disengage multiple times. In this scenario the previous solution was easy simply reduce max speed via scroll wheel.

So after thinking a bit I came up with this temporary and admittedly imperfect workaround.

 

[REM]

It was a bad decision based on marketing

Utter non-sense; nothing to do with marketing. Tesla is slowly and methodically removing user input controls exactly like they said they would several years ago.

 

[Beetlebug62]

Hey folks — wanted to share something I’ve found helpful with FSD v14, especially after Tesla removed the ability to adjust max speed via the scroll wheel.

Like many of you, I’ve found this change pretty frustrating in certain scenarios — freezing rain, snow, curvy canyon roads, low-visibility conditions, etc. There are times when you simply want FSD to cap out at a slower speed, and v14 doesn’t make that obvious anymore.

The workaround:
There is still a way to set a maximum speed cap that FSD will honor.

Key points:

• You can set a max speed as low as 50 mph
• You can also set it higher if desired
• Once set, it’s honored in FSD and manual driving
• It must be set or changed while in Park
• You’ll need to unset/reset it if you want to change behavior later

Important caveats:

• This is not a perfect solution
• It’s not dynamic like the old scroll-wheel adjustment
• It’s a bit clunky compared to previous versions

That said, it does give you back a degree of control that can make a big difference in adverse driving conditions.

I put together a short YouTube clip showing exactly where this setting lives and how to use it step-by-step:

Video walkthrough:


Hopefully Tesla brings back proper on-the-fly speed control in a future update, but until then, this might help anyone who’s been missing that functionality.

Curious if others have been using this, or if you’ve found any better workarounds.

Ok, I get it, this is for bad weather days even though FSD does recognize visibility is limited and slows, it's still not going slow enough for many drivers who want more granular control.

In my old Model 3, I used to have multiple driver modes.

One I called SnowDay, which changed my accel to "chill", and regen to minimal. Plus my seat moved back an inch, because I'm probably wearing snow boots, and my torso moved more upright so I could see better and feel alert.

I don't have multiple driver modes in my CT, because it asks for me to send an email invite. Anyhow, I was wondering if you could just set multiple driver modes like: 45mph, 40mph; (EDIT, no limits under 50mph), 75mph, etc. Then you just toggle as necessary. Or even use Parental Controls, because it not only can limit max speed, but also turns on Chill accel, etc.

 

[Circ]

I was thinking it’d be helpful if the truck could save profile choice with location like it does for ride height. Every time FSD turns in to lane leading to my house I scroll it down to sloth from hurry - would be great if the truck would remember those choices in an editable list.

 

[browncowboy]

Offset doesn't work with FSD, but that stinks.

it worked with V13 along with max speed control through scroll wheel.

I think Tesla took out these controls to get data on how vehicle reacts without intervention and user input to refine the AI model.

I'm okay with a short term struggle if that’s the case. I would really like to see this resolved either through improved model training.

Although, manual control through the scroll wheel for max speed has many use cases.

Here is one:


I was hauling a portable industrial 500 pound oven in the bed. I wanted FSD to drive but I wanted to go much slower due to the way the load was secured. This was with V13. I was able to set the speed to 45 mph in chill and with hazards on I felt safe transporting this load.

 

[SCTesla]

it worked with V13 along with max speed control through scroll wheel.

I think Tesla took out these controls to get data on how vehicle reacts without intervention and user input to refine the AI model.

I'm okay with a short term struggle if that’s the case. I would really like to see this resolved either through improved model training.

Although, manual control through the scroll wheel for max speed has many use cases.

Here is one:


I was hauling a portable industrial 500 pound oven in the bed. I wanted FSD to drive but I wanted to go much slower due to the way the load was secured. This was with V13. I was able to set the speed to 45 mph in chill and with hazards on I felt safe transporting this load.

Tesla said they took the options out because it was too difficult with E2E. It's not supposed to be a temporary thing.

 

[browncowboy]

Tesla said they took the options out because it was too difficult with E2E. It's not supposed to be a temporary thing.

Oh really? Can you share where they said this? I’d love to read up more about that.

 

[SCTesla]

Oh really? Can you share where they said this? I’d love to read up more about that.

This is the guy who originally implemented "Max Speed".



FSD with "set speed" was awesome if the FSD was better. You can go up 1 or 2 or flick the scroll wheel to go up or down 5. There was a ton of resistance to "Max Speed"...most said "It has to come back"...but they keep going further. I assume eventually there will be less options.

 

[browncowboy]

This is the guy who originally implemented "Max Speed".



FSD with "set speed" was awesome if the FSD was better. You can go up 1 or 2 or flick the scroll wheel to go up or down 5. There was a ton of resistance to "Max Speed"...most said "It has to come back"...but they keep going further. I assume eventually there will be less options.

thanks for sharing this. I’ll be commenting on Phill’s post about all the reasons a user may still want speed control. This isn’t a Robotaxi yet, and there are numerous use cases for wanting to use FSD and specify speed especially in adverse weather, hauling loads, and more.

 

[D101010]

I agree. Capping max speed which cannot be changed unless in park is potentially dangerous.

There we go this will get their attention if people are using unsafe workarounds Tesla will address in the name of Safety.

 

[SCTesla]

thanks for sharing this. I’ll be commenting on Phill’s post about all the reasons a user may still want speed control. This isn’t a Robotaxi yet, and there are numerous use cases for wanting to use FSD and specify speed especially in adverse weather, hauling loads, and more.

There are a ton of comments and breakdown by others who develop stuff E2E. Basically the consensus is that you can have manually set speeds, but it degrades the performance of FSD and the ability to make decisions.

It's why the speed profiles are so inconsistent and they can't simply be Sloth= X.

 

[ireallyboughtoneofthese]

In my opinion this is potentially dangerous to limit top speed to a low number. Even in adverse conditions, there may be a need to go faster momentarily to avoid accidents or dangerous situations, and this would not let you do that.

In adverse conditions, when using FSD - it is better to switch to chill mode. In snow and in rain, FSD will limit speed if it senses adverse conditions. I've had it limit to 60mph when in a downpour - this was automatic and when I pressed the pedal to tell it to go faster, it would not.

The danger here lies with the high speed in winter adverse driving. Had black ice as far as the eye could see in Michigan a couple weeks ago. Road looked clear so FSD just kept trying to cruise at 65-75 even in sloth and chill. Also was way too close to semis to just ride slow behind them.
Anywho the speed limit level is super helpful. FSD would have been fine if I could set to 45 or 50 but was going to run me off the road at 65.
General traffic flow that day was 40-45 for the unbelievers living in the south hehe

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