Tuesday, April 29, 2025

Westward Ho with Tesla Full Self Driving Supervised V12.5.4 — A Long-Distance Road Trip with Latest Version of FSD

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Background 1: Tesla Nomenclature

Someday in the past, Tesla modified the nomenclature for its most superior “Autopilot” software program from Full Self Driving (Beta) to Full Self Driving (Supervised). Tesla borrowed the Autopilot terminology from plane use, however the software program is way from full automation and isn’t true “Full Self Driving.” The “Supervised” terminology is meant to make it clear that the human driver should continuously supervise the software program and be ready to intervene at any immediate. The transfer from FSD V11 to V12 introduced the Supervised nomenclature and a giant enchancment within the software program. The software program does let your automobile drive routinely far more like a easy human driver and handles many extra conditions accurately.

I had been driving with V12.3 for a number of months, however I used to be longing for the improve as a result of we had been listening to about drivers with the most recent Tesla vehicles and computer systems utilizing and touting the efficiency of V12.5. Just a few weeks in the past, I used to be allowed to obtain and set up V12.5. simply earlier than we started our annual “Westward Ho” fall cross-country journey from Northern Wisconsin to Northern Utah. We made a small detour by our authentic hometown of Madison, Wisconsin, so the entire distance this yr was 1601 miles. Because of readers who’ve used my referral code (https://ts.la/arthur73734), I bought free Supercharging for the entire journey. (See directions on the best way to get $1000 off of a brand new Tesla on the finish of this text.)

Background 2: FSD Efficiency

Ideally Tesla would publish scientific statistical knowledge on the efficiency of their FSD software program. For instance, they may give statistics telling what number of miles you can drive utilizing the software program with no interventions. Such statistics would inform you if new variations of the software program have truly improved efficiency. Nonetheless, driving a automobile is probably very harmful and even an unusual failure might trigger a deadly accident. Tesla doesn’t give FSD efficiency knowledge, so we’re left with anecdotal evaluations just like the one one can find beneath. After I use a drug, I wish to know that it has been examined with a big double-blind examine. I don’t wish to use medicine which have solely anecdotal evaluations. That’s why I refuse to make use of non-conventional medication. Why will my anecdotal analysis be helpful to you? I’ve been driving with Tesla’s FSD now for over two years by its evolution over many variations and I’ve tracked its enhancements and written a number of articles about it. I hope this text offers you helpful details about FSD Supervised V12.5.4.

Background 3: I’m an Skilled Driver

I turned 84 not too long ago and I calculated that I’ve pushed virtually 2 million miles since I bought my license to drive at age 16. I’m sufficiently old that in some European nations I can now not hire a automobile and I’m not that a few years away from the purpose the place my children will take away my keys. Alternatively, I’m a strict teetotaler and haven’t had greater than a pair slight sheet steel bends and tail gentle breakage over these many miles. I’ve had no accidents for the final 30 years and none within the 5 years I’ve had my Tesla or the final 2+ years with FSD.

Just a few months in the past, I rented a automobile at Newark Worldwide Airport, drove by the Holland Tunnel to the Commerce Tower Memorial on Manhattan, and continued throughout Manhattan to a marriage on Lengthy Island. I’ve pushed by all 50 US states, and 35 overseas nations. I’ve pushed on the left aspect on the slender roads of England, Australia, New Zealand, Fiji, and South Africa. I as soon as drove the 873 miles from Johannesburg to Cape City in South Africa. I used to be the principle driver for our household for a lot of months within the Western Suburbs, Central Enterprise District, and Harbour Tunnel of Sydney, Australia. We even owned a automobile in “Centre Ville” Paris, France, and I drove there for six months. Nonetheless, non-locals don’t drive in some locations that I visited, like Bangkok, Tokyo, and New Delhi, due to the horrible site visitors and the truth that you usually can’t even learn the street indicators.

Background 4: Tips on how to Lose Entry to FSD

Tesla’s Autopilot has 3 ranges: L1 — the place you solely get Visitors Conscious Cruise Management; L2 — the place you get Visitors Conscious Cruise Management and Steering Help; and L3 — the place you get “full” FSD Supervised.

Whichever of those you’ve, Tesla screens your driving by insisting that you simply apply slight torque to the steering wheel each occasionally. It additionally observes your face with a digicam simply above the mirror. In case you have a look at the management display to your proper, have a look at your cellphone, shut your eyes too lengthy, or fail to tug on the steering wheel, you get a flashing blue sign on the display. In case you proceed to misbehave, you get an audible sign. In case you go on misbehaving, a giant pink steering wheel flashes on the display and also you get what’s referred to as a compelled disengagement. At that time, all Autopilot features are suspended till you cease your automobile and put it in park — then Autopilot features are restored.

Nonetheless, in case you have 5 compelled disengagements, you may now not entry L2 or L3 for roughly 7 days. For native driving, I can go months and not using a compelled disengagement. Nonetheless, on lengthy journeys, compelled disengagements are certain to occur to me despite my fixed consideration to the street. On this cross-country journey, I assumed I might keep away from compelled disengagements by driving at L2. Not true! I discovered which you could get a compelled disengagement even when utilizing L2. If there’s an upside, I used to be reacquainted with the options (and lack thereof) of L1 and L2. Additionally, I discovered that with L2, you may set speeds above the velocity restrict and have the automobile truly maintain these speeds. (Not true with L3.)

What’s Good about FSD Supervised V12.5.4?

For a whole abstract of the nice options of V12.3, which apply largely additionally for V12.5, see my article from a few weeks ago.

Because the digicam your face is a a lot better method to observe your consideration to the street than making you tug on the steering wheel, I’ve heard stories for a while that Tesla was going to take away that requirement. It seems that with V12.5 that’s the case. Nonetheless, you may’t put on sun shades (till a future improve) and there must be sufficient gentle within the cabin for the digicam remark system to work.

For the primary time on a freeway, FSD will reliably change lanes nicely forward to move a sluggish transferring automobile and promptly return to the suitable hand lane after passing!

I spent two days driving in busy downtown Madison, Wisconsin, with V12.5.4. There have been a number of 4-lane streets. My automobile would easily go round vehicles that had been parked in my lane. I used to be additionally stunned that it will go round vehicles that had been stopped within the left-hand lane ready to make a left flip. I seldom needed to intervene on the busy streets downtown close to the Capitol and the College of Wisconsin campus.

The place Does FSD Supervised Nonetheless Fail?

I discussed beforehand that Autopilot received’t essentially maintain speeds above the velocity restrict at L3. You may set a velocity, for instance, of 5 mph or extra over the velocity restrict, however with L3, it seems to be making a judgement in regards to the most secure velocity itself, which could solely be the velocity restrict or a couple of mph over it. If you wish to select and maintain a velocity in extra of the velocity restrict, use L2.

I nonetheless bought occasional phantom braking. There was a 25-mph gusty wind, however I don’t suppose there was any reputable motive for the slight braking. I additionally bought occasional slight phantom swerving. Once more, I don’t suppose it was attributable to the wind gusts. FSD could be very regular in gusty wind situations.

Up to now, FSD has been very good about protecting your automobile easily proper in the midst of the site visitors lane. Nonetheless, I noticed occasions with V12.5 when it will drift to the suitable, particularly when merging onto a freeway. It even hit the rumble strip on the shoulder of the street a couple of occasions.

V12.5.4 nonetheless received’t reliably get you out of a Walmart parking zone. I additionally observed the return to the herky-jerky movement of the steering wheel at sluggish speeds that I noticed with earlier variations of the software program.

V12.5.4. nonetheless doesn’t acknowledge faculty zones! It could blast by at ~35 mph, leading to a possible damage or not less than a dashing ticket, as a substitute of responding to the flashing lights and lowering your velocity to twenty mph (or 15 mph in some locations).

Referral Program: In case you are shopping for a brand new Tesla, Tesla has reactivated its referral program. In case you discover any of my articles useful to you, please use my referral hyperlink: https://ts.la/arthur73734 (remember to use it while you make your order). In case you are shopping for a brand new Tesla and use my hyperlink, I imagine you’ll obtain $1,000 off the acquisition value of a Mannequin S or X, or $500 off the value of a Mannequin 3 or Y. Additionally, you will get 3 months of Full Self-Driving (Supervised). Simply be ready to intervene instantly if it screws up.


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