While Tesla’s futuristic new Cybercab was truly the highlight of its recent ‘We, Robot ‘event, Tesla did have some other tricks up its sleeve—like the Robovan. But even beyond that, they had plenty of other secrets they showed off but didn’t announce during its keynote.
One of the largest unannounced features is Unsupervised FSD and FSD V13. So, let’s look at what Tesla’s AI team has been cooking up in the background.
Unsupervised FSD
Elon Musk confirmed at the We, Robot keynote that Unsupervised FSD was coming. And while we know it’s been the pie in the sky for Tesla to achieve for quite a while, it was something else to see it in action at the event. Musk even provided dates and locations.
The initial locations in which Unsupervised FSD will be available will be Texas and California sometime in 2025. Additionally, that will be initially limited to Model 3 and Model Y vehicles, with it rolling out to Cybertruck and Models S and X shortly afterward. The Cybercab isn’t expected to hit production until late 2026.
Many states follow California, New York, and Texas’ direction on legislation – and for the tech sector – it's primarily focused on following California. Interestingly enough, this also includes Canada, which generally follows along once New York approves something (due to the closeness and population that crosses the border every day).
So, we could be looking at Unsupervised FSD arriving throughout North America faster than most people think. It is conceivable that by the end of 2025, Unsupervised FSD will be available in multiple US States.
FSD V13
If you use FSD or have been following it, you know that it's unable to reverse the vehicle in its current state. Currently, it can only reverse when using Actually Smart Summon, but not when using FSD on regular roads.
One of the goals for Tesla’s AI Roadmap is to bring FSD V13, with Park, Unpark, and Reverse being some of the key features. Apparently, the Robotaxis (and specifically - a Model Y Robotaxi) at We, Robot was capable of reversing and conducting 3-point turns. This video below from AI DRIVR on X shows the vehicle reversing at the event.
FSD V13's ability to reverse is an excellent example of the team’s progress on the next batch of features. Tesla also demonstrated the Unpark feature at the event—when the Robotaxi pulled up at the curb, it smoothly shifted out of park and proceeded. We predicted we’d see these features come to life at the Robotaxi event, and apparently, the prediction was right.
We’re excited to see what’s coming next. FSD V12.5.6 has been on early-access tester vehicles for about a week now, and FSD V12.5.5 has already been released to most Cybertrucks on the road.
It seems that the next major version that goes out wide may be FSD V13, with a litany of new features. Of course, the ability to reverse is just one of the biggest features - we’re looking forward to Banish Autopark and Autopark becoming smoothly integrated into FSD as well.
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Tesla’s been on a roll with Supercharger improvements lately, from the 325kW charging update for the Cybertruck, to 500kW with V4 Superchargers coming next year. While those improvements have been limited to the Cybertruck, Tesla didn’t put all their focus on their new flagship vehicle, but looked at their more affordable vehicles as well.
LFP Battery Heating
Tesla’s Superchargers can now heat LFP Batteries - those that are in the Model 3 and Model Y Rear Wheel Drive variants. This applies to Long Range and Standard Range models, which saw a limited run. This is another update included as part of the 2024 Tesla Holiday Update - which really arrived with a lot of unannounced new features and capabilities.
The change is pretty interesting - Superchargers of the V3 and V4 variety can now pre-heat batteries for Model 3 and Model Y vehicles equipped with LFP battery packs. That means those vehicles are able to get back on the road faster when it's extremely cold. Of course, Tesla still advises you to precondition before you arrive, saving drivers time and money.
Max de Zegher, Tesla’s Director of Charging, also commented on the new feature. Essentially, Tesla is inducing an AC (alternating) ripple current through the battery to warm it up. Keep in mind that Superchargers are DC charging. That means it is possible to get a cold-soaked LFP vehicle on the road 4x faster than before, assuming that it didn’t precondition at all and that it is in the worst-case scenario (below 0ºF).
In essence, Tesla is using some engineering magic to turn the circuits inside the LFP battery into an electric heater - and powering that heater through the Supercharger. An AC ripple current is a small oscillation in the DC charging current that generates heat through electrical resistance, warming up the battery. Those ripples are a byproduct of converting AC to DC and back - so Tesla is using the onboard charger to induce those ripples to warm up the battery. Definitely an innovative technique that’s really only possible with the versatility of the NACS connector.
We’re hoping Tesla can implement this across their full lineup of vehicles, but we’ll have to wait and see how it is trialed across LFP vehicles first and if it is even possible on vehicles with 2170 or 4680 battery packs.
Tesla launched two FSD updates simultaneously on Saturday night, and what’s most interesting is that they arrived on the same software version. We’ll dig into that a little later, but for now, there’s good news for everyone. For Hardware 3 owners, FSD V12.6.1 is launching to all vehicles, including the Model 3 and Model Y. For AI4 owners, FSD V13.2.4 is launching, starting with the Cybertruck.
FSD V13.2.4
A new V13 build is now rolling out to the Cybertruck and is expected to arrive for the rest of the AI4 fleet soon. However, this build seems to be focused on bug fixes. There are no changes to the release notes for the Cybertruck with this release, and it’s unlikely to feature any changes when it arrives on other vehicles.
FSD V12.6.1 builds upon V12.6, which is the latest FSD version for HW3 vehicles. While FSD V12.6 was only released for the redesigned Model S and Model X with HW3, FSD V12.6.1 is adding support for the Model 3 and Model Y.
While this is only a bug-fix release for users coming from FSD V12.6, it includes massive improvements for anyone coming from an older FSD version. Two of the biggest changes are the new end-to-end highway stack that now utilizes FSD V12 for highway driving and a redesigned controller that allows FSD to drive “V13” smooth.
It also adds speed profiles, earlier lane changes, and more. You can read our in-depth look at all the changes in FSD V12.6.
Same Update, Multiple FSD Builds
What’s interesting about this software version is that it “includes" two FSD updates, V12.6.1 for HW3 and V13.2.4 for HW4 vehicles. While this is interesting, it’s less special when you understand what’s happening under the hood.
The vehicle’s firmware and Autopilot firmware are actually completely separate. While a vehicle downloading a firmware update may look like a singular process, it’s actually performing several functions during this period. First, it downloads the vehicle’s firmware. Upon unpacking the update, it’s instructed which Autopilot/FSD firmware should be downloaded.
While the FSD firmware is separate, the vehicle can’t download any FSD update. The FSD version is hard-coded in the vehicle’s firmware that was just downloaded. This helps Tesla keep the infotainment and Autopilot firmware tightly coupled, leading to fewer issues.
What we’re seeing here is that HW3 vehicles are being told to download one FSD version, while HW4 vehicles are being told to download a different version.
While this is the first time Tesla has had two FSD versions tied to the same vehicle software version, the process hasn’t actually changed, and what we’re seeing won’t lead to faster FSD updates or the ability to download FSD separately. What we’re seeing is the direct result of the divergence of HW3 and HW4.
While HW3/4 remained basically on the same FSD version until recently, it is now necessary to deploy different versions for the two platforms. We expect this to be the norm going forward, where HW3 will be on a much different version of FSD than HW4. While each update may not include two different FSD versions going forward, we may see it occasionally, depending on which features Autopilot is dependent on.
Thanks to Greentheonly for helping us understand what happened with this release and for the insight into Tesla’s processes.
