Tesla has halted the rollout of FSD Beta to new owners until NHTSA's concerns are addressed
Not a Tesla App
Tesla recently issued a voluntary recall for all vehicles in the US and Canada that have installed or are pending installation of the Full Self-Driving (FSD) Beta software. The recall comes as a response to the National Highway Traffic Safety Administration’s (NHTSA) investigation into Tesla’s automated driving systems, which found that FSD Beta could potentially deviate around intersections and not always follow speed limits, increasing the risk of collision.
Cautious Recall
NHTSA’s testing found that Tesla’s FSD Beta testing led to an unreasonable risk to motor vehicle safety based on insufficient adherence to traffic safety laws. NHTSA communicated concerns to the automaker on January 25. On February 7, Tesla decided to do the recall out of an "abundance of caution, while not concurring with the agency’s analysis.”
Rollout of FSD Beta Halted
The recall affects almost 363,000 vehicles and has paused the rollout of FSD Beta to all who have opted in but have yet to receive the FSD Beta software. Musk, who was tagged on a post about the terminology of recall, again tweeted his angst toward the term. Musk said the word “recall” "for an over-the-air software update is anachronistic and just flat wrong!".
Will This Delay FSD Beta 11.3?
Owners who already have FSD Beta installed will be able to continue using it without any changes. However, this has the potential to delay the rollout of FSD Beta 11.3 since Tesla wants to issue a fix as soon as possible.
It's not clear whether Tesla will release a small update to the existing beta that addresses NHTSA's concerns or if Tesla will simply roll the fixes into FSD Beta 11.3. Given Tesla's recent focus on FSD Beta 11.3, the latter seems more likely. Whichever the case, it seems that Tesla is prioritizing fixes that address the NHTSA's concerns.
Company Lists Issues to be Corrected
The company's recall will be handled with an over-the-air software update to improve how FSD Beta negotiates certain driving maneuvers during specific conditions. Tesla noted these situations, traveling through certain intersections during a stale yellow traffic light, adjusting vehicle speed while traveling through variable speed zones, or negotiating a lane change out of certain turn-only lanes to continue traveling straight.
The recall is a serious action against the electric vehicle maker. It raises questions about Musk’s claims that he can prove to regulators that cars equipped with FSD are safer than humans and that humans rarely have to touch the controls. Musk at one point had promised that a fleet of autonomous Robo-taxis would be in use in 2020, and those units are under-development.
Since January 2022, Tesla has issued 20 recalls, including several required by NHTSA. However, the automaker continues to lead the industry in safety standards. Statistics reveal that Tesla’s Autopilot is ten times safer than those piloted by a human and 2.5 times safer even with Autopilot not engaged.
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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.
