NHTSA and Transport Canada are concerned about Tesla's removal of the Autopilot 'nag' screen
@Greentheonly/Twitter
On the day that the National Highway Traffic Safety Administration (NHTSA) released information about roadway fatalities, reporters were more interested in anything Tesla-related. Reuters stated the acting head of the NHTSA, Ann Carlson, made “comments to reporters on the sidelines of an event in Washington.” Those sideline comments were regarding the government’s review of crashes involving Teslas and the possibility of removing the steer wheel “nag” for Autopilot.
By the way, the NHTSA reported that fatalities due to car crashes in the United States appear to be leveling off after dramatic increases over the last two years. But back to Tesla.
Carlson told reporters that the government agency is investing a lot of resources in the Autopilot investigation that started in August of 2021. The acting head told Reuters, “The resources require a lot of technical expertise, actually some legal novelty, and so we're moving as quickly as we can, but we also want to be careful and make sure we have all the information we need."
Autopilot Changes are Coming
Part of the review is also said to investigate if drivers are paying attention when operating Tesla vehicles in Autopilot. The onboard alert system that assesses driver awareness has been activated in several crashes that the agency is investigating, which is why Carlson took particular interest in Elon Musk's recent tweet.
As we reported, Musk responded to a tweet from @WholeMarsBlog asking users with more than 10,000 FSD miles driven could have the option to disable the “tedious steering wheel nag.” Musk responded, "Agreed, update coming in Jan."
Carlson told reporters, “A very extensive investigation ongoing... We are in conversations with Tesla about this latest communication."
Removing the Nag
Musk also recently tweeted that a significant Full Self Driving update was coming in two weeks, including many major improvements. Given the timeline, this change to the steer wheel tension could be part of the FSD Beta V11.3 update. Therefore, it makes sense that the NHTSA has been in contact with Tesla. The results of its investigation could significantly impact the future of the autonomous vehicle vision that Musk has been working toward for years.
According to a recent tweet from DirtyTesla, he states a source told him that Transport Canada is already considering disallowing FSD Beta in Canada and that the removal of the steering wheel 'nag' could be the deciding factor.
DirtyTesla shared the message on Twitter:
"Transport Canada has been close to recommending they pull the plug on Beta in Canada because they don’t feel testing beta software with road users is safe. If the nag is removed they will most likely recommend it be pulled."
What Tesla Should Do
Tesla's reliance on detecting force being applied to the steering wheel was never a great solution. It doesn't provide continuous monitoring and it doesn't always properly detect resistance on the wheel, causing a lot of "not paying attention" prompts.
It sounds like Tesla is already in talks with the NHTSA, so we are hopeful that they're reaching an agreement they both feel good about. Other Advanced Driver Assistance Systems (ADAS), such as BlueCruise already have hands-free driving on select highways. BlueCruise only monitors driver behavior through a camera similar to Tesla's in-cabin camera.
Instead of Tesla phrasing this as the 'removal of the steering wheel nag,' they should state that they'll be transitioning to better driver monitoring by leveraging their cabin camera and machine learning. Tesla launched vison-based driver monitoring two years ago. There have undoubtedly been improvements and they should state that they're now ready to transition to a system that allows improved monitoring while also reducing the need to 'nag' drivers at specific intervals.
Over the past seven years, the NHTSA has conducted nearly 40 special investigations where authorities suspected Autopilot was in use so their concern is understood, however, Tesla could do better to put them at ease.
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.
![Elon talks about Twitter and job cuts at Bloomberg forum [video]](https://www.notateslaapp.com/images/news/2022/elon-musk-qatar-forum_300w.jpg)
