Auto-close windows feature is being removed from Tesla vehicles
Not a Tesla App
An updated Federal regulation from the NHTSA no longer allows for auto-close windows via the car or an app, among other features.
Tesla owners took to social media to share their frustration of their vehicles missing the set-it-and-forget-it auto-close window features.
Twitter user and Tesla owner @Tommyf902 reached out to Tesla Service to get additional information about the issue. Tesla Service responded, “Due to recent federal regulations, certain automatic window features will not be available until further development.”
The features that Tesla Service are referring to include:
Rolling window(s) up/down with physical switches unless the vehicle’s brake pedal has been pressed
Venting/closing the windows via the Tesla mobile app
Automatically closing the windows once the vehicle has locked
Automatically closing the windows when the vehicle is in Car Wash Mode
Tesla service responds to @Tommyf902 about his window auto-close feature being unavailable
@Tommyf902/Twitter
Although not specifically mentioned by Tesla Service, this will likely limit the movement of the windows during Tesla's Light Show feature as well.
This updated safety guidance by the NHTSA isn’t just restricted to windows, either. It also applies to roof panel systems and partitions.
“This standard applies to passenger cars, multipurpose passenger vehicles, and trucks with a gross vehicle weight rating of 4,536 kilograms or less. This standard's inadvertent actuation performance requirements of S6(a) need not be met for vehicles manufactured before October 1, 2008. The standard's pull-to-close switch operability requirements of S6(c) need not be met for vehicles manufactured before October 1, 2010.”
The operation of a power-operated window, partition, or roof panel system may only be closed when the vehicle’s engine is set to “ON,” “START,” or “ACCESSORY” position; by “muscular force unassisted by vehicle supplied power”; or upon continuous activation of a locking system on the exterior of the vehicle, among others. In Tesla Service’s message to Tommy, the wording said “until further development.”
Availability in the Future
The code of federal regulation does state that a window can be opened remotely if the device is pressed continuously and is no more than 6 meters (19.5 feet) away from the vehicle, although it can not be capable of closing the window or partition. There are also some exceptions based on the window's ability to detect force. According to the regulation, the window would need to be capable of stopping and reversing direction if it exerts a force equal to 100 newtons or more.
New Teslas are already being delivered without the ability to remotely close windows, so it sounds like Tesla may not have a solution that meets regulations, at least not yet. Tesla may be working on a solution or waiting for updated guidance from the NHTSA. So while the feature may not currently be available now, Tesla may roll out a fix or workaround to the problem.
Update: As pointed out by one of our readers, it looks like the federal regulations that Tesla service is referring to may be different than those linked in this article. Those regulations do not appear to have changed in recent years. It's not clear whether this will affect current vehicles, but we should know more soon as Tesla is expected to release the next major update in the next two weeks.
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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.
