Tesla has rolled out another set of improvements to its Service Mode; if you're a Tesla owner aiming to keep abreast of the latest features and optimizations available in Service Mode, the recent update is for you.
Service Mode provides essential details and diagnostic tools to ensure your Tesla is operating at its peak potential. Service Mode is a specialized function initially reserved for service technicians but accessible to Tesla vehicle owners.
Taking user convenience and information accessibility to a new echelon, the latest addition to Service Mode becomes your one-stop shop for everything that's new or improved in Service Mode. This mode avails critical data and facilitates diagnostic tests for various vehicle components, offering a deep dive into the vehicle's operational status.
Service Mode Release Notes
A spotlight feature in the 2023.32 update includes a new, separate section where users can access release notes that are specific to Service Mode. After entering Service Mode, you can tap Release Notes to open a new menu that outlines improvements made to Service Mode in this vehicle update.
The release notes breakdown all the new Service Mode features included in the current update, 2023.32, and previous updates as well. Each new feature is listed with a description and which vehicles it applies to. You can also tap the section name in blue to jump directly to that area in Service Mode.
One of the major changes in Service Mode in update 2023.32 is the ability to view the status of the vehicle's Electronic Control Unit (ECU) under Infotainment > ECU Update Status, which allows monitoring the status of various sensors and vehicle sub-systems.
Tesla now has release notes for Service Mode
Niner
Other Service Mode changes in 2023.32 include Enhanced Service Alerts, ability to Update Low Voltage Battery Type and Enhanced Heat Pump panels.
The last two Tesla vehicle updates have included significant Service Mode advancements that users may want to check out. The 2023.26 update introduced health checks including the much-appreciated 'Airbags Screen' where users can scrutinize the status and operational health of all vehicle airbags. The update also extended diagnostic options for steering wheel stalks, the low-voltage battery system, and a camera pitch verification feature, which could potentially aid in diagnosing issues such as misaligned front cameras, a problem noted in some 2023 vehicle models.
Use Caution in Service Mode
However, users have reported that exiting Service Mode is taking a notably long time, leaving some room for improvement.
It is advised that while exploring these features, owners should exercise caution, understanding the implications fully before making any adjustments to avoid potential repercussions on vehicle safety and performance.
Tesla continues to make the Service Mode a more robust tool, with each update. While primarily designed for technicians, the level of detail and insight provided in this mode is a boon for Tesla vehicle owners eager to understand and maintain their vehicles at optimal levels. It embodies Tesla vision of not just creating a car but offering a comprehensive vehicle experience that puts control and information right at the owners fingertips.
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.
_300w.png)
