It looks like Tesla may soon be replacing its archaic voice commands with something much more useful — a voice assistant.
Greentheonly, who often takes deep dives into Tesla software by decompiling the firmware and looking for changes, has now found the early integration of a voice assistant.
Voice Assistant Already Available in China
Tesla has already replaced its voice commands in China with a voice assistant that can not only control certain aspects of the vehicle using more natural language but can also answer common knowledge questions such as the current weather, stock quotes and more (video below).
Available Only on AMD?
Correction: Tesla’s voice assistant in China is only available on vehicles with AMD processors (MCU 3), and unfortunately not on older Intel-based (MCU 2) cars. If Tesla is utilizing the same core technologies in its upcoming voice assistant for other regions, we may see the same limitation.
Intel vehicles in China still use the voice command system we’re familiar with today.
Tesla Creating Own Assistant
According to Green's findings, it looks like Tesla may be rolling its own solution instead of integrating something like Amazon Alexa like Rivian has. Tesla created their own solution in China by using some of their own technology and several existing software solutions. However, some of them are only available in China so they don’t scale to support additional regions.
Grōk
The first thought that comes to mind is Tesla leaning on AI efforts by Grōk and xAI, which could help it support common knowledge questions and search the web for answers. However, that only gets Tesla partly there, as Alexa and Google Assistant already support a large ecosystem, one that may not be available if Tesla creates their own voice assistant. With Tesla’s solution, a driver may be limited to what devices they can control through the voice assistant, at least initially. Either way, just a more natural way to activate certain vehicle solutions will be an improvement over what’s available today. The ability to ask the assistant common questions will be the icing on top.
Wake Word
According to Green, the source code hinted at the voice assistant using a wake word, which would replace the need to press the scroll wheel on the steering wheel. Tesla has begun to use the left scroll wheel button for additional things lately such as wiper controls and a multi-function mode, so this may fit in with their plan.
It’s fun to speculate what the wake word would be or whether Tesla would add the ability to create your own. It could be something as simple as ‘Hey, Tesla’, ‘Grok’, or something more humorous as Tesla has a knack for. Unfortunately, there weren't any hints on what the actual wake word would be, but being able to set a destination, play a specific song or ask the assistant for the weather will be a much-needed improvement.
Supported Models
It's not clear which models Tesla would support a voice assistant, but with the release of software v12 with update 2024.14.3, Tesla is starting to leave more features out of older Intel-based vehicles. While a voice assistant may not necessarily be computationally heavy, it may depend on Tesla's implementation and whether voice commands are transcribed on device or carried over the internet for transcription.
Voice Model
In the software, there are references to Microsoft's text-to-speech technology and specifically to a voice named “Jenny Neutral.”
The “Jenny Neutral” voice seems like an acceptable voice, bringing a natural-sounding voice to Tesla's voice assistant, although it doesn't differ much from what you find on other assistants. You can view an example of Microsoft’s “Jenny Neutral” voice in the video below.
Tesla has been more mindful lately about adding information for unreleased features to its software to help prevent leaks, so by the time something like this is found by Green, it usually doesn't take long before it becomes available, although this could also make for an exciting Christmas present.
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Another Tesla update has finished rolling out to the fleet and we once again have a list of undocumented features in this update. Tesla update 2025.2 was the first update of the year and it brought along features such as wiper improvements for the Cybertruck, support for the cabin radar, and third-party charger preconditioning.
However, other changes made it into the release as well but weren’t mentioned in the release notes. If you love following Tesla software changes or just want to be aware of all changes in your vehicle, these will help keep you updated.
Autopilot Warnings
Tesla has now carried over some of the updated warnings from FSD to regular Autopilot.
Warnings such as “Autopilot will not brake” when the accelerator pedal is actively pressed and others will now be presented at the top in a translucent rectangle, instead of near the bottom, where they can be easily missed.
Supercharger Notification
Not a Tesla App
After using a Supercharger, your vehicle will now display a notification with the total cost of the charging session. In addition to the cost, the alert will also display the location, total energy added, and the cost per kW/h.
This is a really nice addition as it brings the price of the charging session front and center when it matters most — as soon as you’re done charging. Previously, you could navigate to Controls > Charging to see the cost of charging.
Recommended Tire Pressure
Not a Tesla App
The Tire Pressure card on the Model 3 and Model Y will now show you the recommended tire pressure in the bottom left corner of the card. It continues to display the tire pressure reading for each wheel.
Service Mode
Max Bracco / X
As usual, Service Mode sees several improvements to make serving your vehicle easier.
Brake Burnishing: The Brake Burnish procedure parameters have been updated to reduce the need for coming to almost a complete stop during each cycle.
Legacy Model S and Model X only.
Charge Port Calibration: The charge port door calibration routine (PROC_CP_X_DOOR-SENSOR-CALIBRATION) and charge port latch calibration route (PROC_CP_X_LATCH-CALIBRATION) have been added to the Charging panel. Those routines are required to be run following the replacement of the charge port or charge port door.
All Model 3s and Model Ys.
Signal Viewer Panel: A new Signal Viewer panel is available to monitor multiple signal values live on a graph. If one or more of the signal values is unavailable, the graph will stop updating. To access the new panel, tap Tools > Signal Viewer.
Noise Recording Panel: To improve the user experience, the recording duration has been decreased to 30 seconds, and reliability of the download routine PROC_ICE_X_FETCH-DIAGNOSTIC-AUDIO-RECORDS has been improved.
Cybertruck only.
Next Update
If you want to read about the official changes in this update, check out our release notes for 2025.2.
Tesla has now started pushing software update 2025.8, but it’s currently only going out to a very small segment of vehicles. It’ll soon go out to more owners in larger waves, but if you’re interested in seeing what’s coming take a look at our 2025.8 update release notes and the undocumented features we’re aware of so far.
Tesla has issued a voluntary recall for all Cybertrucks built to date, for an issue with the Cant Rail - the upper trim piece on the sides of the vehicle that sits above the window glass. This is a pretty big deal that it reveals some key information - in fact, it is the Cybertruck’s first full-blown recall that will impact all vehicles.
The Issue
The Cant Rail, being a thin piece of metal attached to a narrow portion of the vehicle, is currently held down by a single bolt and automotive-grade adhesives. Tesla has noted that the adhesives are becoming brittle due to heat and cold cycles over time, resulting in some vehicles having the trim pieces either break or fall off.
This has been an ongoing issue with the Cybertruck - but was previously considered resolved as the issue mostly went away as Tesla improved their adhesive application.
As of March 20th, Tesla issued a voluntary recall to address the problem after conducting an engineering survey to determine a fix.
Tesla Reveals Number of Cybertrucks Sold
Tesla doesn’t break out Cybertruck sales on their earnings report, instead lumping it into an “Other Models” category that includes Model S, Model X, and Semi sales in addition to the Cybertruck. Since Tesla needs to reveal how many Cybertrucks are affected by this issue, this is our first official glimpse into how many Cybertrucks Tesla has sold.
The recall shows that Tesla has sold 46,096 Cybertrucks to date, which is the number of vehicles recalled. An estimated 1% of vehicles (approximately 460) have the defect, and Tesla has had 151 warranty claims to date in relation to the Cant Rail issue, which have already been remedied. As usual, no fatalities, collisions, or other injuries are related to this issue have been noted.
You can review the recall notice here if you’re interested.
The Fix
The fix to this issue is to fully replace the Cant Rail. That means that Tesla will be removing the existing Cant Rail from the vehicle - which is attached with adhesives - and then replacing it with a new part that uses a new structural adhesive that will not face environmental embrittlement, alongside being reinforced with a nut that will clamp the panel to the vehicle’s structure. Tesla will also weld the panel with an interior stud, solidifying the whole assembly.
Overall, it doesn’t sound like it’ll be a quick and easy fix, but it will be a very solid fix that should make sure that no more of these trim pieces fly off.
Wraps and Coatings
Those who have wrapped, coated, or otherwise treated the surface of their Cybertrucks will be in for a bit of a problem with this particular recall. The existing Cant Rail will be entirely removed from the vehicle, and replaced with a new piece, as mentioned above.
Because of this, the old Cant Rail exterior will no longer be on your vehicle - which includes your wrap or coating. When you go in for this recall, you will need to get the Cant Rails on your vehicle re-wrapped or re-coated, at your own expense.
Tesla is not providing reimbursement at this time for wraps or coatings done by third parties. If Tesla has installed your wrap due to a wrap promotion or through the in-house Tesla Wrap Program, you’ll want to confirm with your local service department if they can source and replace the wrap.
At this time, there’s been no official guidance from Tesla on in-house wraps, but we expect that because this is a recall and the wrap is a service from Tesla. Hopefully, we’ll hear something officially soon.