True to their word, Tesla has finally launched FSD V12.6 on the 30th of December, squeaking in under the promised timeline before the end of the year. FSD V12.6 for HW3 vehicles is software update 2024.45.25.10, and the release notes reveal several interesting things about the update, but it was mostly what we expected — which is a good thing.
We expected FSD V12.6 to include End to End for highway driving, improved city streets behavior and potentially some features from FSD V13, and that’s exactly what happened.
According to Ashok Elluswamy, Tesla’s VP of AI, Tesla has also pulled in some improvements from V13 into this V12.6 release. This release has started rolling out to some Model S and Model X vehicles, but not the Model 3 and Model Y. Ashok says that it should become available for those models within a week.
FSD V12.6
V12.6 is supposed to be a big update for Hardware 3 vehicles and is part of Tesla’s commitment to continuing to support older vehicles. Let’s break down the release notes and talk about what’s new and what came from FSD V13.
End-to-End on Highway
The new end-to-end highway stack has finally arrived for HW3 vehicles. The new highway stack should mean better decision-making on the freeway. Up until now, HW3 vehicles have been using FSD V11’s stack for highway driving.
When End-to-End was introduced on city streets, it brought drastic improvements in how FSD was handled between V11.4.9 and V12.3.6. HW3 owners will hopefully see similar improvements in how the vehicle behaves on the highway.
Improved City Streets Behavior
As part of the update, Tesla has honed in on some of the issues with behavior on city streets, which should address the false green light braking and other issues that have been prevalent in current FSD V12 builds. That’ll be a big improvement, as it has become one of the sticking points for V12.
Speed Profiles
The updated speed profiles, including Hurry Mode, have now arrived. For now, the speed profiles are restricted to roads with a 50mph (80km/h) minimum speed limit, which was the same limit HW4 vehicles saw on FSD V12.5. Here is the breakdown of the new speed profiles:
Chill will drive in slower lanes, with minimal lane changes, and more strictly adhere to the speed limit. The minimal lane changes button has been removed, so if you want to have minimal lane changes, switch your profile to chill.
Standard is the new Average. It will drive at a normal speed, keeping pace and adjusting in accordance with traffic. It will dynamically adjust based on how fast traffic is moving based on Max Speed, and will make lane changes to stay at or around the speed of traffic.
Hurry replaces Assertive and will drive faster while also making more frequent lane changes to stay at or above the speed limit. It is fairly aggressive with its lane changes and looks for opportunities to get ahead or cut through the flow of traffic.
Earlier & More Natural Lane Change Decisions
This is going to be one of the most noticeable changes for HW3 users. FSD has always struggled with lane selection, especially in advance of an upcoming turn or exit. Tesla has put in a lot of work in previous FSD V12 versions - namely V12.5 and its offshoots, and these improvements should translate over to FSD V12.6 just as well.
We’re hoping to see considerably improved performance on V12.6 due to this particular set of changes.
Redesigned Controller (FSD V13)
The redesigned controller is a big change - and actually was brought down from FSD V13. The controller is what tracks your own vehicle, as well as other vehicles and objects around the vehicle. Smoother and more accurate tracking for the controller means that FSD will be able to make better decisions, resulting in higher confidence and smoother driving.
Autospeed is now gone, and is now replaced with Max Speed Offset. Tesla recommends the Max Speed Offset be set to 40%. You’ll instead be able to use the FSD Driver Profiles to better control vehicle speed. Chill will keep you at or below the speed limit, while Average will keep you around the speed limit. Hurry does what it sounds like and will speed up, if possible, up to that Max Speed Offset.
The minimum and maximum offsets are 40%, so if the limit is 50mph, your FSD speed limit will be up to 70 mph, while at -40%, it could travel as slow as 30 mph.
When Does It Arrive?
The update was available to employees early yesterday, and it later went out in an extremely limited fashion to some non-employees last night. Right now, it’s also limited to Model S and Model X vehicles with HW3. We should hopefully see a roll out to additional Model S/X cars in the coming days, but Ashok has already stated that it’ll be about a week before it’s available for other models.
That means that the majority of Model 3/Y owners with HW3 will likely have to wait at least a couple of weeks before receiving the update. We’re looking forward to seeing the first few drives and reviews of FSD V12.6.
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Another quarter has passed, and that means it’s time to submit questions and vote for Tesla’s Q2 2025 Earnings Call. While Q1 was a tough quarter for the company, Q2 saw some recovery in sales, although there’s still some work to be done.
However, there’s always a lot to be excited about during Tesla’s Q&A session, where we usually learn a lot about future software improvements and upcoming vehicles. We may hear more about FSD Unsupervised, Robotaxi, or the more affordable vehicle, or its upcoming larger 6-seater Model Y, the Model Y L. Tesla also mentioned a potential FSD price hike back in the Q1 2025 Earnings Call, so that could be something that is brought up as well.
Tesla’s Q2 So Far
Tesla has already released their Q2 2025 Production and Delivery numbers, which were up from Q1 of this year, but still down compared to Q2 last year.
Production
Deliveries
Model 3/Y
396,835
373,728
Model S, X, and Cybertruck
13,409
10,394
Total
410,244
384,122
How to Submit & Vote
Tesla lets shareholders submit a question that will be voted on and may be answered during the Q&A session. To submit your own question or vote on an already submitted question, you’ll need to be a verified shareholder. You can go to Say’s platform and link your brokerage accounts.
Once it is verified, you’ll be able to log in and vote your shares on your own question, or on someone else’s question.
Here’s the link to get started on Say’s Tesla Q&A. You must submit your questions and votes by July 23rd, 2025, at 4:00 PM EDT.
Top Questions So Far
Unsurprisingly, people have already been submitting questions, and here are the top ones so far.
Can you give us some insight how robotaxis have been performing so far and what rate you expect to expand in terms of vehicles, geofence, cities, and supervisors?
What are the key technical and regulatory hurdles still remaining for unsupervised FSD to be available for personal use? Timeline?
What specific factory tasks is Optimus currently performing, and what is the expected timeline for scaling production to enable external sales? How does Tesla envision Optimus contributing to revenue in the next 2–3 years?
Can you provide an update on the development and production timeline for Tesla’s more affordable models? How will these models balance cost reduction with profitability, and what impact do you expect on demand in the current economic climate?
Are there any news for HW3 users getting retrofits or upgrades? Will they get HW4 or some future version of HW5?
When do you anticipate customer vehicles to receive unsupervised FSD?
And here are some other ones we found interesting:
Have any meaningful Optimus milestones changed for this year or next and will thousands of Optimus be performing tasks in Tesla factories by year end?
Are front bumper cameras going to be necessary for unsupervised full self driving? If so, what is the companies plan to retrofit vehicles that do not have them?
Will there be a new AI day to explain the advancements the Autopilot, Optimus, and Dojo/chip teams have made over the past several years. We still do not know much about the HW4.
Earnings Call Details
Tesla will hold its earnings call on Wednesday, July 23rd, at 4:00 PM EDT. It's still early for an access link, but we’ll make sure we have a link up on the site before the earnings call that day.
If you do miss the earnings call, no worries. We will provide a full recap following the call, and we’ll also do some in-depth dives into what was said and what we know.
Tesla’s Summer Update, 2025.26, has finally launched, bringing with it a batch of interesting new features for some, and a bunch of quality-of-life improvements for everyone else.
Grok AI Assistant
The star of the Summer Update is Grok, xAI’s conversational AI assistant, which has now landed in Tesla vehicles. For now, it's available in any Tesla that has an AMD processor and is potentially coming to Intel-based vehicles in the near future. The feature is also only available in the U.S., but it’s expected to expand to other regions — hopefully soon.
Grok is in its first iteration as an in-vehicle assistant, and for now, cannot control the vehicle, which means that Tesla’s voice command system is still intact. However, there is a lot it can do already. Grok is activated by pressing and holding the voice button (right scroll wheel on older vehicles), while a short press of the button is still reserved for voice commands. Grok will support a wake word in the future, letting you activate it without pressing a button.
You don't need to sign into Grok to use it in your Tesla!
It can't currently control anything in the car, but it does seem context aware that it is in a vehicle. pic.twitter.com/IpatR7sjiJ
Once Grok is open, which can also be done by tapping the Grok app icon, users can tailor the AI personality according to their preferences by selecting a persona and voice of their choice.
There are also several other settings for Grok under the settings button. You can enable NSFW mode, Kids Mode, or disable access to your vehicle’s location.
Grok has contextual awareness of your vehicle location, which means it can provide relevant answers to questions like “Where should I go for dinner?”
Logging In Not Required
Grok is free with Premium Connectivity, or if you’re using your phone’s hotspot feature or connected to WiFi, so anyone can try it for free. In fact, you don’t even need to log in to start using Grok. However, logging in adds some additional features.
If you’d like to log in, you can do so by scanning the QR code in the vehicle, which will provide chat management and transcripts, SuperGrok access (if you pay for a subscription), and better privacy control.
Tesla has added a new Light Sync feature that pulses the vehicle’s ambient lighting in sync with the music being played. This option is turned on under Toybox > Light Sync. There are also a few options, including the ability to match the ambient light colors to the album’s artwork, instead of using your selected color.
In addition, in Park you can enable Rave Cave when parked, which cranks up the ambient lighting brightness to the maximum.
Dashcam App Update
The Dashcam app now allows you to adjust playback speeds, just like the older Dashcam Viewer, which is still used on Intel-based vehicles.
In addition to adjusting playback speed, you can now adjust the video view so that it’s displayed without being obstructed by the buttons at the top (video below). The difference is small, but could be useful if you’re trying to see something slightly out of view or that’s hidden behind the top Dashcam buttons.
While the Cybertruck has also received the updated Dashcam Viewer with this update, it does not have the new B-pillar camera recordings like other HW4 cars.
Sentry Mode is getting one of the best uses of the vehicle’s ambient lighting that we’ve seen so far. The ambient lighting will now slowly pulse red while Sentry Mode is activated to grab someone’s attention, instead of just relying on the vehicle’s display.
While you can disable Sentry Mode sounds, we’d love to see an even more stealthy Sentry Mode that also disables the ambient lighting and screen, allowing the vehicle to record without anyone being aware.
Since the ambient lighting is being used in this case to make people more aware of a feature, Tesla could also use it in other modes, such as Dog Mode.
There are a lot of potential uses for ambient lighting. Tesla can make it glow while the vehicle is charging, with the brightness potentially related to the vehicle's charge level.
When you navigate to a Supercharger, new icons in the charger list will indicate locations that require valet service or pay-to-park access.
Upon arrival at the location, a notification will appear on your screen, displaying important details such as access codes, parking restrictions, level/floor information for parking garages, and restroom availability. This information will also be available on the site card in the navigation.
Equalizer Presets
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Tesla has moved the audio settings from the music player, directly into the vehicle settings — making them much easier to find. In addition to creating a new “Audio” section in settings, you can now create and save equalizer presets.
Each preset can have a name, custom EQ settings, and a setting for immersive audio.
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Onboarding Guide
Not a Tesla App
Tesla has introduced a new Onboarding Guide for new owners. The guide covers driver settings, touchscreen use, steering wheel and seat setup, and how to control key portions of the vehicle, including lights, wipers, and Autopilot features.
The Onboarding Guide is automatically initiated when a new owner accepts delivery of a Tesla, or can be manually initiated at any time by going to Controls > Service > Onboarding Guide.
This appears to only be available for the new Model 3 and new Model Y.
In typical Tesla fashion, this 2025.26 update is rolling out gradually in small waves initially. Three waves have already gone out, so all signs are looking good for it going into a wide release soon.
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