On Sunday, Tesla started rolling out Full Self-Driving (Supervised) V12.3.6, the latest version of its FSD software. This update includes the highly anticipated new Autopark and High Fidelity Park Assist feature for additional vehicles. FSD v12.3.6 replaces v12.3.5 which had only been rolled out to a small portion of the fleet.
The new Autopark (tap to park) and High Fidelity Park Assist features are now available for vehicles with ultrasonic sensors (USS). Since October 2022, all Model 3 and Model Y vehicles no longer include ultrasonic sensors, instead relying solely on Tesla Vision to provide Autopilot, Park Assist, and Autopark features. However, the vision-based Autopark has been limited to the U.S. and Canada so far.
New Autopark
When driving at low speed, the new Autopark highlights potential parking spaces allowing the driver to pick their preferred spot. Tesla vehicles with ultrasonic sensors (USS) can now take advantage of the new Autopark feature, which is a significant improvement over the previous iteration.
Although the new Autopark feature is expanding to vehicles with USS, it appears to still be geographically limited to the U.S. and Canada. We expect Tesla to continue the feedback loop and release the feature in Europe and other regions in a future update.
Vehicles without USS outside of North America have never had Autopark of any form since they don’t support the older Autopark version that relies on USS and have yet to receive this latest revision of the feature.
For vehicles with the Intel-based infotainment unit, the visuals will look like the video below, where it doesn’t display a 3D environment of the vehicle’s surroundings. Instead, the visualization just highlights parking spaces available. However, the limitation for Intel vehicles is just in the visualization itself, the vehicle is just as aware of its surroundings as vehicles that display 3D renderings of objects on the screen.
With Tesla update 2024.3.25 (FSD v12.3.6), Tesla is also releasing High Fidelity Park Assist features to vehicles with ultrasonic sensors. However, as initially suspected, it’s limited to vehicles with the most recent infotainment processor that includes the Ryzen chip (MCU 3). Unfortunately, Intel Atom based vehicles don’t include the 3D visuals of High Fidelity Park Assist.
The feature provides drivers with a 360-degree 3D reconstruction of their vehicles’ surroundings while parking while traveling at low speeds. It even accurately displays lane markers in parking lots helping drivers visualize the environment around them when parking. The feature was added as a late addition to Tesla’s 2023 holiday update. However, at the time, it was limited to vehicles without ultrasonic sensors (USS).
For vehicles that have ultrasonic sensors, users will have a choice to either continue using their vehicle with USS sensors that display exact distances to objects or use the new High Fidelity Park Assist feature and forego the display of distances.
We were hoping that when Tesla finally released HiFi Park Assist to vehicles with USS, it would merge the two features and display the updated visuals with distance measurements, however, that is not the case in this update.
For owners with USS, the new Park Assist option is located under Controls > Autopilot and allows you to choose between “Standard” or “Tesla Vision.” Tesla Vision being the new HiFi Park Assist and Standard representing the USS version with arcs and measurements.
Tesla’s director of Autopilot, Ashok Elluswamy had previously set expectations and stated that HiFi Park Assist would “eventually” go to vehicles with ultrasonic sensors back in December 2023. The new Park Assist feature is available in various regions around the world, including North America and most of Europe.
Tesla continues to double down on vision and Musk revealed that it's becoming “very clear that the vision-based approach with end-to-end neural networks is the right solution for scalable autonomy”.
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In a new video posted to X, Tesla is showing the progress of its first Lithium Iron Phosphate (LFP) cell manufacturing factory in North America. The facility, located in Sparks, Nevada, will be used to produce LFP battery cells for Megapacks and Powerwall.
However, the implications of this new factory extend beyond Tesla Energy. By on-shoring the production of these cost-effective batteries, Tesla is not only securing its energy supply chain but also opening the door to potentially reintroducing LFP-based vehicles in North America.
Nearing completion of our first LFP cell manufacturing factory in North America pic.twitter.com/OLNRWajz4l
The immediate beneficiary of the new Nevada LFP facility is Tesla’s Energy division. LFP chemistry is ideal for stationary storage products like Megapack and Powerwall. It offers a very long life cycle, is extremely thermally stable and safe, and is significantly cheaper to produce than nickel-based batteries, partly because it contains no cobalt.
Until now, Tesla has relied on suppliers like CATL in China for these cells. A dedicated, domestic supply will enable Tesla to dramatically ramp up Megapack production to meet North America’s increasing demand for grid-scale energy. On the other hand, Megafactory Shanghai continues to utilize CATL’s LFP batteries and will support the rest of the world.
Tesla first revealed that they were planning to onshore LFP production in North America at the Q1 2025 Earnings Call, which will help them avoid costs, innovate in new technology, and insulate themselves from geopolitical supply chain risks.
A Potential Return for LFP Vehicles?
Another exciting application for Tesla is what this new factory means for Tesla’s budget-oriented lineup. For years, Tesla has been constrained in its ability to offer LFP-based vehicles in North America. While LFP packs are used in other markets for specific standard-range RWD vehicles, tariffs on important Chinese cells made it difficult to import these cells for use in North America.
With a domestic supply of LFP cells produced in Nevada, this tariff-related barrier will be mostly eliminated, pending the sourcing of lithium from a North American site. This is likely to lead to the reintroduction of LFP-based vehicles to the North American market, possibly in late 2026 or 2027.
An American-made LFP pack could lead to a more affordable base Model 3 or Model Y, or potentially help Tesla cut costs on the next-generation Affordable Model even further. This helps to give customers a lower-cost entry point without sacrificing a lot of range, and with the added benefit of being able to regularly charge to 100%.
Mega Nevada
With Mega Nevada now progressing well, Tesla is in an excellent position to continue iterating on its vertical integration and scaling Megapack and Powerwall—two of Tesla’s fastest-growing businesses—further. There are tons of benefits for consumers in the future as Tesla continues down this path, with more affordable Powerwalls for the home, cheaper electricity prices thanks to grid-forming Megapacks, and cheaper LFP vehicles.
The next major upgrade for Tesla’s in-car experience is pretty much already here - just hiding beneath the surface, awaiting the flick of a switch. According to new details uncovered by Tesla hacker Greentheonly, a fully functional version of the Grok conversational AI assistant is already present in recent firmware builds, just waiting for Tesla to activate it.
The feature, which is currently behind a server-side switch, could be enabled at any time by Tesla for vehicles running update 2025.20 and newer. The findings provide a better picture of what we already learned from Green’s breakdown on Grok last month.
Grok’s Requirements
@greentheonly on X
According to what Green determined from the latest software builds, the foundation for Grok was laid with update 2025.14, with more abilities and functionality added in 2025.20 to flesh it out. He also determined exactly which vehicles will be receiving Grok.
In terms of hardware, any vehicle with a Ryzen-based infotainment computer will receive Grok. This means that vehicles with the older Intel Atom processor will not be supported, at least initially. The underlying Autopilot hardware is not a factor, as Grok’s processing is not done in-vehicle.
Grok will also require premium connectivity or a Wi-Fi connection for the vehicle. At this point, we’re not sure whether Grok in your Tesla will also require you to sign up for SuperGrok, X Premium, or X Premium+, but Tesla is requiring you to sign into your Grok account. It’s just not clear whether the free version of Grok will work, or if you’ll need the premium version.
Grok User Experience
@greentheonly on X
Green also revealed the user interface for Grok for the first time. You’ll find many of the same features from the Grok app, but surprisingly, it looks like it’ll have a dark UI, even if you’re using light mode in your vehicle.
It appears that there will be a Grok app, likely for settings. However, Grok will largely operate in a modal, similar to voice commands, which are displayed near the bottom left corner of the screen.
There’s an on-screen microphone button, as well as drop-down menus for the voice and type of assistant you’d like to use.
Similar to the Grok app currently on mobile devices, you’ll be able to select from a set of voices and then define their personality. The available voices for now are the standard Ara (Upbeat Female), Rex (Calm Male), and Gork (Lazy Male).
There’s also a settings button, which, when expanded, allows you to enable or disable NSFW mode (including swearing and adult topics), as well as a Kids Mode, which will tone Grok down to be suitable for when kids are in the car.
@greentheonly on X
How Grok Will Work (Button / Wake Word)
Users will be able to activate Grok by pressing a button, likely the same one that activates voice commands today. Grok will then remain enabled for the duration of your conversation, allowing you to go back and forth, asking and answering questions. To end your conversation, you’ll press the mic button again.
While it doesn’t appear to use a wake word yet, Green says that some code refers to a wake word, so it’s possible that this could be an option Tesla plans to activate in the future.
Replacing Voice Commands
The most significant implication of Grok’s future integration is in its potential to fully replace the existing and relatively rigid voice command system. Green notes that internally, this feature is part of the car assist module, and that eventually, the plan is for Grok to take over car control functions.
Unlike the current system, which requires specific phrases, a true conversational AI like Grok can understand natural language. This will enable more intuitive requests, completely changing how drivers interact with their car.
Language Support
@Greentheonly/X
Grok will also launch with multi-language support, similar to its current abilities in the Grok app. Green says that it already appears to have support for English and Chinese and one or two other languages.
Release Date
Grok appears ready to go from a vehicle standpoint, but Green wasn’t able to actually test it out. While development appears to be nearly complete in the vehicle, Tesla and xAI may still be working on some server-side changes to better integrate with the vehicle. If they plan for Grok to replace voice commands on day one, then it’ll need to be trained and be able to execute a variety of vehicle commands.
It’s possible Tesla is actively testing Grok or adding server-side changes to replace voice commands. However, it looks like vehicle development is nearly complete and Grok could launch as soon as the next major Tesla update, which is expected to be update 2025.24.
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