A few weeks ago, we reported that Tesla will deliver its first HW4 vehicles without the suspected additional cameras. Shortly after, Twitter user Kilowatts ventured into one of Tesla’s vehicle lots and was able to snap photos of some of the first Teslas with hardware 4.0.
Delivery of HW4 Model X
A poster on Reddit shared pictures and video of his 2023 Model X delivery, showcasing hardware 4.0. According to their post, the vehicle was built on February 25th and delivered March 5th, a mere 10 days after being built.
Software Still a Work In Progress
Teslas with hardware 4.0 are missing visualizations, TACC and Autopilot right now
jasondclinton/Reddit
However, several features on his vehicle are currently unavailable as Tesla appears to still be developing and testing software for HW4. These features include almost everything that utilizes the vehicle's cameras, including Autopilot and Traffic Aware Cruise Control (TACC). Full Self-Driving Beta (FSD Beta) is also disabled.
The visualizations on-screen are also absent, the vehicle displays almost no visualizations of any kind. According to the author of the post, only road markings are visible.
The vehicle does not show any details confirming it has HW4 in any of the usual places such as the software tab, in the 'additional vehicle information' dialog, or in Tesla's Service menu. However, the owner says that Tesla themselves confirmed that the vehicle is equipped with Tesla's latest FSD hardware and the author's photos confirm the presence of the new cameras.
HW4 Timeline for Other Teslas
While Tesla continues to work on the software for HW4, we’re anticipating the Model 3 and Model Y vehicles to follow with HW4 deliveries at some point this year. Tesla’s “Project Highland” is making way, but Tesla may add hardware 4.0 to the Cybertruck first, as the new hardware may be constrained due to ramping production.
Retrofits for HW4
Tesla CEO Elon Musk has said that HW4 will not be available for retrofits. He’s said that as long as HW3 remains safer than a human then there’s no need for an upgrade. The entire computer has been rebuilt and rearranged, making it much more difficult to pop it into HW3 vehicles.
After Greentheonly’s leak about HW4 last month, Munro Live shared an in-depth video explaining every detail of HW4 and what to expect. Additionally, they went over why retrofits are not feasible.
Update
Update: The owner, Jason has updated their Reddit post to provide an update on some of the missing ADAS features. He noticed that his rear camera was failing and that he could reset it in Tesla's Service Mode.
Resetting the camera would bring it back online, however, it crashes again just minutes later. Jason was able to have the camera online long enough to confirm that Autopilot was available if the camera was working. However, as soon as it crashes, Autopilot and other features would go offline, even if they didn't completely depend on the rear camera.
For example, visualizations would appear, but as the rear camera crashed, they would completely disappear, even if the objects that were in front of the car.
Jason said that Navigate on Autopilot, TACC and visualizations appeared to be available while the rear camera was online, but it wasn't clear whether all features were available such as AutoPark, Summon and FSD Beta.
This appears to be a software-related issue, but it's not clear at this time whether it's affecting everyone with hardware 4.0 or if it's limited to some vehicles.
Update 2
Update 2: The vehicle in question has now received another software update, version 2023.201, which contains "bug fixes."
This update has fixed the issue with the rear camera and the vehicle has regained access to Autopilot, TACC, vehicle visualizations and other features, although AutoPark and FSD Beta are still unavailable. This update addresses the larger concerns and reestablishes the major features of the vehicle, however, we hope the additional functionality is restored soon.
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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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