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Tesla gives update for early FSD adopters with legacy Model S, Model X vehicles
Longtime Tesla FSD adopters with legacy vehicles recently received an update from the electric car maker. The update sheds some light on what is waiting for customers who purchased FSD and are still driving legacy Model S and Model X vehicles today.
Tesla functions like a tech company, so it is no surprise that it has moved very fast over the years. This means that constant improvements to its vehicles’ hardware are being implemented as soon as they are ready. This also means, however, that the latest updates to systems like FSD (Supervised) or Autopilot are mostly focused on vehicles that represent the majority of the company’s fleet.
This was highlighted by Elon Musk in a recent post on X, when he noted that while Tesla’s Hardware 4 will ultimately be better, all training that the company is doing right now is for Hardware 3 vehicles. Hardware 4 is just running on emulation mode.
Within Tesla’s pursuit of autonomous driving lies a group of Model S and Model X owners who bought into FSD even before the Model 3 was ramped. These owners were promised that their vehicles would have the necessary hardware to be self-driving one day, but they have not received much of Tesla’s Autopilot and FSD improvements to date. Granted, Tesla has launched a hardware upgrade program for legacy vehicles, but they are paid options that some owners have refused.
It was then no surprise that amidst the excitement for FSD (Supervised), some legacy Model S and Model X owners have expressed their frustration at being left out again. Among these is Anthony Spina, who noted in a post on X, that “all of us legacy S/X owners still haven’t received V12 yet, with no official communication stating whether or not we even will. MCU1 FSD S/X owners have been living in the dark on this for years, and now MCU2 owners are beginning to be lumped into this group as well, at least it would seem on the surface.”
Thanks @Speenuh and others who have posted on @X about this. While we normally prioritize our paid FSD customers to the extent possible, there is a group of S/X customers (~3% of total FSD eligible vehicles) who have a different hardware which the @Tesla_AI team is working to… https://t.co/W3l3SYlVZu— Rohan Patel (@rohanspatel) March 31, 2024
In a response on X, Tesla Vice President of Public Policy and Business Development Rohan Patel explained that the electric vehicle maker is putting a lot of efforts into releasing systems like FSD (Supervised) to older vehicles. The executive noted that Tesla cannot give a timeline as to when FSD would be released to older vehicles, but the company’s AI team is working on it.
“Thanks @Speenuh and others who have posted on @X about this. While we normally prioritize our paid FSD customers to the extent possible, there is a group of S/X customers (~3% of total FSD eligible vehicles) who have a different hardware which the @Tesla_AI team is working to validate. We have a rigorous safety validation cycle for every software update, and we are working as hard as possible to ship the latest builds to all customers. We don’t want to give false precision on timing until the validation can be completed, but want you to know we are focused on trying to solve this. Many of you have been with us on the FSD journey from the start and it’s super appreciated,” Patel wrote.
We ? get it and understand and sincerely appreciate the patience. Our software engineers and validation teams really are doing all they can to try and solve even on Easter Sunday.— Rohan Patel (@rohanspatel) March 31, 2024
In a follow-up post, the Tesla executive also noted that the company understands the frustration of its legacy customers. “We 100% get it and understand and sincerely appreciate the patience. Our software engineers and validation teams really are doing all they can to try and solve even on Easter Sunday,” the executive noted.
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Tesla already has a complete Robotaxi model, and it doesn’t depend on passenger count
That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.
Tesla already has the pieces in place for a full Robotaxi service that works regardless of passenger count, even if the backbone of the program is a small autonomous two-seater.
That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.
Two-seat Cybercabs make perfect sense
During the Q&A portion of the call, Tesla Vice President of Vehicle Engineering Lars Moravy pointed out that more than 90% of vehicle miles traveled today involve two or fewer passengers. This, the executive noted, directly informed the design of the Cybercab.
“Autonomy and Cybercab are going to change the global market size and mix quite significantly. I think that’s quite obvious. General transportation is going to be better served by autonomy as it will be safer and cheaper. Over 90% of vehicle miles traveled are with two or fewer passengers now. This is why we designed Cybercab that way,” Moravy said.
Elon Musk expanded on the point, emphasizing that there is no fallback for Tesla’s bet on the Cybercab’s autonomous design. He reiterated that the autonomous two seater’s production is expected to start in April and noted that, over time, Tesla expects to produce far more Cybercabs than all of its other vehicles combined.
“Just to add to what Lars said there. The point that Lars made, which is that 90% of miles driven are with one or two passengers or one or two occupants, essentially, is a very important one… So this is clearly, there’s no fallback mechanism here. It’s like this car either drives itself or it does not drive… We would expect over time to make far more CyberCabs than all of our other vehicles combined. Given that 90% of distance driven or distance being distance traveled exactly, no longer driving, is one or two people,” Musk said.
Tesla’s robotaxi lineup is already here
The more interesting takeaway from the Q4 and FY 2025 earnings call is the fact that Tesla does not need the Cybercab to serve every possible passenger scenario, simply because the company already has a functional Robotaxi model that scales by vehicle type.
The Cybercab will handle the bulk of the Robotaxi network’s trips, but for groups that need three or four seats, the Model Y fills that role. For higher-end or larger-family use cases, the extended-wheelbase Model Y L could cover five or six occupants, provided that Elon Musk greenlights the vehicle for North America. And for even larger groups or commercial transport, Tesla has already unveiled the Robovan, which could seat over ten people.
Rather than forcing one vehicle to satisfy every use case, Tesla’s approach mirrors how transportation works today. Different vehicles will be used for different needs, while unifying everything under a single autonomous software and fleet platform.
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Tesla Cybercab spotted with interesting charging solution, stimulating discussion
The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.
Tesla Cybercab units are being tested publicly on roads throughout various areas of the United States, and a recent sighting of the vehicle’s charging port has certainly stimulated some discussions throughout the community.
The Cybercab is geared toward being a fully-autonomous vehicle, void of a steering wheel or pedals, only operating with the use of the Full Self-Driving suite. Everything from the driving itself to the charging to the cleaning is intended to be operated autonomously.
But a recent sighting of the vehicle has incited some speculation as to whether the vehicle might have some manual features, which would make sense, but let’s take a look:
🚨 Tesla Cybercab charging port is in the rear of the vehicle!
Here’s a great look at plugging it in!!
— TESLARATI (@Teslarati) January 29, 2026
The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.
Now, it is important to remember these are prototype vehicles, and not the final product. Additionally, Tesla has said it plans to introduce wireless induction charging in the future, but it is not currently available, so these units need to have some ability to charge.
However, there are some arguments for a charging system like this, especially as the operation of the Cybercab begins after production starts, which is scheduled for April.
Wireless for Operation, Wired for Downtime
It seems ideal to use induction charging when the Cybercab is in operation. As it is for most Tesla owners taking roadtrips, Supercharging stops are only a few minutes long for the most part.
The Cybercab would benefit from more frequent Supercharging stops in between rides while it is operating a ride-sharing program.
Tesla wireless charging patent revealed ahead of Robotaxi unveiling event
However, when the vehicle rolls back to its hub for cleaning and maintenance, standard charging, where it is plugged into a charger of some kind, seems more ideal.
In the 45-minutes that the car is being cleaned and is having maintenance, it could be fully charged and ready for another full shift of rides, grabbing a few miles of range with induction charging when it’s out and about.
Induction Charging Challenges
Induction charging is still something that presents many challenges for companies that use it for anything, including things as trivial as charging cell phones.
While it is convenient, a lot of the charge is lost during heat transfer, which is something that is common with wireless charging solutions. Even in Teslas, the wireless charging mat present in its vehicles has been a common complaint among owners, so much so that the company recently included a feature to turn them off.
Production Timing and Potential Challenges
With Tesla planning to begin Cybercab production in April, the real challenge with the induction charging is whether the company can develop an effective wireless apparatus in that short time frame.
It has been in development for several years, but solving the issue with heat and energy loss is something that is not an easy task.
In the short-term, Tesla could utilize this port for normal Supercharging operation on the Cybercab. Eventually, it could be phased out as induction charging proves to be a more effective and convenient option.
News
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.