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Tesla's Elon Musk shares MCU1 retrofit target timeframe, estimates $2k upgrade cost
Elon Musk has provided new details about Tesla’s Media Control Unit (MCU) retrofits for vehicles that are equipped with older infotainment systems. According to the CEO, MCU1 to MCU2 retrofits may start in a few months, though he does not personally recommend it, especially considering its estimated $2,000 cost. Musk has instead suggested that Tesla will release an update to older cars that can optimize the performance of their existing MCUs.
Musk’s recent statements were shared on Twitter while the CEO was interacting with Tesla owners, some of whom owned MCU1-equipped vehicles. The limitations of the older hardware have become more prominent over time, particularly as Tesla rolled out media-heavy features such as the Tesla Theater and the Tesla Arcade. Similar to older hardware in mobile devices, MCU1 vehicles have become slower compared to the company’s newer vehicles like the Raven Model S and X, as well as the Model 3.
Elon Musk has previously stated that MCU1 retrofits would be offered to owners whose vehicles are still equipped with older hardware. The CEO confirmed this following the initial rollout of MCU2 vehicles, and the idea was reiterated after the release of the company’s new Tesla Arcade titles. That being said, a number of Tesla owners have been informed by local service centers that an MCU1 to MCU2 retrofit was not possible.
For the uninitiated, Tesla’s MCU1 is equipped with an Nvidia Tegra 3 processor, which is capable but a tad slower than its newer sibling. Meanwhile, the MCU2 runs on an Intel Atom E800 series chip and comes with a faster browser. The unit also renders videos with sound, giving it the capability of running new features such as the Tesla Theater, which includes video streaming apps such as Netflix and YouTube, as well as video games in Tesla Arcade. All Tesla Model 3s run on MCU 2, as well as Model S and Model X units purchased after March 2018. Customers who bought their Model S and X prior to March 2018 use the MCU1.
Many Tesla owners whose vehicles are equipped with MCU1 have been clamoring for an update to avail of features only enjoyed by those using the newer system. Tesla has not left those on MCU1 in the dark and has rolled out several updates to improve the performance of the older infotainment systems. That being said, the gap between the actual capabilities of Tesla’s MCU1 hardware and its MCU2 features such are growing, and it has pretty much reached the point where the infotainment systems of older vehicles are significantly slower than those in newer cars.
In a way, Elon Musk’s recent statements hint that Tesla’s current priority is the rollout of its Hardware 3, which is essential for its Full Self-Driving initiatives. Retrofits for HW2.5 vehicles have already begun, and HW2 vehicles are expected to follow soon. HW3 is Tesla’s custom-designed computer that replaces the old Nvidia computer used for HW 2.5. As noted by Tesla during its Autonomy Day presentation, Hardware 3 was specifically built to achieve true Full Self-Driving capabilities and can enhance the electric car’s processing capability by as much as 1,000 percent.
Nevertheless, it would be wise for Tesla to start rolling out its MCU1 retrofits for older vehicles, even if it’s later than expected. Considering that Tesla owners have shown a willingness to pay for the retrofit, and the CEO himself has confirmed that the upgrade is possible, it is in both Tesla and its customers’ best interest to make sure the vast majority of its fleet are able to enjoy the best that the company has to offer — even if it’s just for infotainment purposes.
Tesla revealed a major new Cybercab detail in a guide it released for First Responders, showing new territory in its beliefs and intentions for the ride-hailing-focused vehicle that entered production in April.
The First Responders Guide is released to give fire departments, paramedics, and other emergency personnel the proper guidance on what to do in the event of an accident, entrapment, or other situation that would require immediate attention.
On one of the pages of the First Responders Guide, Tesla revealed a stark detail about the Cybercab, which could help personnel enter the vehicle more easily in case of an emergency.
Tesla Cybercab has one important piece that AI4 cars might need for FSD
It shows Tesla has no intention of releasing any Cybercab units that were initially proposed for ride-hailing services for the general public with any manual controls, meaning a steering wheel or pedals:
“A Cybercab equipped with steering wheel, brake pedal, and an acceleration pedal is typically an engineering or test vehicle, and operates at SAE Level 2 autonomy. Cybercab is not typically equipped with a steering wheel or acceleration and brake pedals.”
New official Cybercab documentation from Tesla:
“A Cybercab equipped with steering wheel, brake pedal, and an acceleration pedal is typically an engineering or test vehicle, and operates at SAE Level 2 autonomy. Cybercab is not typically equipped with a steering wheel or… https://t.co/P6ut1mZyzr pic.twitter.com/yq6skl9s2J
— Sawyer Merritt (@SawyerMerritt) June 27, 2026
This is a major development for those who continue to believe Tesla planned to release the Cybercab with any sort of manual controls so that passengers could take over if needed. However, when Tesla started manufacturing production versions of the Cybercab in Giga Texas earlier this year, they were spotted without a steering wheel or pedals.
It essentially confirms the company has no intentions of bringing manual controls to the car’s production versions. Some have argued that the likelihood of Tesla having something
There still are some Cybercab units out there with a steering wheel and pedals, and as Tesla said, these cars are engineering or test vehicles, which have Safety Monitors on board to help the car out of a precarious situation or emergency.
Tesla released the Full Self-Driving v14 ‘Lite’ suite to owners of Hardware 3 or AI3 vehicles today, adding several new features to the vehicles that were once believed to be capable of unsupervised self-driving.
Now, Tesla has released this modified suite to older Tesla vehicles, adding plenty of new features and capabilities.
Here are the full release notes for the suite:
- Distilled the intelligence from HW4 V14 into HW3. This allows HW3 to directly learn how to handle scenarios using HW4 V14 as a guide. This process unlocks the improvements that have been made to HW4 including Reinforcement Learning (RL) and offline models for HW3.
- Improved both proactive and reactive responsiveness across a wide variety of categories including navigation handling, merges and forks, pedestrian interactions, traffic lights, and vehicle cut-in scenarios.
- Improved general comfort in nominal scenarios through fewer false slowdowns, smoother steering and more consistent lane centering.
- Introduced parking, unparking, and reversing capabilities.
- Added Arrival Options for you to select where FSD should park: in a Parking Lot, on the Street, in a Driveway, or at the Curbside.
- Speed Profiles are now available at all times, to further customize driving style preference.
These improvements, according to Tesla’s Head of AI, Ashok Elluswamy, help distill the driving behavior from AI4’s v14 series into both the camera and compute configurations of AI3.
Tesla Full Self-Driving v14 ‘Lite’ for older cars finally gets released
He added:
“It includes destination options and speed profiles on city roads, but more importantly significantly improved safety. We hope you’ll enjoy it, once the build ships wide.”
FSD v14 Lite is now rolling out to AI3 early-access customers. Based on the feedback, will rollout to more customers over the next few weeks.
This build distills the driving behavior from AI4’s v14 series into both the camera and compute config of AI3. It includes destination…
— Ashok Elluswamy (@aelluswamy) June 29, 2026
Tesla will continue to roll out the v14 Lite suite more widely in the coming weeks, the company said.
Tesla has finally released its Full Self-Driving v14 ‘Lite’ suite for older cars that equip the Hardware 3 or AI 3 chip, which have not been able to handle the newest versions of the company’s driver assistance software.
Tesla officially started releasing the v14 Lite suite to owners in the Early Access Program last night. The company’s Head of AI, Ashok Elluswamy, said that the rollout will continue over the next few weeks. The build distills the driving behavior from AI4’s v14 series into both the camera and compute configurations of an AI3 car.
🚨 Tesla is releasing v14 Lite for AI3 owners who are in early-access
This will give AI3 cars the ability to experience new FSD features like parking preferences. https://t.co/pp6Q5FOKoz pic.twitter.com/tqexMB8SVy
— TESLARATI (@Teslarati) June 29, 2026
It also includes a variety of new features that were available to AI4 cars running v14, including:
- Start Self-Driving from Park
- Arrival and Parking Options
- Speed Profiles
The release is highly anticipated because those owners with AI3 vehicles were early adopters into the FSD platform and were promised that their cars would be capable of achieving Full Self-Driving.
However, Tesla CEO Elon Musk admitted during the company’s recent Q1 Earnings Call that these vehicles would not be capable of achieving unsupervised Full Self-Driving, which is what Tesla had originally said.
Owners were not pleased with this answer, or the idea that their commitment to buying the suite outright for thousands of dollars would not yield the ability to drive without operating the car. Tesla gave some solutions for this, including a discount on a new car, or an upgrade to an AI4 or AI5 self-driving computer and new, upgraded cameras.
Tesla owners do not seem pleased with these options, as they require giving the company more money.
Nevertheless, it is important to note that Tesla came through for owners here by releasing v14 Lite before the end of Q2, something it had promised owners during the previous Earnings Call. Tesla has had trouble keeping up with timelines, but this is a big achievement for the team.
Tesla reveals huge Cybercab detail in new guide for First Responders
Tesla Full Self-Driving v14 ‘Lite’ Release Notes: new capabilities and features
