Tesla's MCU 2 will likely not be upgradeable to MCU 3

By Jorge Aguirre
MCU2 compared to MCU 3
MCU2 compared to MCU 3
@greentheonly/Twitter

Tesla hacker and Twitter user @greentheonly has speculated that it won’t be possible to retrofit current MCU 2 (Media Control Unit) Teslas employing Intel chips with the new and improved Ryzen-based processor that is used in MCU 3.

In an up-close inspection of a new Model Y’s internals Green stated that “retrofit for intel cars definitely looks impossible - totally different power and other harness and thickness of the unit.”

The news hasn’t been confirmed nor denied by Tesla or its CEO, Elon Musk, but if proven to be accurate it would most certainly disappoint a great number of MCU2 vehicles owners, who were expecting to be offered the possibility of an upgrade, in the same way current MCU1 owners are able to upgrade their chips for a $2,000 (plus tax) fee.

MCU (Media Control Unit) is the computer controlling Tesla’s touchscreen, processors, RAM (short term memory), non-volatile memory (long-term memory), the audio subsystem, 5 amplifiers, WiFi, Cellular, Bluetooth, GPS, the Ethernet bridge, multiple CAN bus communications, the LIN bus, USB ports and many more.

It handles every software operation, excluding Full Self-Driving/Autopilot, which are unaffected by which MCU version a Tesla is equipped with. All Tesla’s built after November 2016 are capable of Full Self-Driving.

MCU2 came out in the spring of 2018 (fall of 2017 for Model 3) as an upgrade to the NVIDIA’s Tegra 3 processor found in MCU1. All cars delivered after that point benefited from the improved responsiveness and extra features that came with the Intel’s Atom E8000 Series CPU.

From a technical standpoint, the two chips possessed entirely different architectures. The release of software update V10 highlighted the differences, as MCU1 owners were excluded from both Tesla Theater and Tesla Arcade. Effectively, MCU1 doesn’t support Netflix, Hulu, YouTube, or any other streaming services that may be added in the future. It also doesn’t support any of the games Tesla added. Additionally, the web browser on MCU2 is much quicker and more capable as it’s built on Google’s Chromium platform.

In summer of 2021 Tesla released the redesigned Model S with a more powerful infotainment processor MCU. At the time no one was sure whether this was Tesla's next generation MCU or whether it would trickle down to other models.

Then in late 2021 the first news of a new Tesla MCU chip generation started to flood the web, with reports coming from China of a new AMD Ryzen-based computer being present in newly delivered Model Y’s.

The new MCU is faster and brings noticeable improvements in responsiveness in the web browser, as well as while using video streaming services, such as Netflix and YouTube.

Tesla Holiday Update Wishlist - Tesla App Edition

By Karan Singh
@niccruzpatane

So, with Halloween all squared away, the next big holiday coming up is Christmas. Each year, Tesla releases a big Holiday update packed with features. Last year’s update included some awesome features, including alternate routes, the Vision upgrade for Park Assist, Speed Cameras and Traffic Light icons, and the Automatic Blind Spot indicator, among others.

We already know that update 2024.44 - the Holiday Update Branch - is coming with Blind Spot Monitoring while Parked, Supercharger Improvements, and more. But, we’ve got a ton of good ideas that we hope will make the list, so put down your pumpkin spice, and grab your egg nog. It’s the holidays, and it’ll be Cybertruck’s first Christmas, so let’s celebrate!

Apple Watch App

First up—the Apple Watch app. This has been a highly requested feature over the past couple of years, and it looks like Tesla is listening. Tesla has apparently already begun development to support the Apple Watch in app update 4.38, so we’re expecting this to arrive as part of the big Holiday update. We’d love to see an equivalent app for Android-based watches, too.

Phone Left on Charger Alert

It’s easy to forget your phone inside of the vehicle, especially if it’s on the phone dock. A simple app alert that a phone has been left in the vehicle would be really useful. Tesla could potentially even tell the difference between a driver’s phone and a passenger’s phone, depending on the vehicle’s profile being used or which doors were open and closed.

Either way, just receiving an app notification if a phone is left in the car would be really useful, especially since your phone is your car key.

Light Show Support

Tesla Lightshows are great, but they could be made even better with Tesla app support. At the very least, it’d be great to be able to start/schedule or stop a light show from the app.

To really make light shows shine, Tesla could add the ability to create a light show directly from the app. Right now creating a light show involves using the open-source app xLights on a computer, so a simplified version of it running in the app would make it accessible to a lot more users.

<blockquote class="twitter-tweet" data-media-max-width="560"><p lang="en" dir="ltr">Perform a synchronized light show with multiple Tesla vehicles…and a new song 🎶<br><br>Rolling out now in this year’s holiday update <a href="https://t.co/XqBUy5GxhN">pic.twitter.com/XqBUy5GxhN</a></p>— Tesla (@Tesla) <a href="https://twitter.com/Tesla/status/1737904802820919387?ref_src=twsrc%5Etfw">December 21, 2023</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

Precondition Battery Button

Similar to an in-vehicle preconditioning button for 3rd party chargers, the Tesla App should also have a button to precondition the battery. This will make it easy for users, especially those who don’t have home charging – to get their vehicles ready for DC Fast Charging before departing.

Garage Door Controls

Tesla owners with HomeLink can control their garage doors directly from the vehicle. However, the Tesla app currently only allows users to open the first programmed garage door and doesn’t give the user access to any of the other programmed doors. Adding the option to choose which garage door to open via the HomeLink button would be a valuable addition—especially useful when paired with Actually Smart Summon.

Drive Stats

While Tesla already records and displays charging sessions in the app’s Charge Stats section, it’d be really helpful if Tesla also added the ability to record drives. That way, you could easily track how much your vehicle was driven on a particular day, week, or over the course of the year.

If you have any other suggestions, let us know in our forums. Who knows, some Tesla product managers may even be listening.

Tesla Adds Interest-Free Payment Plan to Tesla Shop - FSD Payment Plan Next?

By Karan Singh
Not a Tesla App

Tesla has added payment plan options to its shop items for the first time. They’ve partnered with Klarna, a deferred payment provider, to spread the cost of items across multiple payments. For now, this appears to be limited to the Tesla Shop in the United States—no support for other regions quite yet.

Payment Options

Klarna’s primary payment option allows buyers to get 0% APR for 6 weeks, with 4 payments. The payment schedule is essentially one payment every two weeks for whichever product you buy - enabling you to buy now, and pay later with 0% financing.

For example, the payment schedule for the $420 Wall Connector is evenly divided into four portions. Of course, you’d also have to pay for shipping and taxes, both of which will be included in your first payment.

Payment 1

Payment 2

Payment 3

Payment 4

Amount

$105

$105

$105

$105

Payment Due

Day of Purchase

Week 2

Week 4

Week 6

For some of Tesla’s more expensive Shop options - like the Cybertent, this could be a fantastic means for some owners to pick up something more expensive without having to worry about interest charges on their credit card.

Klarna also offers some other payment schedules, which do have interest. While these are far more expensive and are more like credit cards, they still provide buyers a means to buy now and pay over time. These are all open loans as well, so you can pay them down at a faster rate, thereby reducing the overall interest.

Payment Schedule

Payment Rate

Interest Rate

6 Weeks

Biweekly

0%

6 Months

Monthly

7.99% to 33.99%

12 Months

Monthly

7.99% to 33.99%

FSD Payment Options?

We’d love to see an equivalent payment option available for Tesla’s FSD purchase, which is currently $8,000, even if it's bought after the vehicle purchase. The high upfront cost is likely one reason why Tesla’s FSD subscription is so popular.

It’s likely that purchasing FSD is much more popular at the time of vehicle purchase, as owners can roll the cost of FSD into their financing rather than paying the full $8,000 later on.

IPO Filing

Interestingly enough, along with today’s news that Klarna is working with Tesla, Klarna has also filed for an IPO in the United States. It is one of the first financial tech (FinTech) companies to file for an IPO in 2025 and, interestingly, one of the first European companies to conduct an IPO in the United States.

For those who trade in the financial sector, this will be one to watch—Klarna was valued at around $46 billion in 2021 and is now valued at approximately $15 billion. Partnering with a large and well-known brand like Tesla could uplift Klarna, but that’s all financial speculation.

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