When the refreshed Model S was revealed this summer, we were introduced to a brand new user interface. An interface that was different from all other Teslas.
Tesla Model S UI
The feature set of the new software is essentially the same as other Tesla models, minus any features that are exclusive to the refreshed Model S, such as Active Road Noise Reduction.
However, the new UI does bring some capabilities that make it easier to use and more versatile.
Some of the biggest changes in the UI include customizable buttons along the bottom of the screen.
It also introduces the ability to drag and dock windows to different parts of the screen.
There are many smaller changes as well, such as a mini music player that sits on top of the map. The mini player gives you quick access to music controls used most often, such as skip and pause.
The new Model S and Model X contain Tesla's latest infotainment hardware, known as MCU 3. It features a more powerful processor, the AMD Ryzen, instead of the Intel Atom processor that is used in MCU 2.
MCU 3 gives Tesla the ability to have a richer UI. The animations in the new UI are smooth and fluid when dragging windows and tapping buttons.
Up until recently Tesla's MCU 3 was exclusive to the new Model S and Model X, however recent Model Y vehicles coming out of China now also include the new MCU.
Although new Model Ys in China now feature Tesla's latest MCU, they are still running the same UI that is found in all Model 3 and Model Y cars.
The speculation began whether these Model Ys would be upgraded to run the new UI that is found in refreshed Model S vehicles. Since they use the same hardware, they should both be capable of running the same software.
New User Interface Coming
A new document that was presented to the European Union outlines changes coming to the Model Y. The document confirms that new 2022 Model Y vehicles, known as V20 will indeed support the new user interface that is used on the new Model S.
The new interface will need to be adapted to a slightly smaller screen since Model Ys have a 15” screen instead of the Model S' 17” screen. However, the bigger adjustment and likely the reason why new Model Ys are not running this new UI yet, is because the software still needs to be adapted to support a single screen.
Since Model 3 and ModelYs only contain a single screen, all the information that is included in the Model S' intrument cluster needs to also appear on the Model Y's main screen. This includes information such as the car's visualizations, speedometer and more.
It's not clear whether visualizations in the Model Y will be permanently docked to the side of the screen like they are in current Model Ys, or whether Tesla will treat them as an app and let you move them around or even hide them.
Current Model 3 / Model Y
The big question on everyone's mind is whether current Model 3 and Model Ys will support the new UI.
There has been no official word from Tesla or Elon Musk, but we expect that this question will be asked more often and Tesla will provide an official answer in the future.
There are various possibilities and reasons why Tesla may or may not support the new UI on current vehicles.
The first possibility is that Tesla will support the new UI on current vehicles, but it will require an upgrade to MCU 3.
This won't be a cheap upgrade, likely in the $2,000-$3,000 or more range, but there would be additional benefits by upgrading the MCU as well, such as faster rebooting, faster loading of apps and even new features that may be exclusive to MCU 3.
The other two possibilities are more obvious, either Tesla will support the new UI on MCU 2 or they won't.
There is currently speculation and good arguments for both sides.
Up until 2017 Tesla was releasing vehicles with MCU 1. All Tesla UI updates in the past have applied to MCU 1 and MCU 2 vehicles. Of course, there are some features that are exlusive to MCU 2, like Tesla Theater, but the look and feel of the interface is the same across the vehicles.
It's possible that Tesla will follow a similar approach and make the new UI available to all.
There are other smaller reasons, such as Elon saying that Auto Shift is coming to all Teslas. That feature is exclusive to the new UI thus far.
There are various other reasons that lead us to think that Tesla may bring the new UI to all vehicles. This may mean that some features such as window dragging or window docking get dropped, but it's very much possible we'll see the new UI in all Teslas.
As many reasons as there are for Tesla supporting the new Model S UI on older Teslas, there are just as many reasons why Tesla won't be able to.
It's obvious that the new interface requires more horsepower, more than MCU 1 or maybe even MCU 2 can deliver. The UI lets you drag apps around. It lets you have multiple apps on screen at the same time, but these more intensive features could be removed for vehicles that may not be able to handle them.
Perhaps the most convincing reason for the new UI not becoming available for all vehicles is that Tesla engineers have said MCU 2 isn't capable of running the new interface. These comments were made by a couple Tesla engineers, so it's definitely not official by any means. They were also said when the new Model S was released this summer, so it's possible a lot has changed since then.
One thing is for sure. Tesla has a history of supporting older vehicles, regardless of the model year. In fact, Tesla still delivers updates to the original Model S that was released in 2012. If Tesla can find a way to bring the new UI to all Teslas, then they most likely will.
Elon tweeted just yesterday that Tesla will be releasing a Holiday Update this year with many ‘cool' features. Who knows what's in store for us. However, just like Christmas, lets temper our expectations and be thankful for anything we receive.
Subscribe
Subscribe to our newsletter to stay up to date on the latest Tesla news, upcoming features and software updates.
Sentry Mode is an invaluable tool for owners - capable of keeping the vehicle safe and secure even when you’re not around. This is especially true in recent times, with the misguided and unfortunate incidents surrounding Tesla ownership, including damage to Tesla vehicles, showrooms, and Superchargers.
B-pillar Camera Recording
With the 2025 Spring Update on 2025.14, Tesla is expanding Sentry Mode’s functionality for certain vehicles with some much-needed changes. Sentry Mode and Dashcam can now record footage from the vehicle’s B-pillar cameras. These cameras are located on the side pillars of the vehicle, between the front and rear doors.
This adds two crucially needed viewpoints, making Tesla’s Sentry Mode a truly 360-degree security system. These cameras also provide the best angles for capturing license plates when parked, so they will be greatly appreciated by owners in the event of an incident.
Updated Dashcam Viewer
These vehicles are also receiving an improved Dashcam Viewer, which now displays the six camera feeds along the bottom and a new grid view that allows you to view four cameras simultaneously. It also allows users to jump back or forward in the video in 15-second increments.
However, to the disappointment of many owners, not all vehicles are receiving these updates due to the additional processing power needed.
We have confirmed that Tesla is only adding the additional camera recording on hardware 4 (HW4 / AI4) vehicles. The newer hardware presumably has the additional processing power and bandwidth needed to handle recording and saving the two additional video streams during Sentry Mode and Dashcam.
For the time being, owners of HW3 vehicles are not receiving this feature. This includes all vehicles with HW3, even those with AMD Ryzen infotainment systems. If you’re not sure whether your vehicle has HW3 or HW4, you can refer to our FSD hardware guide.
While there’s no doubt that recording two additional camera streams would be more computationally intensive, we hope that Tesla adds the improved Dashcam Viewer to HW3 vehicles in a future update.
Update: Tesla is including the new Dashcam viewer for Ryzen vehicles.
New Dashcam Viewer is Available on HW3 / Ryzen Vehicles
Tesla doesn’t include the new Dashcam Viewer as a feature in the 2025.14.3 release notes, but owners with Ryzen-based HW3 vehicles are receiving the improved Dashcam player. However, they’re only receiving the improved player, not the B-pillar camera recording. The new player is a worthy addition, so it’s great to see Tesla include this feature even if B-pillar recording isn’t possible.
The new player includes four improvements:
New grid view that lets you view four cameras at the same time
Different camera views, including the grid view are spread out across the bottom instead of at each corner
You can jump back and forward in 15-second increments
Users can jump to the next Sentry Mode video by tapping the button on the top right corner, making it easier to jump to the next event instead of having to go back to the list of events.
The existing functionality remains largely intact, including the ability to jump to a Sentry Mode event. However, the playback speed selection of 0.5x, 1x, and 2x has been removed.
Surprisingly, and most confusing for many - is the fact that the Cybertruck is also not receiving the improved Dashcam Viewer and B-pillar camera recording with this update. This struck us as odd, especially since the Cybertruck is currently the only vehicle with the improved, more efficient version of Sentry Mode.
Every Cybertruck is equipped with HW4 and AMD Ryzen infotainment units, so this clearly isn’t a hardware restriction. It’s possible the more efficient Sentry Mode is playing a role here due to the infrastructure changes. However, we expect Tesla to address this in a future update and eventually release these features for the Cybertruck as well.
Given the Cybertruck’s high visibility and its status as a frequent target for both positive and negative attention, many owners hoped that the Cybertruck would be one of the vehicles to receive this feature.
Adaptive Headlights
Tesla finally started rolling out its adaptive headlights in North America. While the new Model Y already came with the feature when it was released last month, other vehicles with matrix headlights are now receiving the feature in the Spring Update.
All vehicles with matrix headlights are receiving this feature, which includes the new and old Model 3, first-gen Model Y, and the new Model S and Model X.
If you’re not sure if your vehicle includes matrix headlights, check out our guide. What’s interesting here is that older vehicles that were retrofitted with matrix headlights due to an accident or user replacement are also receiving the adaptive headlights feature.
Legacy Model S & Model X
As with most updates, the older legacy Model S and Model X are not receiving all the features included in this update. Unfortunately, some of the features, which include the Blind Spot Camera on the instrument cluster, Save Trunk Height Based on Location and Keep Accessory Power On are limited to the new Model S and X.
Legacy S and X models will receive the Alternative Trip Plans feature, Avoid Highways (Requires Intel MCU) and the Keyboard Languages feature.
These vehicles are also receiving all the features in the Minor Updates section except for the visualization showing how far the door is opened, which is exclusive to the Cybertruck. These additions include improved music search results, contact photos in the phone app, automatic connecting to hotspots, the ability to show third-party chargers, view Supercharger amenities, and various improvements to music services.
While many users will be disappointed not to receive the B-pillar camera recording and Dashcam Viewer improvements, it’s important to remember that Tesla typically does a great job at bringing features to older vehicles, at least with the Model 3 and Model Y. If a feature isn’t added, it’s usually due to a hardware limitation.
Tesla’s Dan W Priestley attended the Advanced Clean Transportation (ACT) Expo in Anaheim, California, and provided an update on Tesla’s Semi truck program. The presentation covered several key developments on the status of Tesla’s Nevada Semi Factory, refinements to the Semi, and Tesla’s plans for charging and ramping production through 2026.
Let’s dig in and take a look at everything that was captured by the Out of Spec team at ACT Expo. The original video is embedded below if you’d like to watch it.
Semi Factory & Production Ramp
Priestley reaffirmed the timelines mentioned during Tesla’s Q4 2024 Earnings Call that Tesla will scale Semi production in 2026. To achieve this, Tesla has been actively building and expanding the Gigafactory Nevada site, specifically to support the production of the Tesla Semi. The dedicated Semi facility will have a targeted annual capacity of 50,000 Semi trucks.
Following the beginning of production, Tesla will utilize the initial trucks to integrate into its own logistics operations. This will serve as both a final real-world testing ground as well as an opportunity for Tesla to gather data internally. Tesla plans to begin subsequent customer deliveries throughout 2026 as the ramp-up continues.
Reuters also reported that Tesla is hiring over 1,000 new employees at the Semi Factory to begin the rapid ramping of the program.
Semi has already amassed 7.9 million miles with Tesla’s current testing and operational fleets, providing some real-world data and testing. Feedback for the truck has been exceptionally successful, with many drivers praising the Semi’s performance and comfort.
New Tesla Semi Features
Of course, it wouldn’t be a Tesla keynote without showing off some new things. The Semi will be available in 500-mile and 300-mile range configurations, now featuring updated mirror designs and a drop-down glass section to improve visibility and allow easier interaction with external elements—such as control panels at ports, for example.
New Electric Power Take-Off (e-PTO)
The Tesla Semi will also feature a new capability called Electric Power Take-Off, or e-PTO system. Similar to the PTO systems found on other vehicles, this will allow the Semi’s high-voltage battery to power auxiliary equipment at variable voltages. That includes being able to power things like climate-controlled reefer trailers, potentially replacing the noisy and polluting diesel generators traditionally used for this purpose.
Charging and Batteries
Out of Spec BITS/YouTube
Tesla is also working on an updated battery pack design for the final production design of the Semi. This new pack is designed to be more cost-effective to manufacture. The battery pack itself is slightly smaller than before, but the truck maintains the same level of range through efficiencies. Dan also confirmed during his keynote that the battery cells for the Semi will be sourced domestically inside the United States, helping to alleviate potential burdens due to tariffs.
On the charging front, Tesla is using MCS - the Megawatt Charging System - capable of 1.2MW - and designed specifically for Semi. The system uses the same V4 charging hardware found at Supercharger sites but focuses on that larger power output. Alongside a smaller physical footprint, Tesla will be able to configure these V4 cabinets for either dedicated Semi charging or for shared power scenarios with regular Superchargers. Tesla is also working on an integrated overnight charging product, but Tesla isn’t ready to talk about it yet.
46 Semi Charger Sites Coming
The 46 new MCS sites coming soon.
Out of Spec BITS/YouTube
Finally, Tesla has made substantial investments in a public charging network for the Semi. There are currently 46 sites in progress throughout the United States, and plans for significant expansion throughout 2026 and 2027. These sites are strategically located alongside major truck routes and within industrial areas to support long-haul and regional operations. Tesla is aiming to offer the lowest possible energy costs to operators to help incentivize adoption.
This was one of the best updates to the Tesla Semi we’ve received since its initial unveiling. It seems that the Semi will receive a big portion of Tesla’s attention in 2026, while Robotaxi and FSD Unsupervised take the stage this year.
The Tesla Semi has the potential to transform transportation even more dramatically than EVs already have, serving as a testament to Tesla’s mission to electrify the world.
![Tesla’s B-Pillar Recording Requires HW4 [Update: New Dashcam Viewer Included on HW3 / Ryzen Vehicles]](https://www.notateslaapp.com/img/containers/article_images/2025/b_pillar_sentry.jpg/e850716830972554e15b60216a6d0751/b_pillar_sentry.jpg)
![Tesla Semi Keynote: New Features, 46 Charging Sites, Upgraded Battery & More [VIDEO]](https://www.notateslaapp.com/img/containers/article_images/semi/semi-new-features.jpg/c7df4e0d32f8cb0beee080ad201e943b/semi-new-features.jpg)
