Tesla Update 2023.26: Unpacking All the Undocumented Changes

Tesla continues to enhance Service Mode in their vehicles

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Tesla's 2023.26 update, which is now available on most vehicles, arrived with several exciting features, including a Spotify player refresh, support for Bluetooth controllers on the Model 3/Y and the rumored Charge on Solar feature for Tesla Solar and Powerwall owners.

The update also included smaller enhancements, such as the multi-cam view in the Tesla app, the ability to automatic turn on the headlights when the wipers are in use (available in select regions) and more.

For the new Model S and Model X, the update also added some features that were previously available on the Model 3 and Model Y, such as the customizable scroll wheel and the ability to reposition the Blind Spot Camera on the center display.

However, most Tesla updates also include smaller improvements not mentioned in the release notes. Owners slowly discover these changes over time, and we've outlined them here.

Improved Phone Calls

Update 2023.26 automatically adjusts the fan speed while you're on a call

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When you have your climate system set to 'Auto,' the HVAC fan speed may be lowered automatically to reduce cabin noise while you're on a phone call.

Service Mode Improvements

More Service Mode improvements were included in this update

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Several new diagnostic screens have been added to Service Mode. They include the ability to test your steering wheel stalks, scroll wheels, horn and parking brake. You can now view the status and details of your airbags, low-voltage battery and the pitch of your vehicle's cameras.Service Mode is a mode that's typically reserved for service technicians, although it can be accessed by anyone. It is used to view information and test various aspects of a vehicle.

Supercharging Details

More details are now displayed on the Charging screen

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When charging your vehicle at a Tesla Supercharger, your vehicle will now display more details about the Supercharging session.On the Charging screen (Controls > Charging), your Tesla will now display the price per kWh you're being charged, as well as the total energy charged.This is in addition to the Supercharger location and the total cost for the Supercharger session, both of which were added in prior updates.

Automatic Navigation Improvements

The vehicle will now show you if an automatic destination was chosen

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If you have Automatic Navigation enabled in your Tesla, you'll now be presented with your suggested destination when you enter your vehicle.The popup on the screen will display your destination, your ETA, battery upon arrival, as well as a photo of your destination if available.You can begin driving to automatically start the route, or you can cancel the suggested destination.Note: You can turn on Automatic Navigation by going to Controls > Navigation and enabling Automatic Navigation.

Updated Apps Badge

Updated apps will now include a blue dot

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Similar to the "New" badges that Tesla added in update 2023.12 that signify which features are new in menus, Tesla will now display a blue dot underneath each app that is new or has been updated.

Daily Charge Limit

The recommended charge level has been updated for some vehicles

The recommended daily charge level has been updated for some vehicles. Depending on your vehicle, the types of batteries it uses and where it was manufactured, Tesla may have lowered the recommended daily charge limit.

Updated Manual App

The recently added Manual app also received an update

Software Release Notes are now part of the Manual App, which already houses the owner's manual and tutorials. The app's icon has also been updated slightly.You can tab between the three sections of the app by tapping on the names near the top.The Release Notes' left column has been simplified and now only lists the name of the new feature, instead of the category such as "Climate Control Improvements."

Almost every update comes with a handful of undocumented changes that may not be big to make it into the release notes. Have you noticed any other changes in update 2023.26 or 2023.32 that we're not aware of? Let us know.

Tesla’s New Signal Viewer Panel in Service Mode+ Allows You to View Real-Time Data

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Tesla’s latest software update, version 2025.2, brings new features to Service Mode, continuing the trend of improving in-vehicle diagnostics.

Currently, this feature is only available for vehicles with AMD Ryzen infotainment systems and requires Service Mode+, which is a subscription service aimed at technicians. Intel-powered vehicles aren’t supported yet, but we expect this feature to roll out to them as well unless hardware limitations prevent it.

Thanks to Spencer for providing an image of the panel in action.

Signal Viewer Panel

While update 2025.2.6 adds four service mode improvements, including updates to brake burnishing, charge port calibration, and noise recording panel improvements. In this article, we’ll focus on the new signal viewer panel.

This new panel offers a live data feed from selectable vehicle sensors. You select the signals you’re interested in and it’ll plot the signal on a graph. In addition to allowing you to view real-time signal data, it also allows you to record them.

The signals are searchable and can be easily added or removed from the panel. You can track up to 10 sensors, and the UI allows three of them to be viewable at once.

However, this is Service Mode and it’s more than just pretty looks. You can really dig down into these charts. You can pan them left and right through time, and tapping a specific point shows the exact value of that signal. The panel also supports pinch-to-zoom, enabling you to adjust the time scale across all panels simultaneously.

This feature is exclusive to Service Mode+, which requires a subscription to Tesla’s ToolBox3 software and a connection to a computer. It’s designed to help technicians diagnose issues related to signal quality, noise in the vehicle’s electrical systems, and signal variance in components during driving.

We’re excited to see Tesla’s continued focus on repairability, especially with additions like the Cybertruck’s Interactive Wiring Diagram and the launch of the Tesla Online Parts Catalog, which lets customers purchase parts directly.

Plus, with the reduced cost of ToolBox 3 subscriptions, even DIY enthusiasts now have access to tools that make Tesla repairs more accessible.

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Tesla Introduces New Model Y Variants in Europe; Ends Launch Series

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Tesla has updated its Model Y lineup in Europe, introducing new standard configurations while discontinuing the limited-edition Launch Series. With the new variants now available, European customers will have more choices and cheaper options to pick from.

The Launch Series and some of its exclusive features will no longer be offered—except in the UK, where it remains available alongside the new lineup.

New Models Introduced

Tesla’s new Model Y lineup in Europe includes three main variants. The prices vary slightly from country to country.

• Rear-Wheel Drive (RWD): Priced at €44,990, this model is the most affordable new Model Y, but it also has the shortest range and is missing a few features available on other trim levels.

• Long Range Rear-Wheel Drive (LR RWD): Available for €49,990, this version is essentially the same as the RWD model, but with a larger battery. It has seen a €1,000 price increase compared to the outgoing Long Range RWD model.

• Long Range All-Wheel Drive (LR AWD): At €52,990, this model has seen a price drop of €2,000, making it a better deal than the previous LR AWD Model Y. This is also the only new Model Y to come with most of the same features as the Launch Series, including additional speakers, a subwoofer, premium materials inside the cabin and improved acceleration. Acceleration boost should also become available for this model, letting it match the performance of the Launch Series.

All Model Y variants come with all the improvements that we’ve discussed about the new Model Y, including the new front and rear light bars, improved aerodynamics, ventilated seats, improved heat and sound isolation, and the 8-inch rear touchscreen. Some exclusive options, like the Midnight Cherry Red paint, appear to no longer be available. However, Tesla has already said that they’ll be introducing new paint options for the Model Y in North America.

Compare Model Y Variants

Here’s how the various Model Y variants compare to each other:

Launch Series Ends

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The Launch Series, which debuted just weeks ago in Europe, has now been phased out. This limited-edition model was priced at €60,990 and included a suite of premium features comparable to a bundle deal you may find with other products. It came equipped with Full Self-Driving (FSD), Acceleration Boost, and exclusive badging on the rear liftgate, door sill plates, and puddle lights.

While the Launch Series is no longer available for new orders in most European countries, customers can still get a similar vehicle by opting for the Long Range AWD model and manually adding premium features like FSD. Acceleration Boost, which was standard in the Launch Series, is expected to become available for purchase once these vehicles are delivered or soon afterward. However, some exclusive elements, such as badging and trim details, will remain unique to the discontinued edition.

For now, the UK remains an exception, still offering the Launch Series alongside the newly introduced models.

Performance Model Still to Come

With Tesla now introducing the expected variants of the refreshed Model Y, one notable absence is the Performance model. While the Launch Series was fast due to the Acceleration Boost addon, there’s no doubt the Performance version will be in a league of its own.

What we saw Tesla do with the 2024+ Model 3 Performance variant was more than just using binned motors. The vehicle featured unique bumpers, a spoiler, an improved suspension, sport seats, Track Mode V3 and other features that made the vehicle stand out compared to the Model 3 AWD.

The Performance version of the new Model Y is expected to become available later this year, however, expect it to carry a $5-$8k premium over the AWD model.

Other Regions to Follow

As Europe phases out the Launch Series, other regions are expected to see similar changes. With the other models now revealed, owners in other regions have a better idea of whether they should buy the Launch Series or wait for the additional models to arrive.

Tesla naturally adjusts its offerings based on market demand, and if sales of the Launch Series remain strong in other parts of the world, Tesla will likely wait it out a little longer before offering the other models.

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