Tesla Releases the 2021 Holiday Update with update 2021.44.25

By Nuno Cristovao

This year's Holiday Update was building up to be an exciting one. After last year's disappointment, Tesla was certainly not planning to repeat it again this year.

The Holiday Update was expected to be released to the first individuals on Tuesday, and just a few hours before, we're now seeing many of the new features in this year's Holiday Update.

Let's just say it's a good one. If you're the kind of person that prefers to be surprised, you may not want to scroll any further.

The Holiday Update comes in as version 2021.44.25.

Light Show

Tesla Light Show
Tesla Light Show
Emulsifide/Reddit

Just as the rumor showed yesterday, the former Model X exclusive Light Show easter egg will now be available on all Teslas.

This easter egg will have your car use its headlights, fog lights, turn signals, mirrors, and speakers to perform a coordinated light show.

The Model X's version of the easter egg plays the Trans-Siberian Orchestra. It's not clear whether this easter egg will play the same song or offer a variety of songs to pick from.

Customizable App Launcher

Customize your app launcher
Customize your app launcher
Emulsifide/Reddit

This one is huge. Tesla is bringing some of the "v11" software features to the Model 3 and Model Y. Technically, the new Model S is not on v11, but its new interface is often referred to as v11 or the new UI.

It's not the entire Model S UI that is being brought over to the Model 3 and Model Y, but instead some of its most functional features.

Some features such as window docking, Auto Shift, the music mini-player, and other features will remain only on the new Model S, at least for now.

This feature brings over one of the most useful features of the new UI, a customizable app launcher.

The car's bottom navigation will now feature three areas. A fixed area of icons that you can't change, a customizable area where you can put your favorite Tesla apps such as the web browser, energy graph, or Spotify, and a Recents section that will show any recent apps you've used.

For better or worse, the app icons are now also the same ones from the Model S, featuring more detailed, colorful icons.

Simplified Controls

Simplified Controls
Simplified Controls
Emulsifide/Reddit

The Model 3 and Model Y feature swipeable cards underneath the car's visualization that shows important information such as the odometer, tire pressure readings, active call information, wiper settings, and more.

The idea of the cards is good, but some crucial information was only available in these cards, which wasn't intuitive. Tesla is fixing that in this update.

Tesla is keeping some of the cards such as wiper controls, but moving most of the other information into the car's main Controls menu.

For example, to access the odometer, you will now go to Controls > Trips, much like the Model S.

For tire pressure, you can go to Controls then choose Service.

Blind Spot Camera

Blind Spot Camera
Blind Spot Camera
Emulsifide/Reddit

You can now choose to have your car's fender camera feed displayed directly on the screen when you activate your turn signal.

This is the same camera view that can be displayed when you put your car into reverse.

It will be an option for those that prefer not to use it.

Edit Waypoints

Edit Waypoints
Edit Waypoints
Emulsifide/Reddit

Tesla introduced Waypoints just a few weeks ago. So many owners were excited to receive the update, but now, even before many owners have received waypoints, Tesla has a major update to it.

When waypoints was introduced, you needed to add destinations starting with your final destination first, as there was no way to reorder the destinations.

With this update Tesla is making waypoints more flexible, you will now be able to add, remove or reorder waypoints.

TikTok

TikTok
TikTok
Emulsifide/Reddit

TikTok will now be the latest video service added to your Tesla. It will require Tesla's Premium Connectivity plan unless you're on WiFi and it will be available alongside other streaming services in Tesla Theater.

Sonic the Hedgehog

Sonic the Hedgehog
Sonic the Hedgehog
Emulsifide/Reddit

This was another suspected feature in this year's holiday update. Elon and Sega both confirmed that the original Sonic game will be playable inside of Teslas in the near future.

Like many of Tesla's other games, this one will also support a controller. Check our list of all controllers compatible with your Tesla, as you may already have one that works.

The Battle of Polytopia - Multiplayer Support

Multiplayer Support
Multiplayer Support
Emulsifide/Reddit

Tesla added The Battle of Polytopia, a civilization-type game late last year. Tesla has now expanded the game to include multiplayer support.

Sudoku

Sudoku game
Sudoku game
Emulsifide/Reddit

Late last year Elon was asked on Twitter whether the game Sudoku could be added to Teslas. Elon responded with one of his typical, "sure" replies.

And a year later, we have Sudoku.

It looks like the game will have various difficulty levels and hints. Like most Tesla games, it should also save your progress so that you can continue your puzzle next time.

Cold Weather Improvements

Cold Weather Improvements
Cold Weather Improvements
Emulsifide/Reddit

Honestly, I'm not sure why Tesla is still using this term. I feel like we're all tired of seeing it and it causes an unintentional eye roll for many.

However, it looks like there is something worth mentioning here. You will now be able to precondition your car even if you have a low battery.

Previously if your battery had less than a 20% charge, you would not be able to precondition the car. It looks like Tesla will now let you precondition your car unless your car's battery is very low.

Automatic Seat Heaters

Automated seat heaters
Automated seat heaters
Emulsifide/Reddit

This was another feature that Elon said was coming soon earlier this year.

Tesla is simplifying the seat heater controls by turning the seat heater button into a single on/off button, instead of having four different settings (off, level 1, 2, and 3).

The temperature of your seat will instead vary based on the temperature of the cabin and what the climate system is set to.

You will continue to be able to set your seat heater manually if you don't have your HVAC system set to auto.

Manage Dashcam Clips

Delete all events
Delete all events
Emulsifide/Reddit

Tesla's dashcam is a fantastic feature, but it's easy to accrue a bunch of clips that later need to be deleted one by one.

With this update, Tesla will now let you delete all dashcam clips with a single tap in the main Controls menu.

Many users would have preferred to be able to manually select multiple Dashcam or Sentry Mode clips directly from the Dashcam Viewer and delete them that way, but this is a nice feature to have nonetheless.

Dark Mode

Dark Mode
Dark Mode
Emulsifide/Reddit

Tesla already supported light and night modes that would automatically switch based on the time of day.

However, Tesla is now introducing a new Dark Mode that will presumably be more usable during the day.

Tesla's previous night display was often difficult to see in bright situations. This mode is expected to use darker colors and increased contrast instead of the grays used in night mode.

Hide Map Details

Hide pins
Hide pins
Emulsifide/Reddit

Continuing with Tesla's theme of simplifying the display and controls, Tesla will now let you hide unneeded map information.

This new feature allows you to hide nearby locations that normally appear as a pin on the map.

It looks like these are the majority of the features in this year's holiday update.

These features are based on what an owner has received in their Model 3. There may be some additional features for other Model 3 configurations or features that may be exclusive to the Model S or Model X.

You can also view the release notes for Tesla's Holiday Update (2021.44.25).

Update: Tesla released many new features in the 2021 Holiday Update. The holiday update was released with version 2021.44.25.

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Tesla Adds New Anti-Theft Protection for Supercharger Cables

By Karan Singh
Not a Tesla App

Tesla has begun installing a new set of anti-theft measures on some Supercharger cables. This is a two-part process, and includes an exterior-wrap called DyeDefender, as well as engravings on the actual copper of the Supercharger cables themselves.

Superchargers, just like other high-speed electric vehicle charging stations, have been consistently subject to both vandalism and theft. While vandalism is something that can be reduced by increasing policing and security in the area, theft is a different beast to tackle. 

Thieves are usually after the copper inside the charging cable - which is densely packed and valuable when taken to a scrap yard. So how is Tesla tackling this?

DyeDefender

First up is a field trial of a product called DyeDefender. You can find this product online to secure ICE catalytic convertors, but the overall premise is fairly simple. A pressurized staining dye is housed inside a stainless steel hose, which is laid overtop or around the object you need to protect - in this case, the Supercharger cable.

The stainless steel cable itself is called CatStrap - and is extremely difficult to cut through. If you do manage to cut through, the dye squirts out, coloring you blue quickly. The dye itself is harmless, but helps to identify potential thieves. Tesla’s Head of Charging - Max de Zegher, confirmed that this is only a trial rollout - instead, Tesla is considering another alternative.

Tesla has begun installing new anti-theft measures on some Supercharger cables, consisting of an exterior wrap called DyeDefender and engravings on the copper wiring inside the cables.

Like other high-speed EV charging stations, Superchargers have been frequent targets of vandalism and theft. While vandalism can often be mitigated through increased security, theft presents a bigger challenge. Thieves primarily target the copper inside the charging cables, which is densely packed and valuable as scrap metal.

DyeDefender

To address this, Tesla is trialing DyeDefender, a theft deterrent system commonly used to protect catalytic converters. It consists of a pressurized staining dye housed within a stainless steel hose called CatStrap, which wraps around the Supercharger cable. The CatStrap is highly resistant to cutting, but if breached, it releases a bright blue dye. While harmless, the dye is difficult to remove, making it easier to identify suspects.

In addition to DyeDefender, Tesla is also engraving the actual copper wiring inside the cables, making stolen material harder to sell since scrapyards often reject marked metals.

Engraved Cables

This alternative is more scalable, more cost effective, and doesn’t impact service operations or the customer experience - and its simply engraving the copper inside the cables. Superchargers cables will state “Property of Tesla” on them - engraved right into the cable from the factory in Buffalo, New York.

Engraved -
Engraved -
Not a Tesla App

Recycling companies and scrap yards will see that the cables belong to Tesla - and won’t accept them. Instead, they’ll reach out to Tesla to inform them that they have received stolen goods. While that may not have an impact immediately - as thieves learn that the copper they steal from Superchargers is worthless and could risk them getting in trouble, they’ll be less likely to go ahead and try.

It is definitely interesting to see Tesla try out some rather unique options to keep Supercharger sites safe and functional. Tesla will likely focus the deployment of DyeDefender in areas that experience continual theft - but again, this is only a trial. The impact of cable engraving will likely take some time, but it’ll pay off in the long run.

Until then, make sure to keep reporting any downed Supercharger sites. You can do that in the Tesla App through Location > Charging >Select Site > Report an Issue. If you have any other neat ideas on how Tesla can stop vandalism and theft, let us know in the comments or in the forums!

This solution is more scalable, cost-effective, and doesn’t disrupt service operations or the customer experience—it simply involves engraving the copper inside the cables. Supercharger cables will be permanently marked with “Property of Tesla Motors,” engraved directly at the factory in Buffalo, New York.

Recycling companies and scrap yards will immediately recognize that the cables belong to Tesla and refuse to accept them. Instead, they may notify Tesla that they’ve received stolen goods. While this may not have an immediate impact, over time, as thieves realize that stolen Supercharger copper is unsellable and could get them caught, they’ll be less inclined to target them.

It’s interesting to see Tesla experiment with unique ways to protect Supercharger sites. While the company will likely focus on DyeDefender deployments in high-theft areas, this remains a trial phase. The full impact of cable engraving may take time to materialize, but it should prove effective in the long run.

In the meantime, continue reporting any downed Supercharger sites through the Tesla app by navigating to Location > Charging > Select Site > Report an Issue.

If you have any creative ideas on how Tesla can prevent vandalism and theft, share them with us on social media.

Tesla Activates In-Cabin Radar in Software Update 2025.2.6

By Not a Tesla App Staff
Not a Tesla App

Tesla has released software update 2025.2.6, and while minor updates typically focus on bug fixes, this one introduces a major new feature. With this update, Tesla has activated the in-cabin radar, a sensor that has been included in some vehicles for more than three years but remained unused until now.

Why Not Vision?

Unlike vision-based systems, radar can precisely measure object dimensions and even detect movement behind obstacles by bouncing radio waves off surrounding surfaces. This allows for more accurate and reliable measurements of objects that vision may not even be able to see, such as behind the front seats.

What Tesla Announced

Tesla recently highlighted the 4D radar in the new Model Y, explaining how it will improve passenger safety. Tesla executives stated that the radar would be used to properly classify passengers and improve the way airbags deploy.

Tesla went on to say that in a future update, Tesla will use the in-cabin radar to detect any potential passengers left in the vehicles. Since radar can even pick up on heartbeat and breathing patterns, it can provide a much more accurate method of detecting children left in a vehicle. Tesla talked about how the vehicle will send owners a notification via the Tesla app and enable the HVAC system if it detects a passenger in the vehicle. It’ll even call emergency services if needed.

New Feature in Update 2025.2.6

Tesla has officially named this feature in update 2025.2.6, “First-Row Cabin Sensing Update,” which appears to align with the first portion of what Tesla discussed in the new Model Y video.

In the release notes, Tesla describes the update as:

“The first-row cabin sensing system has been updated to use cabin radar, which is now standard in all new 2025 Model Ys. Your Model Y was built pre-equipped with the necessary hardware, allowing Tesla to also bring this technology to your vehicle.”

For now, it appears that Tesla is using the radar to detect and classify passengers in the front seats. This could eventually replace traditional seat sensors, reducing the number of hardware components and lowering production costs.

Tesla plans to expand the feature later this year, bringing rear-seat passenger detection in Q3 2025. While Tesla talked about the feature for the new Model Y, we expect it to be available for all vehicles with the in-cabin radar.

Supported Models

Although Tesla is vague in their release notes, this feature is being added to all Model Ys that include a cabin radar. Tesla started including the cabin radar in 2022, but its availability may vary by region and model. The Model 3 didn’t receive the cabin radar until it was redesigned in 2024, while all Cybertrucks already include it.

The owner’s manual for the redesigned Model S and Model X doesn’t specifically mention the interior radar, although Greentheonly believes the vehicles also include one, so we’ll have to wait to determine whether those vehicles also receive this new feature.

At this time, the feature appears to be only going out to Model Y vehicles, but we expect it to become available on other supported models soon.

We love to see these kinds of updates. Tesla is increasing the safety of existing and new vehicles through a software update while also making them more affordable to own.

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