Tesla's Holiday Update: The 15 Undocumented Features

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While Tesla’s exciting holiday update is now behind us, it left us with amazing new features, such as weather radar, Apple Watch support, mobile Dashcam viewer, SiriusXM, and so many other great features that some of us now use every day.

However, it doesn’t end there. Tesla always includes other smaller changes that don’t make it into the release notes, and the holiday update was a big one in terms of undocumented changes.

We’ll go through all the new features that are now available in your vehicle that Tesla didn’t show in their release notes.

Precipitation Map

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While this feature did make it to the release notes, some users may still not be aware that the Precipitation Map (weather radar) is now available on all Teslas with the Intel infotainment unit (except for legacy Model S/X). This feature was requested so long ago that, honestly, we didn’t think it’d ever be released. All Model 3, Model Y and 2021+ Model S and X vehicles now have access to the weather radar map overlay.

Fart on Sit

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For the Emissions Testing Mode easter egg, you can now have your vehicle fart when someone sits down in their seat.

The sound will come from the direction of their seat. For example, a fart sound will sound from the front-right speaker when someone sits in the front passenger seat. It will play the sound selected in the fart selection box, or play a random fart if you choose "I'm so random."

This option defaults to off after every drive.

Voice Assistant

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You can now say 'Hi' or 'Hello' to your vehicle through the voice command prompt, and the vehicle will respond with "Hello!"

This is the first sign of Tesla adding a smart voice assistant to the vehicle, which is expected to be powered by Grok.

Voice Command Changes

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If you use Tesla's voice commands, there are a few changes. When you press the voice command button on the steering wheel, you may now not get audible feedback that the button has been pressed. This will depend on whether there’s music playing or other circumstances.

When sending a text message through a voice command, you may now have to press the steering wheel button again to start dictation after choosing a recipient. It’s not clear what’s causing this change, as sometimes it goes straight into dictation mode, while other times it ask you to press the button to start dictation.

Equalizer

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You can now reset the equalizer settings with the touch of a button by tapping the new circular arrow to the right of the equalizer. This will bring all settings back down to 0.

Performance Improvements

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Intel users are seeing performance improvements while using the Tesla interface, especially in more demanding areas like Tesla Theater. Videos on YouTube now stutter less and Tesla Theater can be minimized more smoothly than before.

The media controls can now control YouTube videos and other web video content as well, even after the vehicle is put into drive.

Service Mode Updates

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Several screens in Service Mode have been updated to show larger visualizations, such as the Airbags and Seats menu.

Tesla has also introduced several new visualizations to vehicles with the Intel infotainment unit, that were previously only available on AMD-based vehicles. Some of these includes Coolant and HVAC options.

The only new feature in Service Mode is for the Cybertruck under Service Mode Plus, which includes:

Connector Reference (Service Mode Plus): A new Connector Reference panel is available to help find connectors and highlight harnesses on the vehicle. Rotate the 3D model to explore or type in the search bar to find a specific connector.

Rearranged Menus

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With the addition of the Seats menu to settings, Tesla has now rearranged the menu options so that the more used options are now more easily accessible.

The Software menu has been moved up, while other options like Navigation and Trips have been moved down to be close to WiFi, Bluetooth and Upgrades.

Selected Custom Lock Sound

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The currently selected custom lock sound is now shown underneath the Lock Confirmation Sound option in the Controls > Locks menu.

Ambient Lighting Easter Eggs

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The Rainbow Road and Santa Mode easter eggs have been updated on vehicles that include the ambient lighting feature.

There are new options in these easter eggs that let you enable or disable the ambient lighting while the easter egg is active.

If enabled, the light strips will cycle through colors of the rainbow when the Rainbow Road easter egg is enabled. For Santa Mode, the interior lights will cycle between red, green and white.

Updated Energy App

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The Consumption tab in the Energy app has been updated with several changes, including:

• The last 200 miles are now shown, instead of a user-selectable, 5, 15 or 30 miles.

• Instant Range / Average Range has been removed to simplify the interface.

• The average range as moved to the top left and now shows the offset from the vehicle's EPA-rated Wh/mi

• Total energy consumption is now displayed at the bottom left.

• The colors now have different meanings. Before this update, yellow meant the vehicle was using energy, while green meant the vehicle was generating energy through Regenerative Braking. However, now, yellow means that the vehicle consumed more than the EPA average, and green means that the vehicle consumed less than the EPA average and doesn’t necessarily mean it generated energy.

Toll Roads

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When navigating to a destination, the alternative routes menu that is displayed when you first enter a destination will now show you which routes include tolls by displaying a dollar sign icon next to the travel time.

Limiting Explicit Content

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The Exlicit Content toggle under Audio Settings now applies to YouTube Music as well. This now supports LiveOne, Apple Music, Apple Podcasts, and TIDAL.

Charging Icons

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Tesla has redesigned the charging pins that appear on the map. Supercharger and third-party charger pins are now oval-shaped instead of circular.

Instead of just having the number of charging stalls available, Tesla has added the charging icon to make it more obvious these are charging stations.

Adjust Dashcam Viewer Speed

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You can now adjust the Dashcam Viewer's playback speed. Users can pick from 0.5x, 1x or 2x playback speeds by tapping the playback speed button.

Tire Pressure Indicator

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Tapping the tire pressure indicator will now open the tire pressure card on the left side of the screen instead of opening the Service menu under Controls > Service.

If you ever spot a change that isn’t listed in Tesla’s release notes, we’d love to hear about it!

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Tesla Q1 Update on Optimus, Batteries, and Tesla Energy

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The 2025 Q1 Earnings Call gave us the opportunity to learn about a lot of things, from Unsupervised FSD, to the Robotaxi program, to the update on the more affordable model. There was a lot of news to unpack, but there’s still more.

In this article, we’ll cover Tesla’s updates on Optimus, batteries, and Tesla Energy.

Optimus

Tesla has been working away on their humanoid robot and continues to make progress in software and hardware.

First, Tesla is preparing the Fremont factory for the Optimus pilot production line, which is scheduled for completion later this year. Once it is, wider deployments of Optimus for internal use within Tesla’s facilities are expected as well. Tesla aims to have several thousand Optimus units working in its North American factories by the end of the year once the pilot production line is operational.

Tesla’s goals for production remain extremely lofty - 1 million units per year by 2030. However, they could face some challenges when ramping production.

Key components like the shoulder actuators use specialized permanent and rare-earth magnets, which are currently sourced from China. Due to recent Chinese restrictions on the overseas sale of these magnets, Tesla is seeking an exemption or alternative suppliers. They have not yet looked into modifying the shoulder actuator but will likely do so if they cannot obtain the necessary materials.

Batteries

Batteries are another item that Tesla’s teams have been working on behind the scenes for years now. The second generation of the 4680 - the Cybercell - has been IRA-compliant for some time now. This means that the Cybertruck is eligible for the US Federal EV rebate. 

Tesla also achieved the lowest cost-per-kWh of any of its cells with the 4680 battery - and it is potentially one of the cheapest cells being manufactured by any vehicle battery manufacturer at this point. With dry-cathode still being worked on, Tesla may be able to squeeze more optimizations and cost efficiencies from the 4680 cells.

Additionally, Tesla is progressing with its plans for lithium refining and cathode production in the US, both of which are scheduled to commence in 2025. While the company says they’re no longer supply-constrained for non-LFP vehicle batteries, on-shoring production and sourcing critical minerals from nations outside of China will be key.

LFP batteries continue to be supply-constrained, namely for the Tesla Energy division. LFP batteries and their materials are sourced from China. Due to tariffs and limited exports, Tesla can’t obtain enough and is considering potentially building an LFP production facility in North America.

Energy

Tesla’s energy division is still experiencing some of the highest growth of any of its divisions. Year over year, Tesla saw a 154% increase in energy storage deployments, including both Megapack and Powerwall - for a total of 10.4 GWh deployed in just Q1 2025. While deliveries in energy storage remain volatile due to the nature of Megapack installations, Tesla expects growth to continue rapidly in this segment.

Tesla also deployed 1GWh of Powerwall 3 residential storage this quarter, marking its strongest quarter. Powerwall 3 has received positive feedback from customers, many of whom appreciate its new capabilities with its built-in inverter for solar.

Megapack is continuing to see demand increases, currently highlighted by utility-scale Megapack systems, as well as data centers requiring stable power delivery. Megafactory Shanghai is also online now and producing Megapacks - with an annual production capacity of 20GWh today and up to 40GWh in the future. The site has also produced over 100 Megapacks this quarter, which are all awaiting delivery.

There was a lot of interesting news from Tesla’s Q1 2025 Earnings Call, covering everything from FSD and Robotaxi - to the less glamorous but equally important Megapack and Powerwall.

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Tesla Introduces AI-Powered Phone Support for Tesla Insurance, Reducing Wait Times and Cutting Costs

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Tesla is heavily leaning into artificial intelligence, and its insurance offering is just another example of how it’s improving its product or lowering costs by leveraging AI.

Tesla recently started offering an insurance discount in select states when drivers use FSD for at least 50% of their drives and now it’s introducing an AI to help handle customer claims.

Tesla has developed an in-house voiced AI agent that can assist customers in handling simple support requests for Tesla Insurance.

Although Tesla Insurance is currently available in just 12 U.S. states, its voice AI assistant is accessible via phone across all supported states.

What the AI is Doing

For customers calling in from those states, the new AI agent provides a unique way to address the most common support calls. And it’s not just answering common questions but actually making requested changes to the owner’s account.

Policy Changes

The first key item is that it automates policy changes. Simple policy updates, including adjusting your deductible or coverage limits, are now done via AI. For policyholders who are simply looking to make quick changes and don’t have any questions, this makes the process a lot quicker by not having to wait for a representative. Tesla isn’t eliminating representatives, but this could reduce the number of representatives required or reduce wait times.

Continue Where You Left Off

The second item here, highlighted by Raj Jegannathan from Tesla’s internal IT team, is that Tesla’s AI agent is able to offer summaries of the user’s last interaction with Tesla Insurance. It will summarize your last interaction and provide assistance on that particular topic if you need to continue it. That means that you don’t have to wait for a human to review your file - the AI will kick off right where you left off.

Tesla appears to be focused on improving efficiency and making support more accessible. While actual items like claims are left up to humans due to their inherently complex nature, this helps free up employees to handle more complex items. While there’s no doubt Tesla will continue to develop this AI like they do everything else, we may soon see it take on even more tasks.

More AI

This isn’t the first AI agent that Tesla has demoed - there is now a chat-based AI sales agent available on the front page of Tesla’s website, which is able to answer common questions on Tesla vehicles.

Tesla has also been improving their AI support tool available in the Tesla App is able to provide feedback on common issues and also guide users towards either solving the problem or placing a support request.

Tesla has recently updated this AI to offer personalized support, allowing you to ask questions such as ‘What are my vehicle service alerts?’ or ‘Does my vehicle have a heat pump?’

Tesla’s strategy here is to influence the cost-heavy areas associated with having humans address simple requests and instead leverage AI, which can offer instant answers and reduce support costs.

Roll Out to More States

While this new AI is currently limited to just 12 states, it is likely to follow Tesla Insurance’s expansion. Insurance seems to have been at a bit of a standstill lately. Tesla continues to improve features such as the improvements to Safety Score V2.2, but we haven’t seen Tesla roll out support to new states since it added Minnesota in November of 2022.

Tesla may be looking to lower costs and refine the experience before it expands to additional states.

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