Tesla Update 2024.2.3 Is Improving Phone Keys By Adding Ultra-Wideband Support

Tesla is improving its phone key with ultra-wideband support

Maxim

In Tesla update 2024.2.3, Tesla is rolling out support for ultra-wideband, a wireless protocol that will drastically improve how Tesla phone keys work.

Ultra-wideband (UWB) requires hardware support on the user's phone and the vehicle, so only some of the most recent models will be supported.

What is Ultra-Wide

Ultra-wideband is similar to Bluetooth in that it uses short-range radio waves to enable devices to communicate, although it’s a separate protocol all together. It uses less energy than Bluetooth while providing high-precision location tracking beyond what can be achieved with Bluetooth. The technology is often used to accurately locate devices and determine the precise distance between multiple UWB devices.

Improved Phone Keys

Tesla phone keys are fantastic and give you a way to lock and unlock your vehicle without having to carry a key. They also let you share temporary or permanent keys with others without ever having to hand something over physically. It's one of the ways Tesla can now offer self-serve demo drives without any staff on hand.

While phone keys are great and work reliably most of the time, occasionally the car doesn't recognize that the phone is nearby, requiring you to take out your phone and unlock it or even open the Tesla app before it recognizes that the phone is nearby.

The addition of support for ultra-wideband should solve these issues almost completely by precisely knowing where the phone is in relation to the vehicle. UWB support is also expected to improve other features that rely on knowing your phone’s location, such as selecting the correct driver profile depending on which phone key is closest to the driver’s side.

Enabling UWB Phone Key

The new phone key won’t work out of the box. To use the improved UWB phone key, you’ll need to set it up in the Tesla app. The app will prompt you to “Upgrade Your Phone Key,” and you’ll then need to grant the app access to UWB, which the iPhones call Nearby Interactions. You can remove or check on whether the app has access at any time by navigating to iPhone Settings > Privacy & Security > Nearby Interactions.

Release Notes

Tesla states that its new feature "Ultra-Wideband Phone Key" will improve your phone key due to greater accuracy and better responsibleness.

The release notes read:

"Ultrawide band (UWB) technology is now available for Phone Key. So your vehicle and Phone Key can communicate with greater accuracy to more responsively lock, unlock, and open Automatic Doors.”

“In the Tesla app, choose Phone Key > Upgrade and follow the instructions. After setup, keep your iPhone Settings for Nearby Interactions on for Tesla. Requires iPhone 11+ and Tesla app 4.29.5+."

Cars Supported

Since ultra-wideband requires specific hardware, it can’t be added in a software update unless the hardware is already in the vehicle. Only some of the latest Tesla vehicles appear to support the new wireless protocol.

We have confirmed that the new Model 3 is supported, as well as the 2023 Model X. All refreshed Model S and Model X vehicles include the new UWB frequencies in the certificate of conformity and are likely to receive this feature, but it doesn’t appear to be going out to all new S/X models yet. The Cybertruck is expected to be supported as well.

The first-gen Model 3 and current Model Y unfortunately do not have UWB support.

Phones Support

In addition to the vehicle having support for UWB, the phone must also support it. All models since the iPhone 11 have included support for ultra-wideband. This spans across all models and sizes.

While some Android phones also include UWB hardware, Tesla is launching support for the iPhone first, but we can expect supported Android phones running Android 13 or later to be added at some point in the future as well.

On the Android side, the Pixel 6 and above have support for UWB on the Pro models, while the Galaxy S series phones support the protocol since the S21, but only on the Plus and Ultra models. The Galaxy Z Fold 2 and above also include support as well as other flagship Android phones.

Tesla App Support

Tesla started adding support for ultra-wideband back in July 2023 when Tesla updated their app to v4.23.5 and included references to ultra-wideband. Tesla says that you’ll require the latest Tesla app, v4.29.5 or higher to use the new feature.

Ultra wide-band will bring greater accuracy and reliability to Tesla's phone keys. The phone key is already great and the only thing holding it back is its ability to work reliably 100% of the time, but it looks like that is about to be fixed if you own a new Tesla model.

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Tesla Vehicles are the Cheapest to Maintain and Repair According to Consumer Reports Study

Consumer Reports

Tesla cars are the cheapest to maintain and repair according to a new study by Consumer Reports. Elon Musk commented on the survey on X emphasising that Tesla is “the lowest car to maintain”.

The study, which includes data from thousands of car owners in the US, was recently published and shows that Teslas averaged only $580 in maintenance and repair costs over the first five years of ownership. From years six through ten, the costs increased to $3,455, which brings the total to $4,035 for the first ten years of ownership — the lowest of any vehicle tested. It’s worth noting that the average length of car ownership in the U.S. is about 8 years. 

Buick and Toyota fall right below Tesla (both at $4,900) with Lincoln and Ford closing the top 5 with $5,040 and $5,400 respectively for maintenance and repair costs in a 10-year ownership.

German premium automakers BMW, Audi and Mercedes-Benz are among the 5 most expensive on the list with 10-year costs reaching $9,500, $9,890 and $10,525, respectively. The trio is only surpassed by the luxury German automaker Porsche with an average cost of $14,090 and Land Rover closes the list at $19,250. 

Car Maintenance

Vehicles with internal combustion engines (ICE) require additional maintenance, not only oil changes, but drive belts, transmission oil changes, coolant flushes, and more. Not only that, but ICE cars have more moving parts that decrease the reliability of the vehicle and can cause additional repairs such as transmission issues, clogged fuel filters or injectors, faulty spark plugs and the list goes on and on.

Since electric vehicles use regenerative braking to slow the vehicle down, brake pads also last much longer, sometimes lasting over 100k miles. This reduces wear on the brake pads, and rotors and even reduces brake dust on your wheels.

“EVs are cheaper to maintain, look after, and certainly to service,” says Matt Cleevely, from Cleevely Motors to Wired magazine adding that EVs “have half as many moving parts and require no regular oil changes”.

In Tesla’s case, the automaker suggests Model 3 owners replace the cabin air filter and HEPA filter every three years, check brake fluid every two years, and clean and lubricate the brake calipers every year or 12,500 miles, in areas where the roads are salted during the winter.

Gas Savings

These maintenance savings are only a small part of the reason why electric vehicles are cheaper to use for daily driving. Another large portion of savings comes from fuel costs. Tesla often promotes their vehicles’ gas savings on their website. For example, the Model Y has an estimated gas savings of $6,000 in the U.S. over the first five years of ownership alone. The savings may be even greater in other parts of the world where gas may be more expensive. After taking those savings into account, the world’s best-selling vehicle in 2023 starts at $29,490 after gas savings and the U.S. federal tax credit — and that’s before you include maintenance cost and time savings.

Cheapest cars to maintenance and repair through 10-years of ownership

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Tesla is Creating a Voice Assistant to Replace Voice Commands [Example of Voice]

It looks like Tesla may soon be replacing its archaic voice commands with something much more useful — a voice assistant.

Greentheonly, who often takes deep dives into Tesla software by decompiling the firmware and looking for changes, has now found the early integration of a voice assistant.

Voice Assistant Already Available in China

Tesla has already replaced its voice commands in China with a voice assistant that can not only control certain aspects of the vehicle using more natural language but can also answer common knowledge questions such as the current weather, stock quotes and more (video below).

Available Only on AMD?

Correction: Tesla’s voice assistant in China is only available on vehicles with AMD processors (MCU 3), and unfortunately not on older Intel-based (MCU 2) cars. If Tesla is utilizing the same core technologies in its upcoming voice assistant for other regions, we may see the same limitation.

Intel vehicles in China still use the voice command system we’re familiar with today.

Tesla Creating Own Assistant

According to Green's findings, it looks like Tesla may be rolling its own solution instead of integrating something like Amazon Alexa like Rivian has. Tesla created their own solution in China by using some of their own technology and several existing software solutions. However, some of them are only available in China so they don’t scale to support additional regions.

Grōk

The first thought that comes to mind is Tesla leaning on AI efforts by Grōk and xAI, which could help it support common knowledge questions and search the web for answers. However, that only gets Tesla partly there, as Alexa and Google Assistant already support a large ecosystem, one that may not be available if Tesla creates their own voice assistant. With Tesla’s solution, a driver may be limited to what devices they can control through the voice assistant, at least initially. Either way, just a more natural way to activate certain vehicle solutions will be an improvement over what’s available today. The ability to ask the assistant common questions will be the icing on top.

Wake Word

According to Green, the source code hinted at the voice assistant using a wake word, which would replace the need to press the scroll wheel on the steering wheel. Tesla has begun to use the left scroll wheel button for additional things lately such as wiper controls and a multi-function mode, so this may fit in with their plan.

It’s fun to speculate what the wake word would be or whether Tesla would add the ability to create your own. It could be something as simple as ‘Hey, Tesla’, ‘Grok’, or something more humorous as Tesla has a knack for. Unfortunately, there weren't any hints on what the actual wake word would be, but being able to set a destination, play a specific song or ask the assistant for the weather will be a much-needed improvement.

Supported Models

It's not clear which models Tesla would support a voice assistant, but with the release of software v12 with update 2024.14.3, Tesla is starting to leave more features out of older Intel-based vehicles. While a voice assistant may not necessarily be computationally heavy, it may depend on Tesla's implementation and whether voice commands are transcribed on device or carried over the internet for transcription.

Voice Model

In the software, there are references to Microsoft's text-to-speech technology and specifically to a voice named “Jenny Neutral.”

The “Jenny Neutral” voice seems like an acceptable voice, bringing a natural-sounding voice to Tesla's voice assistant, although it doesn't differ much from what you find on other assistants. You can view an example of Microsoft’s “Jenny Neutral” voice in the video below.

Tesla has been more mindful lately about adding information for unreleased features to its software to help prevent leaks, so by the time something like this is found by Green, it usually doesn't take long before it becomes available, although this could also make for an exciting Christmas present.

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