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

Tesla is improving its phone key with ultra-wideband support

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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 to Add Restricted Driver Profiles for Safer Teen Driving

Tesla is set to introduce restricted driver profiles in an upcoming update, aiming to improve safety for teenage drivers. Tesla hacker @greentheonly, also known as Green, recently decompiled the 2024.14.3 update, revealing the change.

Restricted Driver Profiles

Over the years, many people have asked Tesla to bring in restricted driver profiles, similar to Tesla’s currently existing Valet Mode. Valet Mode already serves to restrict the car’s maximum speed, reduces acceleration, and disables the use of Autopilot and FSD. The new restricted profiles will let you apply certain restrictions to driver profiles without the full-fledged restrictions of Valet Mode which also limits HomeLink, GPS history and more.

What Restricted Profiles Could Do

From Green’s post on X, restricted driving profiles will display “training wheels” next to the profile, indicating their usage for new drivers. The ability to add a maximum speed and enforced chill mode are expected to be part of the feature package.

Other restrictions that could also be implemented could include disabling the use of Autopilot and FSD, or perhaps requiring certain features to remain disabled or enabled, like disabling “Joe Mode”, frunk or glove-box access, summon, and locking Sentry Mode to active.

Given how easy it is to swap profiles on a Tesla, Tesla would need to prevent a user from switching from a restricted profile to a regular profile. Tesla could do this in a variety of ways, such as tying driver profiles to a key card or mobile device and requiring a PIN code to exit the restricted profile, much in the same way they do it in Valet Mode.

Enhanced Safety Implementations

Additional safety measures could include alerts that notify parents or guardians when the vehicle reaches its destination or exceeds set speed limits. Given that a Tesla can automatically call emergency services in a crash, this could be an excellent feature for ensuring the safety and security of young drivers on their own for the first time.

Release Date

Elon Musk has previously mentioned that FSD V12.4 is being rolled out sometime shortly, and given that Green has found this 2024.14.3, it could be coming very soon. The latest Tesla update being rolled out now is 2024.14.6.

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Tesla Intel Vehicles Receive Some of the Visual Updates in Spring Update 2024.14

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Tesla announced last month that its Spring Update, version 2024.14, would come with visual updates, but that they would be exclusive to the Model 3 and Model Y with Ryzen processors.

Tesla has slowly started rolling out update 2024.14, but until last night, it was only available to vehicles with the Ryzen processor.

We now have our first glimpse into update 2024.14 on vehicles that include the older Intel Atom processor.

Visual Updates

According to Tesla, none of the visual updates would be available on vehicles with Intel infotainment units, however, it looks like those vehicles will be receiving some of the features as well.

The Visual Updates include four items:

• A new immersive full-screen visualization while parked that features the vehicle front and center.

• A new media player that has a better layout and includes more controls and a new minimized state.

• Expandable Autopilot visualizations that are available to everyone include a smaller map in the top-right corner.

• And a redesigned and more compact drive mode strip for vehicles for Auto Shift, which doesn't apply to Intel vehicles.

New Parked Visualization

This is probably the biggest feature just because it’s executed so beautifully. Unfortunately, it’s not available on vehicles with MCU 2 (Intel Atom)… at least not at this time.

It appears that Tesla may be using a higher-resolution 3D model or different shaders to create this new visualization. This could be the reason for its exclusivity to the faster AMD Ryzen processor. However, it could just take some time for Tesla to optimize it for Intel Atom processors or use a different model that is more suitable for the older processor.

The Model S and Model X are also not receiving this new parked visualization at this time. Although the Model S and Model X use the instrument cluster for visualizations, given the appeal of the new parked visualization, we wouldn't be surprised if it became available on the Model S/X in the future as well.

The Cybertruck already uses the new parked visualization, although it doesn't include an instrument cluster like the Model S/X.

New Media Player

Tesla's new media player on the Model 3/Y

The improved media player that exposes additional controls and has a new minimized state, is arriving on vehicles with Intel processors.

Tesla included the new audio player as part of the Visual Updates that would be exclusive to AMD Ryzen vehicles, but the new media player on Intel appears to look and function exactly like it does on AMD vehicles. If you haven’t seen the new media player, take a look at our in-depth look at Tesla’s new audio player.

Expandable Autopilot Visualizations

The new, expandable Autopilot visualizations are also available on Intel vehicles. Although users with FSD already had full-screen visualizations, Tesla is bringing over additional features. This includes everything we've seen on AMD vehicles, including the new media player, the 'Navigate to' module, and the map preview in the corner of the screen.

For owners without FSD, this will bring full-screen visualizations to Autopilot for the first time. The full-screen visualization will look and function much like it does in Europe. It includes all of the new controls, improved vehicle detection, and the ability to display turn signals, but it won't display everything FSD does, including curbs and drivable areas.

Update: It looks like if you have FSD then you’ll have the new full-screen visualizations, but a user is reporting that he didn’t receive them on his Intel vehicle without FSD.

Other Updates

While Intel-based vehicles aren’t receiving all of the visual updates as expected, they are receiving a lot of the other functionality in update 2024.14, including Audible, Sentry Mode Previews, Trip Progress Bar, Spotify improvements, Better Route Available and many more.

Final Thoughts

Although this update doesn't bring the most appealing part of the Spring Update to Intel vehicles, it brings more than was expected.

The new parked visualization is the most exciting, but arguably least useful aspect of the new update. While it's beautiful and fun to play with, the new media player that features quick access to the most used controls is a much more useful addition.

The improved full-screen driving visualizations being available to everyone with the map in the corner is also a nice addition.

While we're not seeing the new parked visualization available on older vehicles with this update, it may arrive later once Tesla has a chance to optimize it for the slower Intel processor.

If you haven’t checked out Tesla’s new Spring Update, take a look at some videos of the best features in Tesla’s 2024.14. update.

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