In a move that could significantly simplify how drivers access their vehicles, Tesla appears to be laying the groundwork to support native digital car keys stored directly in smartphone operating systems, such as Apple Wallet. This development signals a shift away from the company's current app-dependent method.
Evidence Points to a New Digital Key System
Fresh evidence from a recent software update for the Tesla mobile app suggests the electric vehicle giant is actively developing this feature. A report by Not a Tesla App uncovered several code references to "Harmony Wallet Key Cards" within version 4.52.0 of the app. This discovery is crucial as it shows Tesla is rethinking its vehicle-to-mobile device connectivity to create a smoother, more integrated user experience.
Currently, Tesla's "Phone Key" system relies on a Bluetooth connection that requires the Tesla app to be running in the background on the user's phone. The proposed change would store the digital key within the phone's secure hardware at the system level, similar to how credit cards are stored in a digital wallet. This makes the key far more reliable and easier to access, as it would no longer depend on an app staying open to function correctly.
How Apple Car Keys Could Work with Tesla
The code specifically mentions Huawei's HarmonyOS, indicating the first iteration of this feature is likely designed for the Huawei Wallet on Huawei phones. Given HarmonyOS's popularity in China and Tesla's history of testing new software features there first, a Chinese rollout is probable before a global expansion.
While the code does not explicitly name Apple Wallet or Google Wallet, the underlying technology is expected to function similarly to Apple's existing digital car key system, introduced in 2020. This system allows users to unlock, lock, and start compatible cars using NFC, Bluetooth, or ultra-wideband technology. The keys are stored in a secure chip within the iPhone or Apple Watch, enabling features like Express Mode. This mode lets users unlock their car without needing to authenticate with Face ID, Touch ID, or a passcode, and the system can even work when the phone's battery is critically low.
A Growing Industry Trend
Tesla's exploration follows a clear industry trend towards native wallet integration. Earlier this month, electric vehicle maker Rivian added native support for both Apple Wallet and Google Wallet digital keys in its 2025.46 software update. In recent weeks, other major automakers like Porsche, Toyota, and General Motors have also begun adopting similar systems, highlighting a collective move towards more convenient, smartphone-centric vehicle access.
This potential update from Tesla represents a significant step in blending automotive and mobile technology, promising owners a more seamless and hassle-free way to interact with their cars using the devices they carry every day.
