In the first beta of iOS 13.4, references to a new CarKey feature was discovered that would allow owners of vehicles with NFC to lock/unlock and start their car using their iPhone. In the second beta of iOS 13.4, more details about the feature have been revealed.
The new CarKey feature will reside in the Wallet app and will also allow you to share the keys with your friends or family. As the updated wording surrounding the feature in iOS 13.4 beta 2 reveals, users will be able to send CarKey to any contact over an iMessage conversation. This will allow that contact to lock/unlock your vehicle or start it using their iPhone or Apple Watch.
Whenever you send someone a CarKey, this is the notification that they will receive:
[Vehicle Owner] invited you to use their [Vehicle Model] with unlock & drive access. This allows you to use your iPhone and Apple Watch to unlock/lock the car, start the engine and drive.
To access CarKey, one will need to verify their identity using Face ID, Touch ID, or by entering their iPhone’s passcode. CarKey will only work with vehicles that ship with NFC. Apple will likely partner with car companies for this feature. At launch, this feature will likely only support a handful of vehicles, though its adoption among car manufacturers will gradually pick up as it has with CarPlay.
Apple is a member of the Car Connectivity Consortium (CCC) which developed an NFC-based Digital Key 2.0 specification and made it available for others in 2019. The consortium is already working on Digital Key 3.0 specification that will make use of Bluetooth Low Energy and Ultra Wideband. Apple already includes a U1 Ultra Wideband chip on the iPhone 11 and iPhone 11 Pro series.[Via MacRumors]