The Wallet app allows you to add and share car keys for certain vehicles. You can add a car key by logging into the vehicle manufacturer’s app or entering a pairing code in the Wallet app, authenticate the vehicle as your own vehicle, and pair your device with the vehicle. If successful, your device will send Apple a one-time owner redemption token. Apple will use the redemption token, information about your Apple account and device, and your location at the time of configuration (if location services are enabled) to prevent fraud.
Owners will be able to share the digital CarKey with others, which is useful in the case of valet parking and can also be used if a friend needs to borrow a car. Although there are car owners who can use the “Quick Mode”, where you can use Face ID or Touch ID to access CarKey via biometric authentication.
Apple will work with car manufacturers to develop CarKey, which may be a factory-installed option similar to CarPlay. CarKey requires NFC to work, so this needs to be implemented by carmakers.