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Hyundai previews digital key for 2020 Sonata

Drivers will be able to enter and start the car via mobile app.

Hyundai has previewed a digital key app that will make its debut on the 2020 Sonata.

The system uses a near-field communication (NFC) antenna in the driver's door handle, enabling the car to detect an authorized NFC-capable smartphone. A second NFC antenna is located in the wireless charging pad in the center console.

Together, the pair of antennae allow drivers to enter the vehicle, start the engine, and drive away via a mobile device rather than requiring a physical key at all times.

The phone can then be used to control vehicle systems via Bluetooth Low Energy communication, unlocking/locking the doors or starting the engine within a range of approximately 30 feet of the car.

The digital key can be authorized for up to four users, enabling easier sharing between family members. Each user's preferred settings, such as mirror alignment and seat positioning, are automatically adjusted when entering the vehicle.

The technology will be demonstrated later this month in New York, while the 2020 Sonata is scheduled to arrive in showrooms this fall.

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