Hyundai Digital Key is a dedicated smartphone app available on Elantra Limited and SEL models with Premium Package. The app allows smartphones to lock and unlock the vehicle, activate the panic alert and start the engine using Bluetooth Low Energy (BLE) communication and Near Field Communication (NFC).

Not only does Hyundai Digital Key allow owners to leave traditional car keys at home, it can securely share keys with family and friends. The level of access can be tailored to each shared user for a defined period. The primary driver can determine duration of vehicle use or limit the use to only certain features when loaning the vehicle, and, of course, keys can be revoked remotely. Each Elantra still comes with traditional keys. Digital Key is compatible only with phones using the Android operating system.