Digital Key Application
To use Hyundai Digital Key mobile app, you should install the Hyundai Digital Key app on your Android phone. Search ‘Hyundai digital key’ in the Google Play Store and download the app. Please refer to the detailed manual of the digital key app. The option can be found under the following app menu:

Please review the contents of the manual before using the app.
This service is only available for Android smartphones. Please confirm supported/compatible devices on our website.
WARNING
Delete Digital Key Settings When Purchasing a Used Vehicle
If any of the digital key (smartphone key or card key) is already registered when you press ON button after unlocking the doors, the message ‘Digital key(s) active’ appears on the instrument cluster once. If you sell your vehicle or purchase a used Hyundai vehicle equipped with the Digital Key feature, you should confirm the message and delete the registered smartphone key and card key. For more information, please contact the Hyundai Customer Care Center. If the card key does not work properly, please delete the card key and register the smartphone key and re-register the card key.
For vehicle maintenance
If you need to have your Digital Key System repaired or replaced please ensure your Smartphone Key is still active. You may have to pair your phone again.
In some instances you may have to re-initialize your Digital Keys using the Hyundai Digital Key mobile app.
Immobilizer System
Digital key (smartphone) NFC
functionHyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Repair procedures
- Removal
1.Turn the steering wheel so that the front wheels can face straight ahead.
2.Turn the ignition switch OFF and disconnect the battery negative (-) cable.
3.Remove the drive airbag module.(Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")
4.Disconnect the steering ...
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Rear Door Inside Handle
- Replacement
1.Disconnect the negative ( - ) battery terminal.
2.Remove the rear door trim.(Refer to Rear Door - "Rear Door Trim")
3.Loosen the mounting screws and remove the rear door inside handle (A).
4.To install, reverse removal procedure.
• Make sure the door lo ...