BYD SEAL 5 DM-i Bluetooth phone key: activation and offline use

The phone key uses two different connections. For initial activation in the BYD App, the car needs a good network signal. Once activated and connected over Bluetooth, the key can send supported commands such as locking and unlocking without an internet connection.

If activation fails, try moving the vehicle somewhere with better network coverage and repeat activation in the app. For everyday use, turn on your phone’s Bluetooth, approach the car and open the BYD App. The manual also describes a manual Bluetooth connection in the app.

If an already activated key won’t connect, try switching Bluetooth off and back on or restarting the app. Availability, supported commands and phone compatibility depend on the vehicle and market. Test your setup with the physical key handy before relying on the phone alone.

BYDbase editorial guide. This guide follows the GCC / Middle East & Africa manual. Check the edition and equipment for your own vehicle.

Source: BYD SEAL 5 DM-i Owner’s Manual (EN), EN_V1-MEA (06.2026), Mobile Phone Bluetooth Digital Key, printed pp. 155–156 (PDF pp. 156–157). The download requires a forum sign-in.