Digital Key 2 functionality on your Kia EV2 may occasionally experience interruptions or fail to operate if any of the following technical conditions occur:
The internal battery of your smartphone or the main 12V vehicle battery is completely discharged or critically low
Near Field Communication (NFC) or Bluetooth wireless modules are disabled within your smartphone system settings
A payment credit card is stored directly against the back glass of your smartphone, or you are using a metallic enclosure or overly thick protective phone case
The physical card key is packed tightly alongside other magnetic cards, leather wallets, or metallic card holders during operation
Strong electromagnetic interference is present near high-voltage power lines, broadcasting towers, or other electronic infrastructure
There may be a communication error with Digital Key 2 NFC function if the metallic cover or communication device is attached to the smartphone. If there is a malfunction of Digital Key 2, remove the cover attached to the smartphone and try again.
Remote vehicle control and seamless automated recognition via your smartphone may be restricted under specific operating scenarios:
Core system background tasks of the mobile operating system are actively prioritizing high-priority voice calls, emergency communications, high-bitrate audio streaming, or secure NFC contactless financial transactions
Wireless Bluetooth earphones or headsets are actively handling telephone calls, emergency voice channels, or multimedia audio streams
The background execution privileges of the Digital Key 2 mobile application are being restricted by aggressive battery optimization settings or manufacturer-specific app launch priority policies
NOTE
If you carry a UWB-enabled smartphone registered as a digital key within the Bluetooth connection range of your Kia EV2 for an extended period, low-voltage battery consumption may occur due to continuous background handshaking.
To prevent unnecessary 12V battery drain when parked near your vehicle, turn off the passive entry feature of the digital key directly from within your smartphone wallet application settings.
Used Vehicle/Digital Key 2 Maintenance
Immobiliser systemThe vehicle has a passenger sensing system for the front outboard passenger position. The passenger airbag status indicator will light on the overhead console when the vehicle is started.

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