Hyundai Kona: Smart key / Battery replacement

If the Smart Key is not working properly, try replacing the battery with a new one.

Battery Type: CR2032

To replace the battery:

1. Remove the mechanical key.
2. Use a slim tool to pry open the rear cover of the smart key.
3. Remove the old battery and insert the new battery. Make sure the battery position is correct.
4. Reinstall the rear cover of the smart key.

If you suspect your smart key might have sustained some damage, or you feel your smart key is not working correctly, it is recommended that you contact an authorized HYUNDAI dealer.

Information

An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulations.

Smart key precautions
The smart key may not work if any of the following occur: The smart key is close to a radio transmitter such as a radio station or an airport which can interfere with normal operation of the trans ...

Immobilizer system
The immobilizer system protects your vehicle from theft. If an improperly coded key (or other device) is used, the engine’s fuel system is disabled. When the ignition switch is placed in the ON pos ...

Other information:

Hyundai Kona (OS) 2018-2020 Service Manual: Front Wheel Speed Sensor Repair procedures
Removal 1. Turn the ignition switch OFF and then disconnect the negative (-) battery cable. 2. Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. 3. Remove t ...

Hyundai Kona (OS) 2018-2020 Service Manual: Seat Heater Repair procedures
Inspection Front Seat Heater 1. Check for continuity and measure the resistance between terminals No 3 and No 6. Standard value Driver / Assists (cushion + back) : 2.00Ω±10 ...

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