If the Smart Key does not operate normally, you can lock or unlock the door by using the mechanical key.
Move the release lever in the direction of the arrow (1) and then remove the mechanical key (2). Insert the mechanical key into the key hole on the door.
To reinstall the mechanical key, put the key into the hole and push it until a click sound is heard.
Hyundai Kona (OS) 2018-2024 Service Manual: Battery Sensor Repair procedures
Removal
1.
Disconnect the battery negative (-) cable.
2.
Turn the ignition switch OFF.
3.
Disconnect the battery (-) terminal (A).
Battery negative (-) terminal tightening nut :
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Hyundai Kona (OS) 2018-2024 Service Manual: General safety information and caution
Precautions
General Precautions
Please read the following precautions carefully before performing the airbag
system service.
Observe the instructions described in this manual, or the airbags could accidentally
deploy and cause damage or injuries.
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