The battery sensor is deactivated, when the battery is disconnected from the negative pole for maintenance purpose.
In this case, the ISG system is limitedly operated due to the battery sensor deactivation. Thus, the driver needs to take the following procedures to reactivate the battery sensor after disconnecting the battery.
Hyundai Kona (OS) 2018-2024 Service Manual: Side Impact Sensor (SIS) Description and operation
Description
•
Side Impact Sensors (SIS), each installed on the center part of the
right and left front door modules and the right and left center pillars,
detects side impact during collision.
•
The SRSCM uses the signals f ...
Hyundai Kona (OS) 2018-2024 Service Manual: Lumber Support Units Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front seat assembly.
(Refer to Body - "Front Seat Assembly")
3.
Remove the seat back.
...