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Illuminated engine start/stop button

Whenever the front door is opened, the engine start/stop button will illuminate for your convenience. The light will go off after about 30 seconds when the door is closed.
When all doors are closed and you lock the vehicle by using the transmitter or the smart key, the light will go off immediately.
Kia Stinger (CK) 2018-2023 Owner's Manual: DC DC converter
Components and components location Components Location Description and operation Description Due to the considerably more frequent occurrence of starting operations, the electrical load that occurs often leads to voltage dips in the vehicle network.In order to stabilize the power supply for certain voltage-sensitive electrical components, a DC/DC converter is used in conjunction with the ISG function.Kia Stinger (CK) 2018-2023 Owner's Manual: Front Seat Assembly
Components and components location Component Location 1. Front seat assembly Repair procedures Replacement Be careful as the seat back may touch peripheral components such as the sunvisor if it is folded forward with its headrest and seat adjusted high and the seat moved forward.