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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: Power Tailgate Spindle
Repair procedures Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the rear pillar trim. (Refer to Body - "Rear Pillar Trim") 3. Disconnect the power tailgate spindle connector (A). 4. Using a screwdriver, lift the socket clips (A) up slightly.If the vehicle detected by sensors approaches your vehicle, the warning chime will sound and the warning light will blink on the outside rearview mirror. If the detected vehicle is out of detection range, moving away in the opposite direction or moving slow, or if the vehicle is right behind your vehicle, if the direction of the other vehicle is not heading towards your vehicle, the warning is cancelled.