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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: Wide sunroof
If your vehicle is equipped with a sunroof, you can slide or tilt your sunroof with the sunroof control lever located on the overhead console. The sunroof can be operated for approximately 30 seconds after the Engine Start/Stop button is in the OFF position. However, if the driver’s door is opened, the sunroof cannot be operated even within the 30 second period.Kia Stinger (CK) 2018-2023 Owner's Manual: Engine Mechanical System
Repair procedures Compression Pressure Inspection If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure. 1. Warm up and stop engine. Allow the engine to warm up to normal operating temperature.