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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: Engine Oil and Filter
Repair procedures Inspection [Theta-II 2.0 T-GDI / Lambda-II 3.3 T-GDI] Engine Oil Level Be sure that the vehicle is on level ground. 1. Warm up and stop the engine, and then wait for 5 minutes. 2. Turn the engine off and wait for a few minutes (about 5 minutes) for the oil to return to the oil pan.Kia Stinger (CK) 2018-2023 Owner's Manual: Drive Belt Tensioner
Repair procedures Removal and Installation 1. Remove the drive belt. (Refer to Drive Belt System - "Drive Belt") 2. Remove the drive belt auto tensioner pulley (A). Tightening torque : 53.9 - 63.7 N·m (5.5 - 6.5 kg·m, 39.8 - 47.0 lb·ft) Tensioner pulley bolt is left-hands screw.