Contents:

The rear seat is equipped with headrests in all the seating positions for the occupant's safety and comfort.
The headrest not only provides comfort for passengers, but also helps protect the head and neck in the event of a collision.
For maximum effectiveness in case of an accident, the headrest should be adjusted so the middle of the headrest is at the same height of the center of gravity of an occupant's head. Generally, the center of gravity of most people's heads is similar with the height as the top of their eyes.
Also, adjust the headrest as close to your head as possible. For this reason, the use of a cushion that holds the body away from the seatback is not recommended.
Adjusting the height up and down

To raise the headrest, pull it up to the desired position (1). To lower the headrest, push and hold the release button (2) on the headrest support and lower the headrest to the desired position (3).
Removal and reinstallation

To remove the headrest, raise it as far as it can go then press the release button (1) while pulling the headrest upward (2).
To reinstall the headrest, put the headrest poles (3) into the holes while pressing the release button (1). Then adjust it to the appropriate height and ensure that it locks in position.

To use the armrest, pull it forward from the seatback.
Kia Stinger (CK) 2018-2023 Owner's Manual: Fuel Pressure Control Valve (FPCV)
Specifications Specification Item Specification Coil Resistance (Ω) 0.47 - 0.53 [20°C(68°F)] Description and operation Description Installed on the high pressure fuel pump, the Fuel Pressure Control Valve controls flow of fuel into the injectors in accordance with the ECM signal calculated based on various engine conditions.Kia Stinger (CK) 2018-2023 Owner's Manual: Crankshaft Position Sensor (CKPS)
Specifications Specifications Item Specification Type Magnetic field sensitive Output Voltage (V) 4.75 - 5.25 (25°C) Input Voltage (V) 0.6 - 4.5 Air Cap (mm) 0.5 - 1.5 Description and operation Description Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system.