
Your vehicle is equipped with the emergency liftgate safety release lever located on the bottom of the liftgate. When someone is inadvertently locked in the luggage compartment, the liftgate can be opened by doing as follows:
1. Remove the cover.
2. Push the release lever to the right.
3. Push up the liftgate.
WARNING
WARNING
NEVER allow anyone to occupy the rear cargo area of the vehicle at any time. If the liftgate is partially or totally latched and the person is unable to get out, serious injury or death could occur due to lack of ventilation, exhaust fumes and rapid heat build-up, or because of exposure to cold weather conditions. The liftgate is also a highly dangerous location in the event of a crash because it is not a protected occupant space but is a part of the vehicle’s crush zone.
WARNING

Do not grasp the part supporting the liftgate (gas lifter), as this may cause serious injury.
Kia Stinger (CK) 2018-2023 Owner's Manual: Accelerator Position Sensor (APS)
Specifications Specification Accelerator Position Output Voltage (V) [Vref = 5V] APS1 APS2 C.T 0.7 - 0.8 0.33 - 0.43 W.O.T 3.99 - 4.23 1.94 - 2.18 Description and operation Description Installed on the accelerator pedal module, the Accelerator Position Sensor (APS) detects the rotation angle of the accelerator pedal.Repair procedures Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the luggage side trim. (Refer to Body - "Luggage side trim") 3. Disconnect the ECS control unit connector (A). 4. Loosen the ECS control unit bracket nut and then remove the ECS control unit (A).