Contents:

The battery is in the trunk under the compartment cover.
When replacing the battery, disconnect the negative (-) cable (1) and remove the positive (+) battery fuse box (2).
Remove the battery mounting bracket (3).
WARNING - Touching metal surfaces in the trunk under the compartment cover

Do not touch metal surfaces in the trunk under the compartment cover while the engine is operating or hot. Doing so could result in serious personal injury. Turn the engine off and wait until it cools down or wear gloves to replace the battery from the luggage room.
Your vehicle has a maintenance-free, calcium-based battery.
When recharging the battery, observe the following precautions:
Reset items
Items should be reset after the battery has been discharged or the battery has been disconnected.
Kia Stinger (CK) 2018-2023 Owner's Manual: Parking Release Actuator (Parking Release Cable)
Components and components location Components 1. E-Shifter 2. Parking release actuator 3. Parking release cable 4. Parking release lever Schematic diagrams Circuit Diagram Repair procedures Removal 1. Remove the parking release cable after loosening the fastener (A).Kia Stinger (CK) 2018-2023 Owner's Manual: Emergency Signal System
Description and operation Description Introduction of quick brake warning system (ESS) In case of quick brake by driver, the brake lamp or turn signal is blinked to warn against the vehicle at rear. 1. Basic function (Blinking the brake lamp/emergency lamp) – Operation condition: In case of quick brake or operation of ABS above in a certain speed – Releasing condition: In case of stopping the quick brake or releasing the ABS operation 2.