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: Shift Cable
Components and components location Components 1. Manual control lever 2. Shift cable 3. Shift lever assembly 4. Knob Repair procedures Removal 1. Shift the gear to "N". 2. Loosen the nut (A) and remove the shift cable fixing clip (B).Kia Stinger (CK) 2018-2023 Owner's Manual: How to use the Smart Liftgate
The liftgate can be opened with notouch activation satisfying all the conditions below. After 15 seconds when all doors are closed and locked Positioned in the detecting area for more than 3 seconds. ✽ NOTICE • The Smart Liftgate does not operate when: - The smart key is detected within 15 seconds after the doors are closed and locked, and is continuously detected.