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: Compressor
Components and components location Component [THETA Engine] 1. Clutch Bolt 2. Limiter Bolt 3. Limiter & Hub Assembly 4. Snap Ring 5. Pulley 6. Compressor Assembly [LAMBDA Engine] 1. Clutch Bolt 2. Limiter Bolt 3. Limiter & Hub Assembly 4.Kia Stinger (CK) 2018-2023 Owner's Manual: Front Door Side Weatherstrip
Repair procedures Replacement 1. Loosen the front door checker (A) mounting bolt. Tightening torque : 19.6 - 29.4 N·m (2.0 - 3.0 Kgf·m, 14.5 - 21.7 lb·ft) 2. Detach the clips, then remove the front door side weatherstrip (A). Tightening torque : 19.