Kia Sedona: Battery replacement
The transmitter uses a 3 volt lithium battery which will normally last for several years. When replacement is necessary, use the following procedure.
1. Insert a slim tool into the slot and gently pry open the transmitter center cover.
2. Replace the battery with a new battery (CR2032). When replacing the battery, make sure the battery is positioned battery.
3. Install the battery in the reverse order of removal.
For replacement transmitters, see an authorized Kia dealer for transmitter reprogramming.

Transmitter precautions
Immobilizer systemCowl Side Trim Repair procedures
Replacement
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When prying with a flat-tip screwdriver, wrap it with
protective tape, and apply protective tape around the related parts, to
prevent damage. ...
Manifold Absolute Pressure Sensor (MAPS) Schematic Diagrams
Circuit Diagram
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