Kia Sedona: Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace the battery, contact an authorized Kia dealer.
1. Remove the mechanical key.
2. Pry open the rear cover.
3. Replace the battery with a new battery (CR2032). When replacing the battery, make sure the battery position.
4. Install the battery in the reverse order of removal.

Smart key precautions
Smart key immobilizer systemLane Departure Warning System (LDWS) Unit Components and Components Location
Components
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Turn signals and lane change signals
The ignition switch must be on for the turn signals to function. To turn on the
turn signals, move the lever up or down (A). The green arrow indicators on the instrument
panel indicate which tur ...