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How to Change the Key Fob Battery in a Hyundai Tucson

Model: Hyundai Tucson TL, MK 3 - Years 2015-2021
Part: Key

To replace the key fob battery in the Hyundai Tucson, take the fob and locate the button to press to extract the emergency mechanical key. Remove it and use the key itself or a small screwdriver to pry open the shell. Gently open the fob into two parts. Inside, you will find the battery (usually a CR2032 type). Remove the old battery and insert the new one, ensuring the correct polarity. Close the fob by pressing the two halves together until they click and reinsert the mechanical key. Press a button to check that it works correctly.

Posted on 26 March 2026 by ScegliAuto

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