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How to Replace the Key Fob Battery in a Hyundai i20

Model: Hyundai I20 BC3, MK 3 - Years 2020-2026
Part: Key

To change the battery in the key fob of a Hyundai i20, press the release button and extract the emergency key. Use the same key or a flat screwdriver to pry open the fob at the seam. Carefully separate the two halves and remove the dead button battery, typically a CR2032 model. Insert the new battery, ensuring the polarity is correct, with the symbol (+) facing upwards. Close the fob until it clicks together and reinsert the key. Check that the controls function correctly.

Posted on 25 February 2026 by ScegliAuto

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