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How to Replace the Key Fob Battery in a Hyundai i20

Model: Hyundai I20 MK 3, BC3 - Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

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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by ScegliAuto

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