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How to Replace the Key Fob Battery in the Fiat 500x

Model: Fiat 500 500 X - Years 2014-2022
Part: Key

To replace the battery in the Fiat 500x key fob, you will need a CR2025 battery. Follow this procedure: first, extract the emergency key. Once done, use the emergency key to pry open the smaller key slot. Once the key is open, leverage as shown in the video to remove the old battery and insert the new one. After inserting the new battery, close the key by applying light pressure with your fingers and then reinsert the emergency key. The procedure is simple and quick.

Updated on 28 June 2026 by ScegliAuto

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