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How to Replace the Key Battery on a Fiat 500

Model: Fiat 500 312 - Years 2007-2024
Part: Key

Follow these steps to open and replace the remote key battery on a Fiat 500. Take the remote and press the metal key release button. Once the metal key is out, use a screwdriver to unscrew the tiny screw located in the key cover (where the metal key fits). Remove the battery holder, then replace the battery using a small screwdriver (get a new one of the same size and voltage). Fit the new battery in the compartment and finally in the cover. Check the remote's proper functioning by pressing the buttons.

Updated on 15 March 2026 by ScegliAuto

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