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How to Replace the Key Fob Battery of a Citroën C4 Cactus

Model: Citroen Cactus - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020
Part: Key

Video tutorial

To replace the key fob battery of a Citroën C4 Cactus, take the fob and locate the slot along the edge of the casing. Insert the tip of a small flat screwdriver into the slot and gently pry to separate the two halves of the shell.

Once the fob is open, locate the battery inside the compartment. Remove the flat battery by lifting it from its seat and insert a new battery of the same type, ensuring the correct polarity.

After placing the new battery, bring the two parts of the shell back together and press them until they click back into position. Press one of the buttons on the fob to check that the key works correctly.


Posted on 9 October 2026 by ScegliAuto


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