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How to Replace the Key Battery on a Ford Focus

Model: Ford Focus MK 3 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Key

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Video tutorial

Simply follow this brief guide to understand how to carry out the replacement entirely on your own. First, equip yourself with a flathead screwdriver to separate the two halves of the key, the front and the back. Once done, you will immediately see the battery slot.

Now, remove the exhausted battery and install the new battery, making sure to pay attention to the orientation in which you install it. Now simply retrace the steps to reassemble the two halves of the key.


Updated on 24 February 2026 by ScegliAuto


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by ScegliAuto

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