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How to Replace the Key Battery of the Honda Civic

Model: Honda Civic MK 9 - Years 2012-2015
Part: Key

If the smart key of your Honda Civic has suddenly stopped working, you may need to replace the battery. In this mini guide, you will learn how to perform the replacement correctly. First, fully remove the physical emergency key from the cover. Then, using the same key, open the cover and proceed to replace the button battery. Once this operation is complete, simply reattach the cover and insert the emergency key back in.

Updated on 20 May 2026 by ScegliAuto

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