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How to replace the battery of the Mazda CX 30 key.

Model: Mazda Cx 30 , MK 1 - Years: 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

Video tutorial

In the following guide you will find the description of the entire procedure you need to follow in order to replace the battery inside the key of your Mazda CX 30. First of all, you need to remove the back cover of the key, then also remove the front part of the cover and locate the depleted button battery.

Once you have found the battery, all you have to do is replace it with a new CR2032 battery and correctly reassemble both the front and back covers.

Test the key's functionality and you're done.


Posted on 29 September 2025 by ScegliAuto


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Watch the video!


by ScegliAuto

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