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How to change the battery of the Mazda CX-3 key.

Model: Mazda Cx 3 MK 1 - Years: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

Video tutorial

In this video, we see how to change the battery of the Mazda CX-3 key: as the YouTuber indicates with his advanced computer graphics, on the back of the remote control we have a small button that will allow us to remove the security key; then with a small screwdriver, we will lever on the sides of the body, until we remove the cover of the remote control.

The battery is located in the thickest part, under a black plastic cover.

It is a common CR2025, which we can easily find at any supermarket or electronics store, for a few euros. Let's replace it, paying attention to the polarity, and then put the plastic cover back in place.

Close the lid and put the security key back in place.


Posted on 6 August 2025 by ScegliAuto


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