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Replacing the Key Battery on the Mazda CX-30

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

Video tutorial

In today's guide, we will see the instructions that will allow us to dismantle and replace the battery of the electronic key remote on the Mazda CX-30. First, take the remote in hand and start by removing the physical key, taking off the plastic rear cover; then pry on the sides of the front cover to remove it as well, accessing the battery compartment.

At this point, remove and replace the battery with a new one of the correct type (in this case, a CR 2032 3V); now reassemble the remote, following the video to the end!


Updated on 21 May 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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