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How to Replace the Key Battery for the Mazda CX-9

Model: Mazda Cx 9 TC - Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Part: Key

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Video tutorial

In this new mini guide dedicated to your Mazda CX-9, discover how to properly change the battery in the smart key. To complete the entire operation correctly, you only need a small flathead screwdriver. First, remove the back cover, then use the screwdriver to detach the metal part located at the bottom of the cover.

At this point, also remove the front cover and take out the battery cover. Finally, remove the dead battery and proceed with the actual replacement.


Updated on 7 June 2026 by ScegliAuto


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How to Open the Fuel Filler Flap in the Hyundai i30?

In this tutorial, you will learn how to open the fuel filler flap in the Hyundai i30, a very simple operation that follows the typical procedure of most vehicles. First, unlock the locks using the designated button on the remote, then open the driver's door, locate the release lever on the left side of the seat, and operate it. Next, move to the fuel filler flap, open it completely, unscrew the cap, and refuel as needed. To close the flap, simply press it gently.

Watch the video!


by ScegliAuto

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