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How to Replace the Key Battery on a Mazda 2

Model: Mazda 2 MK 2, DH, DE - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
Part: Key

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Video tutorial

Replacing the key battery on a Mazda 2 and many other models from the same manufacturer is a straightforward task that only requires a small flat screwdriver. First, press the side button to release the physical key from its housing, where you will notice a small plastic catch that needs to be pressed with the tip of a screwdriver, allowing the remote to split into two parts.

At this point, the remote will be divided into one side containing the physical key mechanism and the other side containing the remote where the battery is housed. To access the battery, open the remote cover, which will be clipped in place; simply insert the screwdriver tip between the two joined parts to open them and access the battery.

Once the cover is open, you can proceed to replace the battery with a new one and reassemble everything in the reverse order of disassembly.


Updated on 19 March 2026 by ScegliAuto


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To reset the tyre pressure warning light on the Jeep Renegade, inflate the tyres until they reach the recommended pressure: this value is indicated on the sticker attached to the driver’s door pillar. Once the tyres are properly inflated, navigate through the menu that appears on the instrument cluster until you find the tyre pressure option. At this point, press and hold the OK button on the right side of the steering wheel to make the warning light disappear.

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by ScegliAuto

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