Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Replace the Key Fob Battery of the Mazda 3

Model: Mazda 3 BL, MK 2 - Years 2009-2013
Part: Key

First, push the tab on the back to unlock the extraction of the metal key inside the remote. Use a screwdriver to lever on the two recessed edges to initially separate the two parts of the key. Now, use a card to continue separating them until you can completely remove the rear panel. You can now remove the battery cover and replace it with a new one. Finally, retrace your steps to reassemble the various pieces.

Updated on 24 February 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Key Battery on a Mazda 3
How to Replace the Key Battery on a Mazda 3
Mazda 3 (2003-2009 / MK 1, BK) How to replace the battery in the key fob for a Mazda 3? Here's how: take your key fob and press the button to release the metal key. Once extracted,…
How to replace the battery of the Mazda 3 key.
How to replace the battery of the Mazda 3 key.
Mazda 3 (2013-2019 / BM, MK 3, BN) Thanks to the following guide, you will be able to replace the button battery inside the key of your third generation Mazda 3 in just a few seconds. …
How to replace the battery of the Mazda 3 remote control.
How to replace the battery of the Mazda 3 remote control.
Mazda 3 (2013-2019 / BM, MK 3, BN) Replacing the battery of the Mazda 3 remote control is very simple. To replace the battery, you will need to: - Open the remote control by inserting …

Other guides you may be interested in

How to Remove the Headlight Bulb on a Honda Civic

Are the front headlight bulbs on your Honda Civic faulty? Follow this instructional video for the disassembly process. Open the bonnet of the engine compartment, remove the inspection caps from the headlights using a screwdriver, detach the bulb holders from the headlight, and disconnect the respective power connectors. Replace the damaged bulbs with new ones of the same size and voltage. After replacing the bulbs, reinstall the bulb holder in the headlight housing. Finally, close the rear of the headlights with the inspection caps. Test the lights to ensure they are functioning correctly.

Watch the video!


by ScegliAuto

More videos