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

Mazda: how to replace the remote control battery in a few steps.

Model: Mazda 2 DJ, MK 3 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

See other generations:
Video tutorial

To replace the battery in the Mazda remote, work with the key on a stable surface. First, extract the emergency mechanical key from the remote using the release slider on the casing.

Then locate the side opening slot and insert a small flathead screwdriver (or a plastic lever), making a slight rotation to separate the two halves of the remote without forcing the clips. Once open, carefully remove the old button cell and check the code printed on the battery to purchase the same equivalent model.

Insert the new battery, respecting the polarity indicated in the compartment (usually with the “+” side facing up), ensuring that it is securely seated in the clips. Close the two parts of the remote by pressing along the perimeter until all the clips snap back into place, then reinsert the mechanical key. Finally, test the buttons and the central locking/unlocking: if the Mazda remote responds correctly, the replacement is complete.


Posted on 23 November 2025 by ScegliAuto


Related tutorials

How to Replace the Battery of the Mazda 2 Remote?
How to Replace the Battery of the Mazda 2 Remote?
Mazda 2 (2014-2023 / DJ, MK 3) To replace the battery of the Mazda 2 remote, press the button located on the front of the remote to lift the key; then, lever it in its housing to s…
How to Replace the Key Fob Battery on a Mazda 2?
How to Replace the Key Fob Battery on a Mazda 2?
Mazda 2 (2007-2014 / MK 2, DH, DE) To replace the battery in the key fob of a Mazda 2, lift the key to leverage it inside its housing. This will allow you to completely detach the key …
How to replace the remote battery on the Mazda 2?
How to replace the remote battery on the Mazda 2?
Mazda 2 (2014-2023 / DJ, MK 3) In this tutorial, you will see how to replace the remote battery on the Mazda 2, an extremely simple and quick operation. To do this, you will need a…

Other guides you may be interested in

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos