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 Remote Key Battery on the Mazda 3?

Model: Mazda 3 MK 4, BP - Years 2019-2026
Part: Key

Replacing the battery in the Mazda 3 remote key, as shown in this tutorial, is an extremely simple and quick operation. To do this, you will need a small flathead screwdriver and a replacement CR1620 battery. Start by extending the emergency metal key by pressing the designated button, then lever the screwdriver in the indicated slot located inside the key housing. Once the two halves of the remote are separated, you can open the rear cover, remove the old battery, and insert the replacement.

Updated on 28 June 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Remote Battery of the Mazda 3
How to Replace the Remote Battery of the Mazda 3
Mazda 3 (2013-2019 / MK 3, BN, BM) Replacing the battery of the Mazda 3 remote is very simple. To replace the battery, you need to: - open the remote by inserting a flat-head screwdriv…
How do you replace the battery of the Mazda 3 remote control?
How do you replace the battery of the Mazda 3 remote control?
Mazda 3 (2013-2019 / MK 3, BN, BM) The procedure for replacing the battery of the Mazda 3 remote control is done by removing the key located inside the device: once the key has been re…
How to Replace the Battery in a Mazda 3 Remote Key?
How to Replace the Battery in a Mazda 3 Remote Key?
Mazda 3 (2013-2019 / MK 3, BN, BM) To replace the battery in a Mazda 3 remote key, detach the cover on the back of the remote by simply pulling it off. Now, using a screwdriver, pry un…

Other guides you may be interested in

    Frequently Asked Questions

    • Mazda 3 2019-2026 - What does the wrench light on the Mazda 3 indicate? Read answer

How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

Watch the video!


by ScegliAuto

More videos