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 Battery on the Mazda CX-3

Model: Mazda Cx 3 MK 1 - Years 2015-2023
Part: Key

Replacing the battery in your Mazda CX-3 key is very simple, and with this mini guide, you will complete the entire operation in just a few seconds. First, locate and press the small button on the back of the cover to remove the emergency key. Then, fully open the key (you can use a flat screwdriver to assist) and proceed to remove the old battery. Once done, insert the new battery (model CR2025) and correctly reassemble the cover. Finally, test the operation of your key.

Updated on 18 July 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Replace the Key Battery on a Mazda CX-3
How to Replace the Key Battery on a Mazda CX-3
Mazda Cx 3 (2015-2023 / MK 1) This video shows the procedure for replacing the key battery on a Mazda CX-3. First, remove the emergency key. Then, using a flat-head screwdriver, p…
How to Reset the "Service" Light on a Mazda CX3
How to Reset the "Service" Light on a Mazda CX3
Mazda Cx 3 (2015-2023 / MK 1) Before you can start, sit in the driver’s seat of your Mazda CX3 and activate the instrument panel. Begin by selecting and confirming the "Applicatio…
How to reset the service indicator on the Mazda CX3
How to reset the service indicator on the Mazda CX3
Mazda Cx 3 (2015-2023 / MK 1) To properly and safely complete the manual reset of the service light on your Mazda CX3, you simply need to follow the procedure described in our new…

Other guides you may be interested in

How to Check the Oil Level on a Jeep Renegade?

To check the oil level on a Jeep Renegade, you need to open the bonnet to access the components inside the engine bay: on the lower left side of the engine block, you will find the dipstick for checking the level. This should be pulled out and thoroughly cleaned with a cloth: once cleaned, reinsert it back into its tube and pull it out immediately after. This way, you can check that the oil mark is between the minimum and maximum levels; finally, you can place the dipstick back in its tube.

Watch the video!


by ScegliAuto

More videos