Mazda Key Fob Battery Replacement – How to Replace, Costs, Size, What to Do When the Battery is Dead and More.
Most Mazda models made after 2010 use a key fob, or a push to start remote key technology. This type of key has advanced security features, as well as built-in keyless entry and more.
Prefer to watch a video how to replace the battery? Click here to see a list of Mazda key fobs and choose yours.
This type of key fob is battery operated. Once in a while, there are some issues with the key fob because of this battery. We will go over some important information and a few tips about what to do when the battery is dead, how to change the battery, cost, and some technical information.
Most of Mazda model’s key fobs use the same battery which is CR2025. This battery is very common and you can find it in most hardware stores, AutoZone, locksmith shop, and online. You can order it here.
Price of Mazda key fob battery: Usually less than $6
We also recommend getting a cover for the key fob to keep it in better condition. Mazda key fob cover cost about $10-$15 and definitely worth the price. You can order it online here
Before we get into some specific information, here is some useful information you must know:
First, if you are locked out of your car because the key fob battery is dead you can use the emergency key provided with the key to unlock the car door.
How to start Mazda with a dead key fob?
You can start your Mazda by pushing the “Start” button with your key fob. The car’s computer recognizes the chip inside the key fob and authorizes the process.
This way, you will be able to start your vehicle EVEN if the key fob battery is dead.
Technical information for CR-2032 battery: (Click to get it online)
Diameter (mm): 20
Height (mm): 3.2
Voltage (V): 3
Technical information for CR-2025 battery: (Click to get it online)
Diameter (mm): 20
Height (mm): 2.5
Voltage (V): 3
Programming information:
After replacing the key fob battery, there is no need to do any special programming. The key fob should work as usual.
However, if you just bought a new key fob, you will need to have it programmed to start the car. This can be done by an automotive locksmith or a dealership. Click here for more information about key fob programming.
Below, are Mazda key fobs and transponder keys that are battery operated. For your convenience, we made a video of how to replace the battery (We will keep updating this page with additional videos of new key fobs and transponder keys).
Mazda 3, Mazda 6, CX-3, CX-30, CX-5, CX-9, MX5 Miata key fob battery replacement (e.g. BCYN-67-5DY)
[embedyt] https://youtu.be/tlf1RTs_K88[/embedyt]
Mazda CX-3, CX-5, CX-7, CX-9, Mazda 3, 6, MX5 Miata, Speed 3 key fob battery replacement (e.g. WAZSKE13D01)
[embedyt] https://youtu.be/gYDCdBMp-tc[/embedyt]
Mazda CX-7, CX-9, Mazda 2, 3, 6, key battery replacement (e.g. bgbx1t478ske125-01)
[embedyt] https://www.youtube.com/watch?v=HpKhsv3SlXc[/embedyt]