All you need is a small flat head or pocket screwdriver a replacement battery from your local.
Mazda 3 key fob battery replacement 2016.
Pull out the dead key fob battery from the mazda keyless remote.
Replacing the cr2025 battery in your mazda key fob is a cinch.
Cr2025 battery lithium button coin cell batteries 3v 3 volt remote watch jewelry led key fob replacement 2025 cr pack set bulk 2 pack 4 4 out of 5 stars 485 6 47 6.
The positive is on top while the negative side of the button cell battery is facing the key fob.
Make sure the positive symbol is facing you.
What to do if you lose your car keys again though you can try figuring out how to replace the mazda key fob battery yourself we always recommend working with a qualified mazda technician to avoid damaging the key.
Place the back mazda key fob case aside.
Insert the new battery.
Mazda 3 key fob battery remote replacement diy years 2004 2018 the mazda 3 also known as the mazda axela is a fun to drive reliable and safe compact car.
Replace the key fob cover which should snap into place.
Replace the battery cap.
Remove the key fob battery cover from your mazda remote.