Pull out the dead key fob battery from the mazda keyless remote.
Mazda 3 key fob battery replacement 2010.
Push on ignition key.
Stand near your mazda3 and press the lock or unlock buttons to test the new key fob battery.
Insert the new battery.
Released in 2004 the vehicle is currently in its fourth generation.
Place the back mazda key fob case aside.
Make sure the positive symbol is facing you.
Test new fob battery.
Fold the metal ignition key back down in to the fob and double check that the parts are secure.
Remove the key fob battery cover from your mazda remote.