Test new fob battery.
Mazda 3 key fob battery replacement 2010.
Push on ignition key.
Released in 2004 the vehicle is currently in its fourth generation.
Fold the metal ignition key back down in to the fob and double check that the parts are secure.
The positive is on top while the negative side of the button cell battery is facing the key fob.
Stand near your mazda3 and press the lock or unlock buttons to test the new key fob battery.
Remove the key fob battery cover from your mazda remote.
Pull out the dead key fob battery from the mazda keyless remote.
Push the metal ignition key piece back in to the fob until it clicks in to place.
Place the back mazda key fob case aside.