How To Open Mazda Key Fob 2015. You can follow these simple steps to reveal the battery: The first time this happened, i replaced the key fob battery, thinking that this was the problem.
To open a mazda key fob, press the small button located on the back under the silver key ring. Twist a tape wrapped flathead screwdriver in the direction of the arrow and open the cover slightly. Slide the tabs on the key section back into the remote control section and push them together until you hear them snap in place.
After chime, press any fob key twice.
After third chime, press any fob key twice again. This has happened to me twice already. Depress and hold brake pedal until vehicle starts; After third chime, press any fob key twice again.