How to Replace the Battery in a 2018 Mazda MX-5 Miata Key Fob
Remote key fob grant easy access to your Mazda. If the remote key fob battery is dead you lose your keyless entry fob's ability to use remote opening function. In this case, we demonstrate how to disassembly Mazda key fob and change a discharged battery DIY. If you decide to do it at home near MX-5 Miata, follow our instruction, but first make sure you have all you need.
What is the battery key fob useDon't forget before open key fob check all that you need: CR2025 battery and flat head screwdriver.
- flat head screwdriver
- 1xCR2025 battery
Step by step guide
A tiny coin cell battery installed in the your remote key fob. Move the key out of the way if it is in the remote key fob.
Carefully try to open your fob with pry tools. Change 1xCR2025 battery with flat head screwdriver.
Change old battery with new one CR2025. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you connect battery wrong way.
When the new battery installed, check remote key fob by pressing buttons. If all functions works, assemble your keyless entry fob's case in reverse order.
The last thing to do is put your cover back on fob. Gently try to put the pieces together by hands from top to bottom. If your key shell firmly closed, we done. If not, repeat the last step.
Key Fob Battery Replacement 2018 Mazda MX-5 Miata Video
Mazda MX-5 Miata Smart Key Fob Battery Replacement (2016 - 2019)
Still not working? Buy new one