How to Open Your 2012 Mazda MX-5 Miata Key Fob and Change Battery

How to Open Your 2012 Mazda MX-5 Miata Key Fob and Change Battery

If your Mazda keyless entry remote is no longer working correct, the battery more likely needs to be changed. It's not difficult to change the battery in your remote key fob with our guide. All tools, that you need is described in this article.

What type battery does 2012 Mazda MX-5 Miata key fob required

Changing battery in key fob require flat head screwdriver and CR2025 battery. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to replace the battery in your MX-5 Miata's keyless entry remote

A tiny coin battery installed inside the your remote key fob. Remove any internal key first, and then try to pry apart the remote key fob.

Gently try to disassemble your key fob with pry tools. Replace 1xCR2025 battery with flat head screwdriver.

Change old battery with fresh one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling keyless entry fob's case, check that all working fine by testing buttons on circuit board.

The last thing to do is put your cover back on fob. Delicately try to assemble the two halves in place by hands from top to bottom. Check your key fob case for gaps. If it is not firmly closed try to repeat last step.

How to change the battery video instruction

How To Replace A Mazda Miata MX-5 Key Fob Battery (2006-2013)

Still not working? Buy new one

FAQ

Key fob of Mazda MX-5 Miata require 1xCR2025 batteries. Price for CR2025 batteries are under $6 depending on the type, size packaging and brand you buy. You can take old battery to the store, with you to find a proper replacement.

Usually, after remote key fob battery replace, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Changing your keyless entry remote battery is simple to do in 2012 Mazda MX-5 Miata. Most of car manufacturers think about clients and make a special hole for key fob open.

The cost to replace the battery in key is $50-600 depending on the brand and the service station.

Keyless entry remote batteries in modern cars should be replaced once in 3-4 years, also this will vary based on frequency of use and quality. If your remote key fob shortened signal strength, you should replace batteries before it stop working and make trouble for you.

If your MX-5 Miata need multiple clicks to unlock or lock doors, key fob buttons not working, signal strength reduced or has low key battery indicator on dashboard, it's probably battery replace in key fob needed. Installed battery is dead or weak with a high probability, but if it's not fix problem, key change or repair needed.
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Fob Compatibility:

  1. FCC ID: WAZX1T763SKE11A04
  2. Models: 2009-2015 Mazda MX-5 Miata