How to Open Your 2007 Mazda MX-5 Miata Key Fob & Change Battery

How to Open Your 2007 Mazda MX-5 Miata Key Fob & Change Battery

Key fob grant access to your Mazda. Once the keyless entry remote battery is dead or weak you’ll lose your keyless entry fob's ability to use remote opening function. In this post, we outlined how to open your car key fob and replace your Mazda key battery step by step.

What kind of battery key fob use

Before you start to open key fob be sure that you have all required tools and materials: flat head screwdriver and one CR2025 battery.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to change the battery in your MX-5 Miata's key fob

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

Delicately try to open your keyless entry remote with flat head screwdriver. Replace one CR2025 battery with flat head screwdriver.

Get new battery and install it in keyless entry fob's shell. 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.

After the new battery installed, verify remote key fob functionality by pressing buttons. If everything working fine, assemble your keyless entry fob's body 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. Inspect your key fob body for gaps. If it is not tightly closed try to repeat last step.

Video of keyless entry remote opening

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

Still not working? Buy new one

FAQ

Remote key fob of Mazda MX-5 Miata use 1xCR2025 batteries. Most CR2025 batteries are under $5 build upon the size packaging, brand and type you buy. Take your old battery to the store, with you to find a proper replacement.

Usually, after key 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 key fob battery is easy to do in 2007 Mazda MX-5 Miata. Most of car manufacturers think about clients and make a special hole for key fob disassembly.

The cost to replace the battery in keyless entry remote can run anywhere $50-600 depending on the car and the service pricing.

Remote key fob batteries in Mazda MX-5 Miata should be replaced every four years, but this will vary based on their amount of use and build quality. If your key fob shortened signal strength, you should change batteries before it stop open doors and make problems for you.

These symptoms will warn you that it's perhaps time to replace battery in your Mazda MX-5 Miata: you didn't change battery more than 4 years, multiple clicks to unlock or lock doors required, signal strength reduced and key fob buttons not working.
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Fob Compatibility:

  1. FCC ID: BGBX1T458SKE11A01
  2. Models: 2006-2008 Mazda MX-5 Miata