How to Replace the Battery in a 2009 Mazda MX-5 Miata Key Fob

How to Replace the Battery in a 2009 Mazda MX-5 Miata Key Fob

If your MX-5 Miata key fob is not unlock doors perfectly, the cell battery more likely must to be changed. In this article, we outlined how to open your car remote key fob and replace your Mazda key battery.

What type battery remote key fob require

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

Step by step instruction

Inside of your keyless entry remote installed tiny coin battery. Move the key out of the way if it is in the remote key fob.

Accurately try to pry apart your remote key fob with hands or flat head screwdriver. Replace CR2025 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s case. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

When the new battery installed, verify key fob by pressing buttons. If all functions works, assemble your fob’s body in reverse order.

The last thing to do is put your cover back on fob. Carefully try to assemble the two halves in place by hands from top to bottom. If your remote key fob shell tightly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2009 Mazda MX-5 Miata Video

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

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mazda MX-5 Miata use 1xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the brand, size packaging and type you buy. Take your old battery to the store, with you to find a proper replacement.

Often, after keyless entry remote battery change, you do not need to reprogram. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Yes, you can replace battery in your 2009 Mazda MX-5 Miata key yourself. Most hard part is to open fob’s case. It's pretty easy with our instruction.

Auto repair shop's cost for replace the battery in key fob is $50-600 depending on the make.

You should replace batteries inside key fob of Mazda MX-5 Miata at least once in three years. The lifetime of battery vary on usage time, quality and operating conditions. Lithium cells usually will last longer.

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

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