How to Open Your 2019 Mazda CX-3 Key Fob & Change Battery

How to Open Your 2019 Mazda CX-3 Key Fob & Change Battery

Key fob grant easy access to your Mazda. Once the remote key fob battery is dead or weak you will lose your keyless entry fob's ability to control distance opening function. In this post, you will benefit from knowing how to open Mazda keyless entry remote and change a dead battery yourself. If you gonna solve to do it at home near CX-3, use this guide, but don't forget to check all you need.

What is the battery keyless entry remote require

Changing battery in remote key fob 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

Simple steps to replace the battery in your car's key fob

Inside of your keyless entry remote installed coin cell battery. Remove any internal key before you try to pry apart the key fob.

Gently try to pry apart your remote key fob with flat head screwdriver. Remove 1 CR2025 battery with flat head screwdriver.

Get new battery and install it in fob’s case. Be sure to connect the battery the right way around in a circuit. Your key will not work if you connect battery wrong way.

Before assembling keyless entry fob's case, make sure that all functions works by testing buttons on remote key fob.

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

Video of key disassembly

Mazda CX-3 Smart Key Fob Battery Replacement (2016 - 2019)

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Mazda CX-3 require 1xCR2025 batteries. Price for CR2025 batteries are under $6 build upon the type, brand and size packaging you buy. You can take old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases do not need to be reprogrammed after battery replace. If your remote key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can replace battery in your 2019 Mazda CX-3 remote key fob yourself. Most hard part is to open fob’s case. It's pretty easy with our step by step guide.

Car service pricing for change the battery in keyless entry remote is $50-600 depending on the brand.

You should replace batteries inside remote key fob of Mazda CX-3 at least every four years. lifespan of battery vary on frequency of use, operating conditions and quality.

These symptoms will alert you that it's probably time to change battery in your Mazda CX-3: low key battery indicator on dashboard, signal strength reduced, you didn't change battery more than 4 years and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  1. FCC ID: WAZSKE13D01
  2. Models: 2016-2019 Mazda CX-3