How to Replace the Battery in a 2018 Mazda 6 Key Fob

How to Replace the Battery in a 2018 Mazda 6 Key Fob

If your Mazda remote key fob is no longer unlock doors perfectly, the battery probably needs to be changed. Below, we described how to open your remote key fob and change your Mazda key battery step by step.

What size battery does 2018 Mazda 6 key fob required

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

Step by step instruction

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

Gently try to pry apart your keyless entry remote with pry tools. Replace one CR2025 battery with flat head screwdriver.

Get new battery and install it inside fob’s case. 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 position on battery, by "+" mark.

Before assembling keyless entry fob's case, verify that everything is functioning by testing buttons on remote key fob.

At this point squeeze keyless entry fob's back cover together. Line your case two halves together and put it together by hands from top to bottom. If your fob shell tightly closed, we done. If not, repeat the last step.

Video of key disassembly

Mazda 6 Sedan Smart Key Fob Battery Replacement (2009 - 2018)

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mazda 6 require 1xCR2025 batteries. Price for CR2025 batteries are under $4 depending on the brand, type and size packaging you buy. Take your old battery to the store, to find a proper replacement.

Usually, after keyless entry remote battery replace, reprogramming not required. Key fob reprogramming procedure often described in user's manual of your vehicle.

Yes, you can change battery in your 2018 Mazda 6 keyless entry remote yourself. Most hard part is to disassembly keyless entry fob's case. It's pretty easy with our step by step guide.

Auto repair shop's pricing for change the battery in remote key fob is from $30 to as high as $500 depending on the brand.

Key fob batteries in Mazda 6 should be replaced once in 3-4 years, but this will differ based on frequency of use and quality. If your remote key fob reduced signal strength, you should replace batteries before it stop working and make problems for you.

These signs will warning you that it's perhaps time to replace battery in your 2018 Mazda 6: low key battery indicator on dashboard, signal strength reduced, key fob buttons not working and you didn't change battery more than 4 years.
Be the first to comment.
Your message is required.

Fob Compatibility:

  1. FCC ID: WAZSKE13D01
  2. Models: 2013-2018 Mazda 6