How to Open Your 2012 Mazda 6 Key Fob & Change Battery

How to Open Your 2012 Mazda 6 Key Fob & Change Battery

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

What type battery does 2012 Mazda 6 key fob required

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

Step by step guide

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

Delicately try to pry apart your keyless entry remote with flat head screwdriver. Change 1xCR2025 battery with flat head screwdriver.

Now it's time to install new battery in fob’s body. 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 position on battery, by "+" mark.

Before assembling fob’s case, check that all functions works by pressing buttons on key fob.

At this point squeeze fob’s back cover together. Line your shell pieces together and assemble it in place by hands from top to bottom. Check your keyless entry remote shell for gaps. If it is not firmly closed try to repeat last step.

Key Fob Battery Replacement 2012 Mazda 6 Video

How To Change A Mazda 6 Key Fob Battery (2006-2012)

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Mazda 6 require 1xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the size packaging, type and brand you buy. Take your old battery to the store, with you to find a proper replacement.

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

Changing your keyless entry remote battery is simple to do in 2012 Mazda 6. Most of car manufacturers think of the clients and make a special hole for keyless entry remote open.

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

Remote key fob batteries in Mazda 6 should be changed every three years, although this will vary based on frequency of use and build quality. If your remote key fob shortened signal strength, you should change batteries before it stop working and make problems for you.

If your auto signal strength reduced, has low key battery indicator on dashboard, key fob buttons not working or need multiple clicks to unlock or lock doors, in most cases battery replace inside keyless entry remote required. Installed battery is weak with a high probability, but if it's not help, fob replace or repair required.
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Fob Compatibility:

  1. FCC ID: KR55WK49383
  2. Models: 2009-2014 Mazda 6