How to Replace the Battery in a 2019 Mazda CX-9 Key Fob

How to Replace the Battery in a 2019 Mazda CX-9 Key Fob

Key fob grant easy access to your auto. Once the key fob battery is discharged you’ll lose your keyless entry fob's ability to control distance opening function. In this post, we are going to tell you how to disassembly your car key fob and change a dead or weak battery yourself. If you decide to do it at home near CX-9, use this guide, but don't forget to check everything you need before you start.

What size battery does 2019 Mazda CX-9 remote key fob take

Prior to open key fob make sure that you have all recommended tools and materials: flat head screwdriver and 1xCR2025 battery.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to change the battery in your CX-9's keyless entry remote

Inside of your keyless entry remote installed button cell battery. Remove any internal key first, and then try to pry apart the keyless entry remote.

Gently try to disassemble your key fob with pry tools. Change 1 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 charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling keyless entry fob's case, verify that everything working fine by pressing buttons on circuit board.

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

Video of key opening

Mazda CX-9 Smart Key Fob Battery Replacement (2016 - 2019)

Still not working? Buy new one

FAQ

Keyless entry remote of Mazda CX-9 use 1xCR2025 batteries. Price for CR2025 batteries are under $4 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 remote key fob battery change, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Changing your keyless entry remote battery is easy to do in 2019 Mazda CX-9. Most of car manufacturers think of the clients and make a special hole for key fob open.

Car service price for change the battery in key fob is from 50 to 600 dollars depending on the brand.

You should replace batteries inside key fob of Mazda CX-9 at least once in 3-4 years. The term of battery differ on their amount of use, operating conditions and quality.

If your auto has low key battery indicator on dashboard, key fob buttons not working, need multiple clicks to unlock or lock doors or fob's battery more than 4 years old, in most cases battery change inside remote key fob needed. Installed battery is discharged with a high probability, but if it's not fix problem, key fob replace or repair required.
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Fob Compatibility:

  1. FCC ID: WAZSKE13D01
  2. Models: 2016-2019 Mazda CX-9