How to Open Your 2017 Mazda CX-9 Key Fob and Change Battery

How to Open Your 2017 Mazda CX-9 Key Fob and Change Battery

Key fob grant easy access to your Mazda. Once the keyless entry remote battery is weak you will lose your fob’s ability to use distance opportunities. In this post, we outlined how to disassembly your car key fob and replace your Mazda key battery.

What type battery does 2017 Mazda CX-9 keyless entry remote required

Before starting open key fob check all that you need: flat head screwdriver and CR2025 battery.
  • flat head screwdriver
  • 1xCR2025 battery

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

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

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

Now it's time to install new battery inside keyless entry fob's body. Battery must be placed with the same position as was a previous. Your remote key fob will not work if you mistakenly place battery wrong way.

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

At this point squeeze keyless entry fob's back cover together. Line your body pieces together and assemble it in place by hands from top to bottom. If your keyless entry remote case tightly closed, we done. If not, repeat the last step.

How to change the battery video instruction

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

Still not working? Buy new one

FAQ

Remote key fob of Mazda CX-9 use 1xCR2025 batteries. Most CR2025 batteries are under $4 depending on the size packaging, brand and type you buy. Take your old battery to the store, to find a proper replacement.

Often, after key 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 change battery in your 2017 Mazda CX-9 key fob yourself. Most hard part is to open fob’s case. It's pretty easy with our instruction.

The price to replace the battery inside key is in range from $30 to as high as $500 depending on the brand and the service station.

Key fob batteries in modern cars should be replaced once in 3-4 years, also this will differ based on their amount of use and quality. If your remote key fob reduced signal strength, you should change batteries before it stop working and make problems for you.

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

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