How to Open Your 2018 Mazda CX-5 Key Fob and Change Battery

How to Open Your 2018 Mazda CX-5 Key Fob and Change Battery

If your Mazda key fob is not unlock doors correct, the battery more likely must to be replaced. In this case, we are going to tell you how to open Mazda key fob and change a weak battery yourself. If you choose to do it at home near CX-5, follow our guide, but first make sure you have tools and materials required.

What size battery does 2018 Mazda CX-5 key fob take

Before beginning disassembly keyless entry remote check all that you need: flat head screwdriver and 1 CR2025 battery.
  • 1xCR2025 battery
  • flat head screwdriver

Simple steps to replace the battery in your CX-5's key fob

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

Accurately try to open your keyless entry remote with flat head screwdriver. Replace 1 CR2025 battery with flat head screwdriver.

Replace old battery with fresh one CR2025. 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 polarity on battery, by "+" mark.

When the new battery installed, check key fob functionality by pressing buttons. If everything is functioning, assemble your keyless entry fob's shell in reverse order.

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

Key Fob Battery Replacement 2018 Mazda CX-5 Video

Mazda 3, CX-5 key fob battery replacement

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Mazda CX-5 use 1xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the size packaging, type and brand you buy. Take your old battery to the store, to be sure.

Often, after key fob battery replace, reprogramming not required. Keyless entry remote reprogramming procedure often described in user's manual of your vehicle.

Replacing your remote key fob battery is easy to do in 2018 Mazda CX-5. Most of car manufacturers think about customers and make a special hole for key fob open.

The cost to change the battery inside keyless entry remote can run anywhere from $30 to as high as $500 depending on the car and the service station.

Keyless entry remote batteries in Mazda CX-5 should be replaced every 3-4 years, although this will differ based on frequency of use and build quality. If your keyless entry remote shortened signal strength, you should replace batteries before it stop open doors and make problems for you.

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

  1. FCC ID: WAZSKE13D02
  2. Models: 2016-2018 Mazda CX-5