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Replace The Key Fob Battery on a Mazda CX-5

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The Mazda CX-5 key fob is needed to lock, unlock, and start the vehicle. Unfortunately it doesn't give you any low battery warnings.

Luckily, replacing the battery is very simple task.

Required Tools
  • Flat head screwdriver or prying tool
Required Parts
  • 2025 Battery
Step by Step Instructions
1

Remove the key from the fob by pushing the tiny switch and pulling on the key ring.

Image 8181 from Replace the Key Fob Battery on a Mazda CX-5
2

Using a prying tool, gently pry the 2 halves of the fob apart. Work your way around the fob slowly.

Image 8182 from Replace the Key Fob Battery on a Mazda CX-5
3

Remove the battery cover by pulling it off with your fingers.

Image 8183 from Replace the Key Fob Battery on a Mazda CX-5
4

Remove the battery and replace it with a new one.

Be sure to remove any stickers that may be on the new battery.

Image 8184 from Replace the Key Fob Battery on a Mazda CX-5
5

Re-assemble everything and test it out.

The fob should not require any reprogramming.

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