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How to Change the Battery in a MAZDA Key Fob


At Tulley Mazda near Hudson, we understand how frustrating it can be when your Mazda key fob stops working. Instead of having to come to our service center to have the battery replaced, learn how to open the Mazda key fob and replace the battery at home! Our helpful service guide, made by our knowledgeable service team, can help you get your key working properly again in no time! Mazda key fob battery replacement is quick and convenient.


How to Open a MAZDA Key Fob

Is it time to change your Mazda key fob battery? Once you learn how to open your Mazda CX-5 key fob casing, or the casing for another Mazda model, getting your key fob battery changed in Merrimack is quick and easy. Not sure how to change a battery in a Mazda key fob? First, you’ll want to get together electrical tape and a flathead screwdriver. Here’s how to open a Mazda key fob plastic housing to get to the battery:

  1. First, remove the traditional metal key.
  2. You should now be able to locate the notch on either side of the case.
  3. Tape the end of the screwdriver in electrical tape to protect the plastic from the metal.
  4. Pop the case open by inserting the screwdriver in one notch, then the other.
  5. Now you’re ready to finish the process by following the “how to change the battery in Mazda key fob” instructions below.

How to Change the Battery in MAZDA Key Fob

Ready to learn how to change a battery in a Mazda key fob? After opening the key fob, it’s time to swap out the battery. When buying a new one, you’ll want to have the old one handy to ensure you get the right one. While you can find new batteries at the local hardware store, you can also order the parts online from our parts department. Once you have the right battery, here’s how to replace the Mazda key fob battery:

  1. With the case already open, remove the old battery.
  2. Carefully inspect the rubber ring on which the battery sits to ensure it’s in good condition. If not, you’ll want to replace that as well. You can get that item from our Tulley Mazda parts department.
  3. Simply place the new battery in the housing, with the positive (+) side up.
  4. Reassemble your plastic housing, pressing until you hear the case click back into place.
  5. You have now performed a successful Mazda key fob battery replacement, and you’re ready to hit Merrimack roads with your functional fob!

Turn to Us for MAZDA Key Fob Battery Replacement and More

Need assistance replacing the Mazda key fob battery? Our service team is more than happy to help. If you’ve replaced the battery and it’s still not working, it could be a different issue with the Mazda key fob. Before choosing to shop with Tulley Mazda, be sure to check out our service coupons to help you save more. Have questions in the meantime? Contact us!

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Tulley Mazda 42.7246467, -71.4491792.