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How to Open a MAZDA Key Fob

Man opening car with key fob


Looking for information on how to change a dead battery in a Mazda key fob? First, you’ll need to open the Mazda key fob. That’s what this handy guide, brought to you by the Mazda service technicians here at the Morrie's Minnetonka Mazda service center provides. So, with that in mind, if you need to open your Mazda key fob and replace a dead key battery, here’s what you’ll need to have at the ready:

  1. A replacement battery on hand (CR2025 battery)
  2. Your Mazda key fob
  3. A small flat head screwdriver with the head wrapped in tape to prevent scratches

Here’s How to Open Your MAZDA Key Fob

Looking for a concrete list of steps to help you open your Mazda6 key fob or your Mazda CX-5 key fob? The below process is similar for new Mazda models from most recent model years. With that in mind, please follow these simple steps to change out your Mazda key fob battery:

  1. Press the auxiliary key button on the back of your key fob so that you can remove the metal auxiliary key.
  2. You should notice a slot on either side of the key fob case. 
  3. Use a tape-wrapped flathead screwdriver to pry open the case carefully, first on one side, and then on the other side. Be sure not to damage the seal around the edge.
  4. By following the above steps, you should have been able to successfully remove the case. Make sure you store it in a safe place.

Having trouble? Contact us anytime and we’ll be more than happy to help.

Replacing Your MAZDA Key Battery

Congratulations on opening your key fob! Now that you’ve done that, you can begin changing out the battery. Here’s what to do:

  1. Remove the battery cap, and place it next to your key fob case.
  2. Your Mazda key fob battery should now be fully exposed. Remove it, being careful not to damage the small rubber ring that it sits in.
  3. If you somehow managed to scratch or damage the rubber ring, it’s important to replace it before moving on.
  4. With the ring in place, take your new replacement battery and set it in its place in the key fob. The positive (+) side should be up, facing you.
  5. Return the battery cover to its proper place, and then reattach both sides of the key fob case. Press until you hear them click into place.

Trust Morrie’s Minnetonka MAZDA for Your Service Needs

Looking for other car service hacks and maintenance tips? We can offer that, and so much more, here at the Morrie's Minnetonka Mazda service center. Want to let the Mazda experts here take care of your key fob battery replacement for you? Schedule service online now. When you do, be sure to also check out our Mazda service coupons for additional savings.

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