How to Change Battery in CX 5 Key Fob

A dead key fob battery can be a major inconvenience, leaving you stranded and unable to unlock or start your Mazda CX-5. Fortunately, changing the battery in your CX-5 key fob is a quick and easy process that anyone can do with a few simple tools. In this guide, we’ll walk you through the steps to get your key fob back up and running in no time.

What You’ll Need to Change Your CX-5 Key Fob Battery

Before you begin, gather the following items:

A new CR2032 battery (widely available at most stores)
A small flat-head screwdriver
Your Mazda CX-5 key fob

Step-by-Step Guide to Changing the Battery in Your CX-5 Key Fob

Follow these easy steps to replace your CX-5 key fob battery:

Locate the notch on the side of your key fob. This notch is usually located near the bottom corner where the metal key inserts.
Insert the flat-head screwdriver into the notch and gently pry open the key fob. Be careful not to use excessive force, as this could damage the fob’s casing.
Once the key fob is open, carefully separate the two halves to expose the battery. Take note of the battery’s orientation for correct replacement.
Use your fingernail or the edge of the screwdriver to gently lift and remove the old battery. Avoid touching the battery’s flat surfaces.
Align the positive (+) side of the new CR2032 battery with the positive (+) marking inside the key fob.
Gently press the new battery into place. You should hear a slight click when the battery is properly seated.
Align the two halves of the key fob and press them firmly together until you hear a snap, indicating the fob is securely closed.

Testing Your New Key Fob Battery

After replacing the battery, test your key fob by attempting to lock and unlock your CX-5. The buttons should now function correctly. If your key fob still doesn’t work, ensure the battery is properly installed and that the contacts are clean.

Tips for Maintaining Your CX-5 Key Fob

Always handle your key fob with care to avoid dropping it or exposing it to extreme temperatures. Physical damage can affect the battery’s performance.
Store your spare key fob in a safe and dry place. This will ensure it’s ready to use when you need it.
Consider changing your key fob battery every 2-3 years as a preventative measure, even if it’s still working.

Frequently Asked Questions about CX-5 Key Fob Batteries

Q: Can I use any type of battery in my CX-5 key fob?
A: No, you should only use a CR2032 battery for your Mazda CX-5 key fob. Using a different type of battery can damage the fob.

Q: How long does a CX-5 key fob battery last?
A: The lifespan of a CX-5 key fob battery can vary depending on usage, but they typically last between 2-5 years.

Q: What should I do if my key fob still doesn’t work after changing the battery?
A: If you’ve replaced the battery and your key fob is still not functioning correctly, there might be an issue with the fob itself. It’s best to consult your Mazda dealership or a qualified automotive locksmith for further assistance.

Need More Help with Your Mazda?

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