Is your 2021 Mazda key fob not working as reliably as it used to? You might be facing a common issue: a dead or dying key fob battery. Fortunately, replacing the battery in your Mazda key fob is a straightforward process you can easily handle yourself. This guide will walk you through each step, ensuring you can quickly regain full functionality of your key fob.
To begin, you’ll need a few simple tools and a replacement battery. Typically, 2021 Mazda key fobs use a CR2025 or CR2032 type battery. It’s always best to check your owner’s manual or the markings on your old battery to confirm the correct type. You’ll also need a small flathead screwdriver or a similar tool to gently pry open the key fob casing.
Once you have your tools and new battery, find a clean, well-lit workspace. Locate the small notch on your Mazda key fob casing. This notch is usually positioned along the side or bottom of the fob. Carefully insert the tip of your flathead screwdriver into this notch. Apply gentle pressure to pry the two halves of the key fob casing apart. Take your time and avoid using excessive force to prevent damage to the casing.
With the key fob casing open, you’ll see the battery compartment. The old battery will be visible, usually held in place by small clips or contacts. Note the orientation of the battery – specifically, which side is facing up (+ or -). This is crucial for inserting the new battery correctly.
Using your fingertip or the edge of the screwdriver, carefully remove the old battery. Now, take your new CR2025 or CR2032 battery and insert it into the battery compartment, matching the orientation of the old battery you just removed. Ensure the new battery is securely seated in place.
Carefully align the two halves of the key fob casing and press them back together until they snap securely shut. You should hear a click or feel the casing close firmly, indicating it’s properly sealed.
Finally, test your 2021 Mazda key fob to ensure it’s working correctly. Try locking and unlocking your car remotely, as well as starting the engine if your key fob has that functionality. If everything works as expected, you’ve successfully replaced your Mazda key fob battery!
Replacing your 2021 Mazda Key Fob Battery is a simple maintenance task that can save you time and hassle. By following these steps, you can keep your key fob functioning perfectly and avoid being stranded by a dead battery. Remember to always dispose of old batteries responsibly and consult your Mazda owner’s manual for any specific instructions related to your vehicle model.
