Is your 2019 Mazda CX-5 key fob not working as reliably as it used to? You might be facing a common issue: a low or dead key fob battery. Fortunately, replacing the battery in your Mazda CX-5 key fob is a straightforward task you can easily do at home. This guide will walk you through each step, ensuring you can quickly get your key fob back in perfect working order.
Recognizing when your 2019 Mazda CX-5 key fob battery needs replacing is the first step. You might notice symptoms like needing to be closer to your vehicle than usual to unlock the doors, inconsistent locking or unlocking, or the Mazda Advanced Keyless Entry and Start System becoming less responsive. In some cases, you might even see a warning light on your dashboard indicating a low key fob battery.
Before you begin the replacement, gather the necessary tools. For a 2019 Mazda CX-5 key fob battery replacement, you will typically need a small flathead screwdriver or a similar tool to gently pry open the key fob casing. You’ll also need a new CR2025 type battery, which is the standard battery for most Mazda key fobs. It’s always a good idea to have a soft cloth handy to protect the key fob surfaces from scratches during the battery replacement process.
Now, let’s get started with the step-by-step battery replacement:
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Locate the notch on your Mazda Key Fob: Examine your key fob and find a small notch. This notch is usually located on the side or bottom of the key fob casing.
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Carefully Pry Open the Key Fob: Insert the tip of your flathead screwdriver or your prying tool into the notch. Gently twist or pry to separate the two halves of the key fob casing. Avoid using excessive force to prevent damage to the casing.
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Access the Battery: Once the key fob is open, you’ll see the internal components and the battery. The battery is usually a small, round, silver disc.
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Remove the Old Battery: Take note of the battery’s orientation (usually the positive side facing upwards). Use your fingertip or the tip of the screwdriver to gently nudge the old battery out of its compartment.
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Insert the New CR2025 Battery: Take your new CR2025 battery and insert it into the battery compartment, ensuring the positive (+) side is facing the correct direction (usually upwards, matching the orientation of the old battery). Make sure the battery is securely seated in its place.
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Reassemble the Key Fob: Carefully align the two halves of the key fob casing and press them firmly together until they snap back into place. Ensure the casing is completely closed and there are no gaps.
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Test Your Key Fob: After reassembly, test your Mazda CX-5 key fob to ensure it is working correctly. Try locking and unlocking your car remotely, and starting the engine using the keyless start system.
If your 2019 Mazda CX-5 key fob still isn’t working after replacing the battery, double-check that you’ve inserted the new battery correctly and that it is the right type (CR2025). If issues persist, there might be a different problem, and it would be best to consult with a qualified mechanic or your Mazda dealer.
Replacing your 2019 Mazda CX-5 key fob battery is a simple maintenance task that can save you time and potential inconvenience. By following these steps, you can ensure your key fob remains reliable and your access to your vehicle is always smooth and hassle-free. Keep a spare CR2025 battery at home so you’re always prepared when it’s time for a key fob battery replacement.
Remember to dispose of the old battery responsibly at a designated battery recycling location. Proper disposal helps protect the environment. With a fresh battery, your 2019 Mazda CX-5 key fob should be ready for years of reliable service.
