Replacing your Mazda CX-5 key fob battery might seem daunting, but it’s a straightforward task you can easily handle at home. Knowing the correct battery size and the steps to replace it can save you time and a trip to the dealership. This guide will provide you with all the essential information about your Mazda CX-5 key fob battery.
Identifying the Correct Battery Size
The most common battery size for Mazda CX-5 key fobs is the CR2025 3V lithium coin battery. However, some models might also use a CR2032 battery. It’s crucial to check your owner’s manual to confirm the exact battery type for your specific Mazda CX-5 model year. You can also often find the battery type indicated inside the key fob itself once you open it.
Using the correct battery size is important for ensuring proper contact and function of your key fob. While both CR2025 and CR2032 batteries are 3V lithium batteries and have the same diameter (20mm), they differ in thickness. The CR2032 is slightly thicker (3.2mm) than the CR2025 (2.5mm). In most cases, you can use a CR2032 in place of a CR2025 if needed, but it’s always best to use the recommended type.
Step-by-Step Battery Replacement Guide
Replacing the battery in your Mazda CX-5 key fob is a simple process that requires minimal tools. Here’s a step-by-step guide to help you through it:
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Gather Your Tools: You will need a new CR2025 or CR2032 battery (check your manual or key fob), and a small flathead screwdriver. Wrapping the tip of the screwdriver with a soft cloth can prevent scratches on your key fob.
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Open the Key Fob: Locate the small notch or seam on your Mazda CX-5 key fob. This is usually on the side or bottom of the fob.
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Carefully Pry Open the Fob: Insert the flathead screwdriver into the notch and gently twist to pry the key fob open. Be careful not to use excessive force, as you could damage the casing. The fob should split into two halves.
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Locate and Remove the Old Battery: Once the key fob is open, you will see the battery. It’s usually held in place by small clips. Take note of the battery’s orientation (+ side up or down) before removing it. Gently use your fingertip or the edge of the screwdriver to remove the old battery.
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Insert the New Battery: Install the new CR2025 or CR2032 battery in the same orientation as the old one. Ensure it is securely placed under the retaining clips.
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Close the Key Fob: Align the two halves of the key fob and press them firmly together until they snap back into place. Ensure there are no gaps and the fob is securely closed.
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Test Your Key Fob: After replacing the battery, test your Mazda CX-5 key fob to ensure it is working correctly. Try locking and unlocking your car, and starting the engine if your key fob has that function.
Tips for Key Fob Battery Maintenance
- Replace Battery Promptly: When you notice your key fob range decreasing or the “key battery low” indicator appearing on your dashboard, replace the battery as soon as possible to avoid being locked out of your vehicle.
- Use Quality Batteries: Opt for reputable brands of CR2025 or CR2032 batteries for longer life and reliable performance.
- Store Spare Batteries: Keep a spare battery at home or in your glove compartment for emergencies.
- Avoid Extreme Temperatures and Humidity: Extreme temperatures and humidity can shorten battery life. Avoid leaving your key fob in direct sunlight or damp environments for extended periods.
By following these steps and tips, you can confidently replace your Mazda CX-5 key fob battery and ensure your key fob remains functional and reliable. Knowing the correct battery size, CR2025 or CR2032, is the first step to a successful and hassle-free replacement.
