Experiencing issues with your Subaru key fob? A common culprit is a low or dead battery. As experts at keyfobprog.com, we understand the frustration this can cause. While modern Subaru key fobs are incredibly convenient, they rely on battery power to function correctly. Understanding why your Subaru key fob battery might be draining quickly and knowing how to replace it are essential for every Subaru owner.
Understanding Subaru Key Fob Battery Drain
Several factors can contribute to your Subaru key fob battery needing replacement sooner than expected. It’s not always just random chance.
Battery Quality Matters
The quality control of CR2032 coin batteries, the type commonly used in Subaru key fobs, can vary. Not all batteries are created equal. Occasionally, a battery from even a reputable brand might be faulty right out of the package. If you have a battery tester, it’s a good idea to check the new battery before installing it in your fob. For reliable performance, brands like Energizer or Duracell are generally recommended and widely available. Genuine Panasonic batteries are also a good choice but might be harder to find in retail stores.
Usage Habits and Battery Life
Do you frequently press the lock/unlock buttons on your key fob, even when you are not near your vehicle? This habit, common among many, can significantly reduce battery life. Every button press consumes battery power. Subaru vehicles come equipped with touch-sensitive door handles and proximity unlocking features. Utilizing these features can minimize unnecessary battery drain from excessive button pressing. For those moments when you’re unsure if you locked your car after walking away, the MySubaru/Starlink app offers a convenient way to check and control your vehicle remotely, without overusing your key fob buttons.
Proximity Effect: Key Fob and Vehicle
There’s evidence suggesting that keeping your key fob too close to your Subaru vehicle when at home can lead to faster battery depletion in both the fob and the car. The continuous communication attempts between the fob and the vehicle, even when idle, can drain power. To prevent this, store your key fob further away from your vehicle when you’re at home. Alternatively, consider using a Faraday cage or a signal-blocking valet tray to store your key fob. This blocks signals and prevents unnecessary communication, preserving battery life.
Step-by-Step Guide to Replacing Your Subaru Key Fob Battery
Replacing the battery in your Subaru key fob is a straightforward process you can easily do yourself. Here’s how:
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Identify Your Key Fob Type: Subaru key fobs vary slightly depending on the model and year. However, the battery replacement process is generally similar.
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Gather the Necessary Tools: You will need a new CR2032 battery and a small flathead screwdriver or a similar tool to open the key fob casing.
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Open the Key Fob Casing: Locate the small notch or opening on your key fob. Carefully insert the flathead screwdriver into this notch and gently twist to pry the casing open. Avoid using excessive force to prevent damage to the fob.
Alt text: Opening a Subaru key fob case to access and replace the CR2032 battery.
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Remove the Old Battery: Once the casing is open, you will see the CR2032 battery. Take note of the battery’s orientation (+ side up). Gently remove the old battery. You may need to use the screwdriver to help pry it out, being careful not to damage the battery compartment.
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Insert the New Battery: Install the new CR2032 battery in the same orientation as the old one (+ side up). Ensure it is securely placed in the battery compartment.
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Close the Key Fob Casing: 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 secure.
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Test Your Key Fob: After replacing the battery, test your key fob to ensure it is working correctly. Try locking and unlocking your car and using other key fob functions.
Tips to Maximize Your Subaru Key Fob Battery Life
- Use Quality Batteries: Opt for reputable brands like Energizer, Duracell, or genuine Panasonic CR2032 batteries for longer-lasting performance.
- Avoid Excessive Button Presses: Utilize your Subaru’s touch-enabled locking and proximity unlocking features to minimize unnecessary button presses.
- Store Key Fob Away from Vehicle: When at home, keep your key fob at a distance from your Subaru or use a Faraday cage to prevent signal interference and battery drain.
- Regularly Check Your Emergency Key: While replacing the battery usually solves key fob issues, ensure your mechanical emergency key works correctly as a backup.
Replacing your Subaru key fob battery is a simple maintenance task that can save you from unexpected inconveniences. By understanding the factors that affect battery life and following these steps, you can keep your Subaru key fob functioning reliably for years to come. For more car maintenance tips and key fob programming solutions, visit keyfobprog.com.
