Maintaining your Subaru key fob is crucial for seamless vehicle access and operation. A common issue Subaru owners face is replacing the key fob battery. Understanding why and how to replace it can save you time and prevent unexpected inconveniences. This guide provides a detailed walkthrough on replacing your Subaru key fob battery, ensuring you’re well-equipped to handle it yourself.
Understanding Subaru Key Fob Batteries
Subaru key fobs typically use a CR2032 3V lithium coin battery. These batteries are known for their longevity, but several factors can influence their lifespan in your key fob. Battery quality plays a significant role; not all CR2032 batteries are manufactured to the same standards. Choosing reputable brands like Energizer or Duracell can often lead to better performance and longevity compared to generic brands.
User habits also impact battery life. Repeatedly pressing the lock/unlock buttons, especially from a distance, drains the battery faster. Modern Subaru vehicles come equipped with touch-sensitive door handles and proximity unlocking features. Utilizing these can significantly reduce battery consumption. For instance, instead of pressing the unlock button multiple times as you approach your Subaru, simply touching the door handle can unlock it.
Another often-overlooked factor is the proximity of your key fob to your vehicle when parked at home. If the key fob is stored too close to the car, it can maintain constant communication, leading to quicker battery depletion in both the fob and potentially the car itself. Storing your key fob further away from your vehicle or using a Faraday box can prevent unnecessary battery drain.
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 at home. Here’s a step-by-step guide:
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Identify Your Key Fob Type: Subaru key fobs vary slightly depending on the model and year of your vehicle. However, the battery replacement process is generally similar across models.
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Gather the Necessary Tools: You will typically need a small Phillips head screwdriver or a flathead screwdriver, depending on your key fob model, and a new CR2032 battery. Having a soft cloth can also be helpful to protect the fob casing from scratches.
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Open the Key Fob Casing: Locate the small notch or screw on your key fob. Using the appropriate screwdriver, carefully open the casing. Some fobs might require unscrewing a tiny screw, while others simply snap open with a gentle pry. Refer to your owner’s manual for specific instructions if needed.
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Remove the Old Battery: Once the fob is open, you’ll see the CR2032 battery. Take note of the battery’s orientation (+ side up). Gently pry out the old battery. In some models, you might need to slide the battery out from under a small retaining clip.
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Insert the New Battery: Install the new CR2032 battery, ensuring the + side is facing upwards, matching the orientation of the old battery. Push it firmly into place until it is securely seated.
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Close the Key Fob Casing: Carefully align the two halves of the key fob casing and snap them back together. If your fob has a screw, tighten it gently but firmly. Ensure the casing is completely closed and secure.
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Test Your Key Fob: Press the buttons on your key fob to test if it is working correctly. Check if the doors lock and unlock and if the panic button functions. If everything works as expected, you have successfully replaced your Subaru key fob battery.
Tips for Extending Your Subaru Key Fob Battery Life
To maximize the lifespan of your Subaru key fob battery, consider these tips:
- Use Quality Batteries: Opt for reputable brands like Energizer or Duracell for your CR2032 replacement batteries. They often offer better quality control and longer-lasting performance.
- Minimize Button Presses: Avoid habitually pressing the key fob buttons multiple times. Utilize your Subaru’s touch-enabled locking and proximity unlocking features whenever possible.
- Store Fob Away from Vehicle: Keep your key fob at a reasonable distance from your Subaru when at home. This prevents constant signal exchange and reduces battery drain. Consider using a Faraday box or pouch for storage to further minimize signal transmission.
- Regularly Check Battery: If you experience inconsistent key fob performance, such as reduced range or needing to press buttons multiple times, it might be time to check your battery. While battery testers are available, simply replacing the battery proactively every 1-2 years can prevent unexpected issues.
By understanding the factors affecting Subaru key fob battery life and following these replacement steps and tips, you can ensure your key fob remains reliable and functional, providing you with uninterrupted access to your vehicle.
