Is your Subaru key fob starting to feel unresponsive? Perhaps you’re finding you need to be closer and closer to your vehicle for it to lock or unlock, or maybe you’ve even received a low battery warning light on your dashboard. These are common signs that it’s time to replace the battery in your Subaru key fob. Fortunately, changing the battery is a straightforward process you can easily do yourself at home in just a few minutes. This guide will walk you through the simple steps to replace your Subaru key fob battery and offer some helpful tips to maximize your key fob battery life.
Before we dive into the process, it’s worth understanding why your key fob battery might need replacing and how to potentially extend its lifespan. Several factors can influence how long your key fob battery lasts. The quality of the battery itself is a significant factor. Not all CR2032 coin batteries are created equal. While most reputable brands like Energizer and Duracell offer reliable performance, occasionally, a less effective battery can slip through quality control. If you have a battery tester, it can be a good idea to check the voltage of a new battery before installing it in your fob to ensure it’s in good condition.
Another common reason for shortened battery life is usage habits. If you frequently press the lock and unlock buttons repeatedly, especially from a distance, you’re using the key fob’s battery more often than necessary. Modern Subarus come equipped with convenient touch-sensitive door locking and proximity unlocking features. Utilizing these can significantly reduce battery drain from excessive button presses. For example, instead of repeatedly hitting the unlock button as you approach your car, simply touching the door handle can unlock it. Similarly, using the touch-lock feature on the door handle when leaving the vehicle is more efficient than pressing the lock button multiple times.
Furthermore, consider where you store your key fob when you’re not using your vehicle. There’s evidence suggesting that keeping your key fob too close to your Subaru can lead to faster battery drain in both the fob and the car. To prevent this, store your key fob away from your vehicle when you’re at home. An even more effective solution is to use a Faraday cage or pouch to store your key fob. These specialized containers block electromagnetic fields, preventing communication between your key fob and your car when parked, thus minimizing battery drain.
Now, let’s get to the process of changing your Subaru key fob battery. Here’s a step-by-step guide:
What You’ll Need:
- A new CR2032 coin battery.
- A small flathead screwdriver or similar thin tool (like a key or butter knife).
Steps to Change Your Subaru Key Fob Battery:
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Locate the small notch on your key fob. This notch is usually on the side or bottom of the fob, depending on your Subaru model.
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Insert the tip of your flathead screwdriver or thin tool into the notch. Gently twist the screwdriver to pry the key fob casing open. You may hear a slight click as the casing separates.
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Carefully separate the two halves of the key fob casing. Once open, you’ll see the circuit board and the battery compartment.
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Identify the CR2032 battery. It’s usually held in place by small clips or a retainer.
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Gently remove the old battery. You might need to use your small screwdriver to help lift it out from under the clips. Take note of the battery’s orientation (+ side up or down) before removing it.
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Insert the new CR2032 battery. Ensure the new battery is inserted with the correct orientation (usually the “+” side facing upwards). Push it firmly into place until it’s securely held by the clips.
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Reassemble the key fob casing. Align the two halves of the casing and press them firmly together until they snap back into place. Ensure there are no gaps and the casing is securely closed.
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Test your key fob. Press the lock and unlock buttons to ensure the new battery is working and your key fob is functioning correctly.
Changing your Subaru key fob battery is a simple maintenance task that can save you time and potential frustration. By following these steps and considering the tips to prolong battery life, you can ensure your key fob remains reliable and functional for years to come. Remember to also check your physical emergency key to ensure it works in the door lock as a backup, just in case you ever encounter unexpected issues with your key fob.
