Insider advice on getting the most from Nissan

Unlock the Secret: How to Change Subaru Forester Key Battery Like a Pro!

At a Glance

  • If you’re not going to be using your key fob for an extended period, remove the battery to prevent it from draining.
  • While a dead battery is the most common reason for a malfunctioning key fob, other issues might arise.
  • This could be due to a faulty antenna in the key fob or the car.

Your Subaru Forester is your trusty companion for adventures, whether it’s exploring the rugged backroads or navigating city streets. But what happens when your key fob starts acting up, refusing to unlock the doors or start the engine? It’s likely the battery needs replacing. This guide will walk you through the simple process of how to change Subaru Forester key battery, ensuring your adventures remain uninterrupted.

Why Your Key Fob Battery Might Be Dying

Before we dive into the replacement process, let’s understand why your key fob battery might be losing its juice.

  • Age: Like any battery, the one in your key fob has a limited lifespan. Over time, it gradually loses its charge, eventually needing replacement.
  • Frequent Use: If you use your key fob frequently, especially for locking and unlocking your car, the battery will drain faster.
  • Extreme Temperatures: Both extreme heat and cold can affect battery performance, leading to a shorter lifespan.
  • Leaving the Key Fob On: If you accidentally leave your key fob on, it will drain the battery quickly.

What You’ll Need

Before you begin, gather these essential tools:

  • New CR2032 battery: This is the standard battery type for most Subaru Forester key fobs.
  • Small screwdriver: You’ll need this to pry open the key fob.
  • Optional: Tweezers: These can be helpful for removing the old battery.

Step-by-Step Guide to Changing Your Subaru Forester Key Battery

Now, let’s walk through the process of changing your Subaru Forester key battery:

1. Locate the Key Fob Battery Cover: Examine your key fob closely. You’ll find a small seam or a small button on one side of the fob. This is where the battery cover is located.
2. Pry Open the Cover: Gently insert your screwdriver into the seam or press the button to release the battery cover. Be careful not to force it, as you might damage the key fob.
3. Remove the Old Battery: The battery will be visible inside the key fob. Use your fingers or tweezers to carefully remove the old battery.
4. Insert the New Battery: Align the new CR2032 battery with the positive (+) and negative (-) terminals inside the key fob. Ensure the battery is properly inserted.
5. Replace the Cover: Carefully snap the battery cover back into place.

Testing Your New Battery

After replacing the battery, test your key fob to ensure it’s working correctly.

  • Unlock and Lock: Try unlocking and locking your Subaru Forester using the key fob.
  • Start the Engine: Test if the key fob can start the engine.

If the key fob functions properly, you’ve successfully replaced the battery.

Tips for Extending Battery Life

Here are some tips to extend the life of your key fob battery:

  • Minimize Key Fob Use: If possible, avoid using your key fob unnecessarily. For example, if you’re close to your car, use the key to unlock it manually.
  • Store in a Cool, Dry Place: Avoid exposing your key fob to extreme temperatures.
  • Remove Battery When Not in Use: If you’re not going to be using your key fob for an extended period, remove the battery to prevent it from draining.

Beyond the Battery: Other Key Fob Issues

While a dead battery is the most common reason for a malfunctioning key fob, other issues might arise. These include:

  • Key Fob Not Communicating with the Car: This could be due to a faulty antenna in the key fob or the car.
  • Key Fob Buttons Not Working: This could be a problem with the buttons themselves or the internal electronics.

If you’re experiencing issues beyond a dead battery, it’s best to consult with a certified Subaru mechanic for diagnosis and repair.

Keeping Your Adventures Going

Having a working key fob is essential for enjoying your Subaru Forester adventures. By following these simple steps and understanding the potential causes of key fob issues, you can ensure your adventures remain uninterrupted. Remember, if you’re experiencing persistent problems, seeking professional assistance is always a good idea.

Q: How long does a Subaru Forester key fob battery last?

A: The lifespan of a key fob battery can vary depending on usage and environmental factors. Typically, they last around 1-2 years.

Q: What happens if I use a different type of battery?

A: Using a different type of battery can damage your key fob. Stick to the recommended CR2032 battery.

Q: Can I replace the battery myself?

A: Yes, you can replace the battery yourself. It’s a simple procedure that doesn’t require any special tools.

Q: How do I know if my key fob is faulty?

A: If the key fob doesn‘t respond to your commands, even after replacing the battery, it might be faulty. Consult a Subaru mechanic for diagnosis.

Q: What should I do if my key fob is damaged?

A: If your key fob is damaged, you’ll need to get it repaired or replaced. Contact your local Subaru dealership or a certified mechanic.

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BJ
About the Author
My name is Bob Jenkins and I'm thrilled to share my automotive adventures with you here on mphdiary.com. Cars have always been a passion of mine, especially sporty yet practical Japanese models. For the past 10 years, I've been driving various Nissan vehicles and am constantly enjoying learning more about...