Change Key Fob Battery 2009 Subaru Forester

Changing your 2009 Subaru Forester key fob battery is a quick and easy process that can save you time and money. This guide will walk you through the steps to replace the battery, troubleshoot common issues, and provide valuable tips for maintaining your key fob.

How to Change Your 2009 Subaru Forester Key Fob Battery

Replacing the battery in your 2009 Subaru Forester key fob is straightforward. Here’s a step-by-step guide:

Locate the small slot on the side of your key fob. This slot is specifically designed for releasing the key from the fob.
Insert the key or a small flathead screwdriver into the slot and gently twist. This will separate the two halves of the key fob casing.
Carefully pry open the fob casing. Be gentle to avoid damaging the internal components.
Identify the old battery. It’s typically a CR2032 3V lithium battery.
Using a small flathead screwdriver or your fingernail, carefully remove the old battery. Pay attention to the orientation of the battery.
Insert the new CR2032 battery, making sure the positive (+) side is facing upwards. Double-check the orientation to ensure a proper connection.
Snap the two halves of the key fob casing back together. Ensure they fit securely.
Test the key fob functionality. Try locking and unlocking your car to confirm the new battery is working.

Common Key Fob Issues and Troubleshooting

Sometimes, even after replacing the battery, your key fob might not work correctly. Here are some common issues and how to address them:

Key Fob Not Working After Battery Replacement: Ensure the new battery is correctly installed and has a sufficient charge. Try reprogramming the key fob to the car (more on this below).
Key Fob Intermittently Working: This could indicate a loose connection inside the key fob or a failing battery. Check the battery contacts for corrosion and clean them if necessary.
Key Fob Buttons Sticking: Over time, the buttons can become sticky or unresponsive. Try cleaning them with a soft cloth and isopropyl alcohol.

Reprogramming Your 2009 Subaru Forester Key Fob

If your key fob still doesn’t work after replacing the battery, you might need to reprogram it. Consult your owner’s manual for specific instructions, as the process can vary. Generally, it involves a sequence of actions within your car, such as turning the ignition on and off a certain number of times.

Maintaining Your Subaru Forester Key Fob

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

Avoid dropping your key fob. Impacts can damage the internal components.
Keep your key fob dry. Exposure to moisture can corrode the battery and circuitry.
Replace the battery every 2-3 years, or sooner if you notice the range decreasing.

Conclusion

Changing the key fob battery in your 2009 Subaru Forester is a simple task that anyone can do with the right tools and instructions. By following this guide and performing regular maintenance, you can ensure your key fob continues to function reliably for years to come. Remember, a working key fob is essential for the security and convenience of your vehicle.

FAQs

What type of battery does a 2009 Subaru Forester key fob use? A CR2032 3V lithium battery.
How often should I change my key fob battery? Every 2-3 years, or sooner if the range decreases.
What do I do if my key fob still doesn’t work after replacing the battery? Try reprogramming the key fob. Your owner’s manual should have instructions.
Where can I buy a replacement CR2032 battery? Most electronics stores, pharmacies, and online retailers sell CR2032 batteries.
Can I damage my key fob by changing the battery myself? It’s unlikely, but be gentle when opening the casing and handling the internal components.
How do I know if my key fob battery is low? The range of the key fob might decrease, or the car might not respond to the key fob consistently.
Is there a way to test my key fob battery without replacing it? You can use a multimeter to check the voltage of the battery.

Common situations and questions:

My key fob is completely dead, what should I do? First, replace the battery. If it still doesn’t work, attempt reprogramming. If that fails, contact a Subaru dealership or a qualified locksmith.
My key fob only works sometimes. Is it the battery or something else? It could be a weak battery, corroded contacts, or a more serious internal issue. Try cleaning the contacts and replacing the battery. If the problem persists, seek professional help.
My key fob buttons are hard to press. What can I do? Try cleaning the buttons with a soft cloth and isopropyl alcohol.