What Battery Does a Subaru Key Fob Take? A Complete Guide to Ensure Proper Functionality

Ever found yourself stranded outside your Subaru, desperately clicking your key fob to no avail? Frustrating, right? But fear not, because in this article, you’re about to uncover the simple solution to this common conundrum. Have you ever wondered what battery your Subaru key fob actually needs to get you back on the road? Well, you’re in the right place!

Exploring the Subaru Key Fob

When it comes to the Subaru key fob, understanding its operation is key. It’s the small device that allows you to remotely access your vehicle with ease.

  • Is equipped with electronic circuitry
  • Utilizes a battery to power its functions
  • Facilitates keyless entry and keyless ignition

Regularly maintaining the Subaru key fob ensures uninterrupted functionality. Remember to replace the battery promptly upon noticing any signs of weakening power.

Next, we’ll uncover the specific battery needed for your Subaru key fob to keep you seamlessly connected to your vehicle.

Importance of Knowing the Correct Battery

When it comes to your Subaru key fob, knowing the correct battery type is crucial for maintaining its functionality. Here’s why it’s so important:

  • Compatibility: Using the right battery ensures seamless compatibility with your key fob, preventing any issues with connectivity to your vehicle.
  • Longevity: The correct battery type can prolong the lifespan of your key fob, reducing the frequency of replacements and saving you time and money.
  • Performance: A compatible battery helps your key fob operate at its best, providing reliable keyless entry and ignition functions when you need them the most.

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Remember, getting the right battery for your Subaru key fob is a simple yet essential step in ensuring that your key fob works efficiently and reliably.

Identifying the Battery Type

When it comes to Subaru key fobs, it is crucial to identify the correct battery type to ensure optimal performance. Here are some steps to help you identify the right battery for your Subaru key fob:

  • Check the Owner’s Manual: Start by consulting your Subaru’s owner’s manual. It typically contains detailed information on the type of battery required for your key fob.
  • Inspect the Current Battery: If possible, open the key fob and inspect the current battery. The battery type is usually imprinted on the battery itself.
  • Research Online: You can also search online using your key fob’s model number to find the specific battery type needed.
  • Visit a Subaru Dealership: If you’re unsure, visit a Subaru dealership. They can provide you with the correct battery and even assist with the replacement if needed.
  • Take Note of Battery Codes: Pay attention to battery codes such as CR2032 or CR2025. These codes specify the battery size and type required for your key fob.

Ensuring you have the correct battery type for your Subaru key fob is essential for maintaining its functionality and avoiding unexpected issues.

Replacing the Battery

When it’s time to replace the battery in your Subaru key fob, it’s essential to use the correct type to ensure it functions properly. Here’s a straightforward guide to help you through the process:

  • Step 1: Locate the Battery Compartment – Look for the small slot or button on your key fob that releases the battery cover.
  • Step 2: Remove the Old Battery – Carefully take out the old battery and avoid touching the circuitry to prevent damage.
  • Step 3: Identify the Battery Type – Check the existing battery for a code, such as CR2032 or CR2025, to determine the replacement needed.
  • Step 4: Get the Right Battery – Purchase a new battery of the same type from a reputable source to guarantee quality.
  • Step 5: Insert the New Battery – Place the new battery in the correct orientation, ensuring it fits snugly into the compartment.
  • Step 6: Close the Cover – Gently press the battery cover back into place until it clicks securely.

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By following these simple steps, you can easily replace the battery in your Subaru key fob and maintain its functionality without any hassle.

Testing the Key Fob

When you’ve replaced the battery in your Subaru key fob, you’ll want to test it to ensure everything’s working as it should. Here’s what you should do:

  • Step 1: Stand near your vehicle and press the buttons on the key fob.
  • Step 2: Make sure the fob responds by locking and unlocking the car.
  • Step 3: Test other buttons, like the trunk release or panic alarm, to confirm all functions are working.
  • Step 4: If the key fob isn’t working properly, recheck the battery installation or consider replacing the battery with a new one.

It’s essential to test the key fob after changing the battery to avoid any surprises when you really need it.


Ensuring you use the right battery for your Subaru key fob is crucial for maintaining its functionality. By following the steps outlined in this guide, you can easily replace the battery without damaging the circuitry. Remember to test the key fob after replacement to confirm that it works correctly. Taking these simple steps will help you avoid any inconveniences with your key fob in the future.

Frequently Asked Questions

1. Why is it essential to use the correct battery type in a Subaru key fob?

Using the correct battery type ensures proper functionality and prevents damage to the key fob.

2. How do I replace the battery in a Subaru key fob?

Locate the battery compartment, remove the old battery without damaging the circuitry, identify the correct battery type (e.g., CR2032 or CR2025), purchase a quality replacement, insert the new battery correctly, and securely close the cover.

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3. What should I do after replacing the battery in my key fob?

Test the key fob by standing near the vehicle, pressing the buttons to check locking and unlocking, test other functions like trunk release or panic alarm, and troubleshoot if needed to ensure proper operation.

Battery industry professional with 5+ years of experience. Bachelor of Science in Electrical Engineering from Georgia Tech. Specializes in power systems and renewable energy.

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