DIY Guide: How to Change the Battery in Your Subaru Key Fob

Are you having trouble unlocking and locking your Subaru car using your key fob? It could be an indicator that the battery is running low and needs replacement. In this article, we will guide you with step-by-step instructions on how to change the battery in your Subaru key fob. You don’t need to spend money or waste time at a dealership or a mechanic for this simple maintenance task.

Tools Needed

Before we begin with the actual process, you should prepare the necessary tools. The following tools are recommended for a hassle-free battery replacement:

  • A replacement battery (make sure it is compatible with your Subaru key fob)
  • A small flat head screwdriver or a plastic pry tool
  • A clean cloth or towel

Types of Batteries Compatible with Your Subaru Key Fob

There are different types of batteries in the market, but not all are compatible with your Subaru key fob. The type of battery required for your key fob depends on the model and the year. The most common battery types for Subaru key fobs are CR1620 and CR2032. You can check your owner’s manual or the battery itself for the correct battery type.

See also  Can MapQuest be Loaded on My Subaru?

Step-by-Step Instructions for How to Replace the Battery

Here are the simple, easy-to-follow steps on how to replace the battery in your Subaru key fob:

  1. First, use a small flat head screwdriver or a plastic pry tool to gently remove the key from the key fob.

  2. Then, use the same tool to gently pry open the key fob case. Be careful not to damage the case or the circuit board.

  1. Once the key fob is open, locate the battery. Use your fingers or the pry tool to remove the old battery.

  2. Take the replacement battery and insert it into the same slot as the old battery. Make sure the battery is facing the right way (usually with the positive side facing up).

  3. Close the key fob case by aligning the two halves and gently snapping them together.

  4. Finally, put the key back into the key fob until it clicks in place.

Tips and Tricks to Ensure a Successful Replacement

To ensure a successful battery replacement in your Subaru key fob, here are some tips and tricks to keep in mind:

  • Use only the recommended battery type for your key fob.
  • Be gentle when opening the key fob case to avoid damage.
  • Make sure the battery is inserted in the correct orientation.
  • Test the key fob after replacing the battery to check if it’s working correctly.

Mistakes to Avoid

Avoid the following mistakes when changing the battery in your Subaru key fob:

  • Using the wrong tool to pry open the key fob case, which may cause damage.
  • Putting the battery in the wrong way, which can prevent the key fob from working.
  • Forgetting to test the key fob after the battery replacement.
See also  Subaru's Plans to Reopen in the Wake of Covid-19: How the Pandemic Has Impacted the Brand

Frequently Asked Questions (FAQ)

How often should I replace the battery in my Subaru key fob?

The frequency of battery replacement usually depends on the usage of the key fob. However, on average, it’s recommended to replace the battery every two to three years.

Can I use any battery in my Subaru key fob?

No, it’s essential to use the recommended battery type for your key fob.

What should I do if my key fob still doesn’t work after replacing the battery?

If your key fob still doesn’t work after replacing the battery, you may need to reprogram it or contact a Subaru technician for assistance.


Changing the battery in your Subaru key fob is a simple and easy maintenance task that you can do yourself. By following the step-by-step instructions and tips and tricks provided in this article, you can save time and money. Take good care of your key fob, and it will always serve its purpose, ensuring convenience and security for your Subaru car.

Avatar photo

Joseph Weaver

With a background in engineering and a passion for cars, Joseph brings a unique perspective to our blog. He's particularly interested in the technology and innovation behind Subaru's advanced safety features, and his articles on this topic are always insightful and informative. When he's not writing, he enjoys playing video games and spending time with his family.

Recommended Articles