DIY Guide: How to Replace Battery in Your 2016 Subaru Forester Key Fob

If you are a proud owner of a 2016 Subaru Forester, you may have noticed that your key fob is starting to lose its effectiveness. This is a common problem, and the reason behind it could be a faulty battery. Replacing the battery in your key fob is a simple task that can be done in a few easy steps. In this DIY guide, we will walk you through the process.

Why Should You Replace Your 2016 Subaru Forester Key Fob Battery?

A dead battery in your key fob can cause various frustrations and inconveniences. Your key fob may no longer respond to your commands, leaving you to use the manual key entry. Replacing the battery in your key fob is a cost-effective way of resolving this issue. Here are the benefits of replacing the battery yourself:

  • Saves Time: Replacing the battery takes less than 10 minutes. You don’t have to wait for a mechanic’s appointment or spend time at the dealership.
  • Saves Money: The cost of replacing the battery is minimal. Replacing the battery yourself will save you money.

The Steps to Replace Your 2016 Subaru Forester Key Fob Battery

Let’s dive into the key steps involved in replacing the battery:

Step 1: Locate the Battery Compartment

The first step is to locate the battery compartment on your key fob. Look for a small indentation on the side of your key fob. Insert a flat object like a coin or a screwdriver into the slot and gently pry it open.

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Step 2: Open the Battery Compartment Safely

Once you have located the battery compartment, use a screwdriver to open the compartment. Be cautious not to damage the compartment’s plastic casing.

Step 3: Remove the Old Battery

Now that you have opened the compartment, remove the old battery. Use a pair of tweezers to remove the old battery to avoid getting fingerprints or oil on the new battery.

Step 4: Replace the Battery with a New One

Insert the new battery into the compartment. Ensure that the positive side (+) is facing upwards. Use your fingers or a screwdriver to snap the compartment’s cover into place.

Step 5: Test Your Key Fob

Press the buttons on your key fob to check if everything is working correctly. You have successfully replaced the battery in your 2016 Subaru Forester Key Fob.

Tips for Ensuring Proper Battery Placement and Key Fob Functionality

  • Make sure that the battery compartment is clean and free of dust or debris before inserting the new battery.
  • Ensure that the positive side (+) of the battery is facing upwards.
  • Use a screwdriver or your fingers to snap the compartment securely.
  • If your key fob is still not working, check the battery’s placement and ensure that the compartment is firmly locked.


Q: How often should I replace the battery in my 2016 Subaru Forester Key Fob?
A: Key fob battery life varies significantly depending on usage. However, you should replace them every three years or so.

Q: Which battery size should I use for my 2016 Subaru Forester key fob?
A: The recommended battery size for your key fob is CR1620.

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Q: Can I replace the battery in my Subaru Forester Key Fob myself?
A: Yes, anyone can replace the battery in their key fob. It’s a simple task that can be done in a few minutes.


Replacing the battery in your 2016 Subaru Forester Key Fob is a simple, cost-effective way to resolve any key fob issues you may be experiencing. This guide has outlined the simple steps involved in replacing the battery, and we hope you find it helpful. Remember to follow the tips outlined in this guide and enjoy all the benefits of a fully functional key fob.

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Alton Brobst

As a longtime Subaru enthusiast, Alton brings a wealth of knowledge and experience to our blog. From his early days of tinkering with engines to his current role as a certified Subaru technician, Alton has seen it all when it comes to Subarus. When he's not working on cars, he enjoys hiking and exploring the great outdoors.

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