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How to Replace Subaru Key Fob Battery

Has your Subaru key fob been giving you issues? Maybe it is taking its time unlocking the doors, or it is not working completely. No need to be concerned – the issue can be resolved quite easily.

More often than not, the issue is simply a dead . There is no need to visit or call the car shop for assistance. In fact, you can complete it yourself in approximately five minutes. If you own certain models like an Outback, Forester, Crosstrek, Impreza, Legacy or even a WRX, this guide will assist you in replacing the Subaru key fob battery with ease.

So, why spend both time and money? Simply replace the battery, and your remote will work without issues!

How to find out if your Subaru key fob battery requires replacement?

Is your Subaru Key Fob not working? This is an indication that your battery can be weak.

Here how you know whether it is time to change it:

  • The fob does not lock or unlock your car.
  • It only works sometimes (not every press).
  • You see a warning on your (push-start model).

Most of the key fob batteries lasts for about 2 years, but it can vary depending on use.

If you notice these signs, it is a time for a Subaru key fob replacement.

What You Need Before You Start:

Before changing the battery, prepare your equipment. You will need a CR2032 battery. This is the most common Subaru key fob battery size. You can find most stores or online.

Next, grab a small flat screwdriver or a coin. You will use it to open the key fob. Work on a clean table so that you do not lose small parts.

Optional: Wear gloves to keep your skin oil away from the new battery. This helps it to last long. That’s it! You are ready to change your CR2032 battery for Subaru Key.

How to Know Your Subaru Key Fob Type?

Before starting, check what type of fob you have. Subaru uses two main types.

1. Standard Key Fob (Non-Push-Start)

  • There are only buttons, the car has no start/stop buttons
  • You put a key to start the
  • Usually small in size
  • Often have a visible ring hole

2. Smart Fob (Push-Button Start)

  • Works with push-button start cars
  • You have fob in your pocket to start a car
  • Inside is a hidden key (called a mechanical key)
  • Looks smooth and round

Knowing your FOB type helps you choose the right method to change the battery. Both use a CR2032 battery, but how you open them, it is a bit different. This guide works for all types of Subaru Key Fobs including Subaru Smart Key Battery.

Here’s the Step By Step Method to Change Subaru Key Fob Battery:

It is very simple to change the key fob battery of Subaru vehicles. All you need to do is follow the provided instructions carefully.

Standard Key Fob:

First of all remove the metal key from the key fob. Then with the help of flat-head screwdriver, carefully open the case. Now its the time to replace the old battery.

Insert the new battery ensuring the positive terminal faces upside. After which you need to close the key fob tightly, you will hear a click sound. Check by locking and unlocking your car.

For Smart Key Fob (Push to Start)

Push at the back to release the latch. Afterwhich open the fob using small notch present in the topside. Its time you remove the old battery and place the new one, ensuring positive side faces up.

Put back the cover until a snapping sound comes. Check if all the buttons functions properly or not.

Do not make these Key Fob Battery Mistakes

The battery is easy to replace, but small mistakes can lead to larger Subaru key fob battery issues. A common mistake is turning the battery upside down. If the positive side ( +) is not facing correctly, your fob will not work. Always check the battery before closing the case.

Another mistake is touching the battery with your naked fingers. Your skin can leave oil on it. This can prevent the battery from doing the right thing. Use gloves or grab the edges only. Some people also do not close the key fob in all ways. If the case is not tight, the button cannot work. Make sure it clicks and fits perfectly.

Also, do not use the wrong battery. Subaru phobs usually require a CR2032 battery. Using incorrect can damage the fob or simply not work. Double-check the battery number before starting your DIY Subaru battery replacement.

When to Replace Entire Subaru Key Fob

In some cases, problems related to key fobs are not as simple as changing the battery. These are the signs to look out for to change the key fob if the Subaru key is not responding post battery swap:

  • The buttons appear to be stuck, cracked, or don’t recess properly.
  • The fob is defective and has gotten wet, or there is internal rust.
  • Even with a new battery, the vehicle fails to recognize the key.
  • The case is damaged and will not securely close.

If any of these problems apply, you might require a complete Subaru key fob replacement.

Conclusion

A Subaru key fob battery fix is a quick, easy, and saves you money. You do not need to go to the car shop or call for help. Just a new CR2032 battery and with a few minutes, your key fob will work like new!

Whether you run a Subaru Outback, Forester, Crosstrek, or WRX, this guide works for you. Just follow the steps, avoid mistakes, and you are all sets. Now when you know how to do Subaru key battery replacement, you will always be ready when the battery runs low.


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