Unlocking the Mystery of Subaru Replacement Keys: Why Resetting is Crucial

As a Subaru owner, losing or damaging your car keys can be quite frustrating. While you can always get a replacement key, programming it to work with your car can be a daunting task. If you find yourself in such a situation, resetting your replacement key may be the solution you need. In this article, we will explore why resetting is crucial when programming Subaru replacement keys, common problems faced by car owners, and easy solutions to try when you encounter these issues.

Why Resetting is Crucial When Programming Subaru Replacement Keys

Before we dive into the reasons why you should reset your Subaru replacement key, let’s first understand what happens during programming. Programming a replacement key involves synchronizing it with your car’s system to ensure it can start and unlock your Subaru. However, the process might fail, resulting in a failed key or a key that works improperly.

That’s where resetting comes in. Resetting your Subaru replacement key wipes the existing programming and synchronizes it with your car’s system afresh. This ensures that the new key works correctly and that you avoid unnecessary issues down the line.

One common reason to reset your replacement key is if it’s from a different car. Such keys may have the wrong transmitter frequency, which causes communication errors with your car’s system, leaving you with a non-functional key. Resetting the key ensures it’s programmed to your car’s specifications, making it fully operational.

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Common Problems Faced by Subaru Car Owners

As a Subaru car owner, some of the common key and key fob issues you may face include:

  1. A dead key fob battery – It’s normal for the battery in your key fob to wear out after some time. A dead battery, however, prevents the key fob from working as it should.

  2. Key fob programming failure – If the programming process fails, you’ll have a non-functional key fob.

  3. Ignition barrel failure – Problems with the ignition barrel often occur due to wear and tear or as a result of using the wrong key.

  4. Non-functional buttons or broken key fob – Keys or key fobs can break or fail, rendering them useless.

  5. Lost or stolen keys – Losing your keys or having them stolen can leave you stranded unless you have a spare.

Easy Solutions to Reset Your Subaru Keys

Resetting your Subaru replacement key is relatively easy and can be done by anyone, regardless of their level of technical skill. Here are some steps to help you reset your key fob:

  1. Try using the second key fob – If your car comes with two key fobs, try using the second key fob to see if it works. If it does, it’s likely that the problem is with the first key fob.

  2. Replace the key fob battery – If the key fob battery is dead, replace it with a new one, and try to start your car again.

  3. Disconnect the car battery – Disconnecting your car battery for a few minutes and then reconnecting it can help reset your car’s system, which may solve the key fob issue.

  4. Reset the key fob – You can reset your key fob by opening the key casing and removing the battery for a few minutes before replacing it.

  5. Seek professional help – If your key fob or key is beyond repair, consider seeking professional help. A qualified Subaru technician can offer you the best service and may provide you with a new key or key fob.

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Frequently Asked Questions

Can I program my Subaru replacement key myself?

Yes, you can program your Subaru replacement key yourself. You can find instructions on how to do this in your owner’s manual, or you can search for them online.

Can I use a non-Subaru replacement key for my car?

It’s not advisable to use non-Subaru replacement keys. Such keys may have the wrong transmitter frequency and cause communication errors with your car’s system, leaving you with a non-functional key.

How do I know if my key fob battery is dead?

If your key fob stops working, chances are the battery is dead. Replace the battery to see if it fixes the problem.


In conclusion, resetting your Subaru replacement key is crucial for ensuring your keys function properly and avoiding unnecessary issues down the line. While key fob and key issues are common among Subaru car owners, you can try some easy solutions to reset your keys before seeking professional help. Remember, it’s always advisable to use genuine Subaru replacement keys to avoid compatibility issues.

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Billy Covington

With a passion for all things automotive, Billy is our go-to expert on Subaru performance upgrades and modifications. He's been featured in several car magazines and blogs, and his extensive knowledge and expertise make him a valuable member of our team. When he's not working on cars, he enjoys playing guitar and writing music.

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