Picture this: you’re rushing to a meeting, reach for your keys, and the key fob doesn’t work. Panic sets in, right? Your car won’t unlock, and you’re suddenly stranded. This frustrating situation highlights the importance of a working key fob, and the most common culprit is a dead battery. This guide provides a step-by-step approach to help you, the reader, understand and learn how to replace Subaru key fob battery. We’ll explore the process in detail, giving you the knowledge and confidence to solve this problem yourself. You’ll gain practical skills, save money, and avoid unnecessary trips to the dealership.

Prepare to Replace the Key Fob Battery

Before beginning the process of replacing your Subaru key fob battery, it’s critical to gather the necessary tools and information. This ensures a smooth and successful replacement. Failing to prepare can lead to frustration and potential damage to your key fob. Proper preparation also allows for a safer procedure, reducing the chance of injury or damaging your device. By understanding the required components and processes, you are significantly more likely to succeed. This preparation makes the entire process efficient.

Gathering Essential Tools and Materials

The first step involves assembling the necessary items. These tools are straightforward and readily available, often found around the house or at a local hardware store. Having everything ready saves time and prevents interruptions during the battery replacement process. These are the tools you’ll need.

• New Battery: The most vital element. Consult your Subaru’s manual or search online to determine the correct battery type for your specific key fob model. Commonly used batteries include CR2032 or CR1632.
• Small Flathead Screwdriver or Pry Tool: This tool will assist in opening the key fob’s casing without causing damage. A very small, thin screwdriver or a plastic pry tool works best.
• Soft Cloth: A clean cloth to protect the key fob’s exterior from scratches.
• Gloves (Optional): If you prefer, wearing gloves can help keep the key fob clean and prevent fingerprints.

Collecting these tools before getting started is important. This practice allows you to work without interruption and ensures the process goes as smoothly as possible. Preparing will also protect your key fob from scratches and other forms of damage. Having all the items ready can prevent a lot of frustration.

Identifying the Correct Battery Type

Choosing the correct battery type is key to making sure your key fob functions correctly. Using the wrong battery could result in the key fob not working at all, and it might even damage the device. The battery type varies based on the year and model of your Subaru. Therefore, you should always consult either your owner’s manual or a reliable online resource before beginning.

• Consult the Owner’s Manual: Your Subaru’s manual typically lists the correct battery type for your key fob. This is the most reliable source for the information you require. Look for the section on key fob maintenance.
• Check the Existing Battery: If you can safely remove the old battery (after opening the key fob), you can check the battery’s markings.
• Use Online Resources: Websites like YouTube or online car forums provide model-specific instructions for how to replace subaru key fob battery, including battery type information.

Double-checking the battery type ensures the key fob will work. When in doubt, it is best to err on the side of caution. Confirming the battery type minimizes the chance of buying the incorrect battery. This step is a small step, but it is important to prevent problems later on.

Opening the Subaru Key Fob

Once you’ve collected the necessary tools and the correct battery, the next step involves opening your Subaru key fob. This process will vary slightly depending on your key fob’s specific design, but the basic steps are largely the same. It is crucial to proceed carefully to avoid damaging the key fob. Patience and caution are key during this step to safely access the battery compartment.

Locating the Access Point

The first task is to identify where you’ll the key fob’s halves come together. This point might be a small slot, indentation, or a seam running along the edge. The location can differ depending on the model.

• Inspect the Key Fob Carefully: Look around the edges of your key fob for a seam or slot.
• Check for Release Buttons or Hidden Latches: Some key fobs include a button to release a key or a small latch.
• Refer to Online Guides: If you can’t find an obvious access point, check online tutorials for your specific Subaru model.

Taking the time to locate the access point will make the opening process much simpler. By identifying this, you can prevent damaging your key fob. A careful examination will save time and prevent frustration.

Carefully Separating the Key Fob Casing

Once you’ve located the access point, gently insert your flathead screwdriver or pry tool. This step requires care to prevent damaging the plastic casing of the key fob. Applying too much force can cause it to break. The goal is to separate the two halves of the key fob casing without causing any harm to the device.

• Insert the Tool Gently: Place the tool into the access point and gently begin to pry the casing apart.
• Apply Gradual Pressure: Do not force the halves apart. Apply gentle pressure, working around the edges of the key fob.
• Work Around the Seam: Once you’ve created a small gap, work your tool around the edge of the key fob to release any clips or latches.

Proceeding cautiously will prevent damage to your key fob, and it will ensure that you can

Accessing and Removing the Old Battery

With the key fob casing open, you now have access to the battery compartment. This is the part that holds the battery. The layout will vary, but usually, the battery is held in place by a small plastic clip or holder. Remove the old battery carefully.

• Locate the Battery Compartment: Find the battery holder within the opened key fob.
• Note the Battery’s Orientation: Observe how the battery is placed to properly install the new one.
• Carefully Pry Out the Old Battery: Use the flathead screwdriver or your finger to gently pry the battery free from its holder.

Removing the battery with care will prevent any damage to the internal components. It’s also important to note the battery’s position. This position is the key to installing the new battery properly.

Replacing the Subaru Key Fob Battery

After successfully opening the key fob and removing the old battery, it’s time to insert the new battery. This step is usually straightforward, but ensuring the battery is correctly positioned is crucial for proper functioning. Once the new battery is in, you can close the key fob and test it. This part requires careful attention to the key fob’s design.

Inserting the New Battery

Insert the new battery into the battery compartment. The battery should slide in easily. Make sure you’re placing it in the same orientation as the old battery. If the battery doesn’t fit easily or seems forced, it is best to check the battery’s orientation or battery type. Take your time to make sure that the new battery is securely in place.

• Align the Battery: Make sure the positive (+) and negative (-) terminals of the new battery line up correctly.
• Gently Slide the Battery In: Carefully insert the new battery into the compartment, ensuring it’s seated properly.
• Double-Check the Fit: Ensure the battery is secure and not loose within the compartment.

The proper installation of the new battery is essential for functionality. The right orientation and a secure fit are key to ensuring the key fob functions correctly. Paying close attention during this step will save time and frustration.

Closing the Key Fob Casing

After the new battery is properly inserted, you can put the key fob back together. This involves reattaching the two halves of the casing. Make sure that the casing is properly aligned before snapping it back together. Take your time to ensure that the key fob is properly sealed.

• Align the Casing Halves: Make sure the two halves of the key fob casing are correctly aligned.
• Press the Casing Together: Gently press the two halves together, starting from one edge, until they snap together.
• Check for Proper Closure: Ensure that the casing is completely sealed, with no gaps or loose parts.

When the casing is properly closed, it helps protect the internal components of the key fob. It is best to take your time to make sure it is completely sealed. A correctly assembled key fob will prevent damage and ensure longevity.

Testing the Key Fob’s Functionality

Once you have replaced the battery and closed the key fob casing, the last step is to test the key fob. This will confirm that the replacement was successful. Test the lock, unlock, and any other functions your key fob has to make sure everything works correctly. If it doesn’t work right away, there might be a simple fix.

• Test the Lock/Unlock Buttons: Test your car’s locking and unlocking functions to confirm the key fob is working.
• Check Other Features: If your key fob has other functions, such as remote start, test those as well.
• Troubleshooting: If the key fob still doesn’t work, refer to the troubleshooting steps (listed in the next section).

Testing the key fob confirms the battery replacement was successful. It confirms that the device is functioning correctly. If it doesn’t work immediately, don’t worry. There may be a solution that requires a simple fix. Quick troubleshooting will get you back on the road in no time.

Troubleshooting Key Fob Issues

If your key fob still does not work after the battery replacement, you can follow a few troubleshooting steps. These steps can help you identify and resolve common issues. These troubleshooting steps can often save you a trip to the dealership. By going through these, you can restore your key fob’s function.

Common Problems and Solutions

Sometimes, even after replacing the battery, the key fob may not function. This could be due to a simple issue that is easy to fix. The following points cover some of the most common issues you might encounter and provide solutions. Often, they are quite easy to resolve, allowing you to quickly restore your key fob’s functionality.

• Incorrect Battery Type: If the key fob isn’t working, double-check the battery type against your Subaru’s manual.
• Improper Battery Installation: Make sure the battery is correctly oriented within the key fob.
• Key Fob Synchronization: Some key fobs may require synchronization after a battery replacement. Refer to your Subaru’s manual for instructions.
• Damaged Key Fob: Check the key fob for physical damage, such as cracks or water damage.

This troubleshooting information is useful for resolving typical problems. It ensures you can get your key fob working as quickly as possible. Taking these steps can save you time and prevent unnecessary trips to the dealership.

Resetting or Reprogramming Your Key Fob

Sometimes, the key fob might require resetting or reprogramming after a battery change. The process varies depending on your Subaru model. Refer to your owner’s manual for specific instructions on how to reset or reprogram your key fob. This is usually a simple process, and it can solve persistent issues.

• Consult Your Owner’s Manual: Refer to the section on key fob programming.
• Follow the Instructions: Follow the manufacturer’s directions for your specific model.
• Test the Key Fob: After resetting or reprogramming, test the key fob to make sure it works.

Sometimes a reset or reprogramming step may be needed to restore the key fob’s function. This may include instructions for activating or synchronizing the key fob with your vehicle. This can fix issues that don’t respond to other solutions. Following these directions will quickly resolve any problems.

Advanced Subaru Key Fob Considerations

While the basic process of replacing the battery is relatively straightforward, some advanced considerations may arise. This section addresses potential complications and offers tips for more complex situations. These situations may require you to apply the information you’ve learned. Considering these considerations helps provide a complete picture of the replacement process.

Understanding Key Fob Models and Technologies

Subaru key fobs come in different models, including standard key fobs, key fobs with remote start, and even smart key fobs. Each model may use different technologies, which can influence the battery replacement process. Understanding these technologies is useful for addressing potential issues. This knowledge helps you understand the intricacies of each key fob.

• Standard Key Fobs: These key fobs are the simplest, typically just for locking and unlocking the car.
• Key Fobs with Remote Start: These have a remote start function.
• Smart Key Fobs: These fobs use proximity sensors for keyless entry and ignition.
• Bluetooth or RFID Technology: Some modern key fobs may use Bluetooth or RFID technology for communication with the car.

Understanding these different key fob types will help you better understand their features and requirements. Knowing these different models can help you in the replacement process. Knowing the specific model of your key fob will ensure a successful battery replacement.

Dealing with Water Damage

If your key fob has come into contact with water, it could cause internal damage, potentially affecting its function. Water damage can corrode the electronic components, leading to malfunctions. If your key fob has been exposed to water, it is best to act quickly to minimize the damage.

• Dry the Key Fob Immediately: Remove the battery, and dry the interior with a soft cloth.
• Consider Professional Repair: If the key fob is severely damaged, consider having it professionally repaired.
• Preventative Measures: Store your key fob in a dry place to prevent exposure to water.

Water damage can affect the operation of your key fob. Quickly drying the device can prevent long-term damage. While it is possible to attempt repairs on your own, it is best to seek professional help for severe damage.

Dealing with Battery Corrosion

Battery corrosion can sometimes occur inside the key fob, particularly if the battery leaks. This can damage internal components and affect the key fob’s function. Corrosion is a sign that the battery needs to be

• Examine the Key Fob: Carefully check the battery compartment for any signs of corrosion.
• Clean the Corrosion: Use a cotton swab dipped in isopropyl alcohol to clean any corrosion.
• Replace Corroded Components: If there’s severe corrosion, it may be necessary to replace any damaged components.

Corrosion may indicate the need for more than a simple battery replacement. When found, it is important to remove it carefully. In some cases, it may require some cleaning to restore the key fob’s functionality. This process helps extend the life of your key fob.

Frequently Asked Questions

Question: How often should I replace my Subaru key fob battery?

Answer: It is advisable to change your key fob battery every 1-2 years, or sooner if the key fob starts to function unreliably.

Question: Where can I buy a replacement battery for my Subaru key fob?

Answer: You can find replacement batteries at most auto parts stores, hardware stores, or online retailers like Amazon.

Question: Can I damage my key fob while changing the battery?

Answer: It is possible to damage your key fob, so it’s critical to be careful. Be gentle when opening the casing and avoid excessive force.

Question: Will I need to reprogram my key fob after replacing the battery?

Answer: In most cases, you will not need to reprogram the key fob after replacing the battery. However, in some situations, you might. Check your owner’s manual for specific instructions.

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

Answer: Try the troubleshooting steps mentioned in this guide, such as checking the battery’s orientation, inspecting for damage, and checking for a reset or reprogramming step.

Final Thoughts

You now possess the know-how to handle a dead key fob battery. You’ve explored the process, starting with gathering the right tools, identifying the correct battery type, and then opening, replacing, and closing the key fob casing. You also considered the troubleshooting steps to resolve any issues. You’ve also gained a clear idea of advanced considerations.

By learning how to