How to change battery in subaru key fob – As keyless entry systems become increasingly prevalent, it’s not uncommon for issues to arise with our trusty Subaru key fobs. When the battery in your Subaru key fob is running out of juice, it can lead to a series of problems – from difficulty unlocking your car to complete system failure. But fear not, as changing the battery in your Subaru key fob is a relatively straightforward process that even the most DIY-phobic amongst us can accomplish.
In this comprehensive guide, we’ll walk you through the step-by-step process of replacing your Subaru key fob battery. From understanding the basics of Subaru key fob battery replacement to troubleshooting common issues and maintaining your key fob to extend the life of the battery, we’ve got you covered.
Understanding the Basics of Subaru Key Fob Battery Replacement
Replacing the battery in your Subaru key fob is an essential step to ensure the vehicle’s security and functionality. A dead key fob battery can lead to inconvenience, especially in emergency situations when you need to start your car. Therefore, it is crucial to replace the battery properly to ensure your key fob continues to function correctly. Subaru key fobs use specialized batteries that are designed to meet the unique requirements of the vehicle’s systems.
The two main types of batteries used in Subaru key fobs are CR2032 and CR1632. Each has specific requirements, including voltage and capacity, that must be met to ensure proper function. It’s essential to use the correct type of battery to avoid damage to the key fob or vehicle electronics.
Battery Types in Subaru Key Fobs
Subaru key fobs typically use the following battery types:
- CR2032: This battery type is commonly used in Subaru key fobs. It has a voltage of 3 volts and a capacity of 22 milliampere-hours (mAh).
- CR1632: This battery type is also used in some Subaru key fobs and has a voltage of 3 volts and a capacity of 14 mAh.
When choosing a replacement battery, ensure it meets the specifications of your key fob. Using a battery with the wrong voltage or capacity can cause damage to the key fob or vehicle electronics.
Replacing the Battery in a Subaru Key Fob
Replacing the battery in a Subaru key fob is a relatively simple process that requires basic tools and caution.
- Open the key fob case by inserting a paper clip or a small flathead screwdriver into the slot between the two halves and prying them apart. Be careful not to damage the internal components.
- Identify the battery and its location. In most cases, the battery is stored in a small compartment inside the key fob.
- Remove the battery from the compartment and dispose of it properly.
- Insert the new battery into the compartment, making sure it is securely seated and the positive terminal is facing the correct direction.
- Close the key fob case and test the key fob to ensure it is functioning correctly.
Safety Precautions
When working with batteries and electronics, it’s essential to take safety precautions to avoid damage to the key fob or vehicle electronics.
If your Subaru key fob battery is dead, don’t worry, it’s a simple fix like learning how to get rid of foot odor that often catches you off guard by the end of a long day and before you know it, your feet are screaming for attention. To change your key fob battery, locate the small compartment on the back, pry it open, and replace the old battery with a new one; it’s that straightforward.
- Use caution when handling the key fob and batteries to avoid damaging the internal components.
- Make sure the key fob is not exposed to moisture, as this can cause damage to the internal components.
- Dispose of old batteries properly to prevent accidental discharge or fire.
“Replacing the battery in your Subaru key fob is a simple process that requires basic tools and caution. However, using a battery with the wrong voltage or capacity can cause damage to the key fob or vehicle electronics. Therefore, it’s essential to use the correct type of battery to ensure proper function.”
Preparing the Tools and Materials Needed for Battery Replacement
To replace the battery in your Subaru key fob, you’ll need to gather the necessary tools and materials beforehand. This will save you time and ensure a smooth process.
Essential Tools and Materials
To replace the battery in your Subaru key fob, you’ll need a few basic tools and materials. These include:
- A new CR2032 battery, which is the standard battery type used in Subaru key fobs.
- A small screwdriver or a coin, depending on the type of key fob you have.
- A plastic spudger or a similar tool to pry open the key fob case.
- A pair of needle-nose pliers, which can come in handy if the battery is stuck or difficult to remove.
- A soft cloth or a battery replacement tool, depending on the type of key fob you have.
When purchasing a replacement battery, make sure to choose a high-quality battery that matches the specifications of the original battery. You can usually find CR2032 batteries at most electronics or hardware stores.
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Replacing the battery in your Subaru key involves locating the button on the back of the device, pressing it with a paper clip, and then removing the plastic cover, which usually just pulls off.
Special Considerations, How to change battery in subaru key fob
If you have a Subaru key fob with a complex design or unique features, you may need to take additional precautions when replacing the battery. For example, if your key fob has a waterproof or water-resistant coating, you’ll want to handle it with care to avoid damaging the coating.Before starting the replacement process, make sure to inspect the key fob for any visible signs of damage or wear.
If the key fob is damaged, it may be more difficult to replace the battery or may require professional repair.
Purchasing Replacement Batteries
When purchasing a replacement battery for your Subaru key fob, make sure to choose a high-quality battery that matches the specifications of the original battery. You can usually find CR2032 batteries at most electronics or hardware stores.When selecting a replacement battery, look for the following features:
- Capacity: Make sure the battery has a sufficient capacity to power your key fob. A higher capacity battery will provide longer battery life.
- Voltage: Ensure that the battery has the correct voltage rating for your key fob. Most Subaru key fobs require a 3V battery.
- Chemistry: Look for a battery with a high-quality chemistry that will provide reliable performance. Many batteries are made with high-quality lithium or alkaline materials.
- Weight: Consider a battery that is the same weight as the original battery. This will ensure a smooth and reliable operation.
Make sure to purchase a battery that is compatible with your key fob model. You can find the compatible battery type on the manufacturer’s website or in the owner’s manual.
Accessing and Removing the Old Battery from the Key Fob: How To Change Battery In Subaru Key Fob

To replace the battery in your Subaru key fob, it’s essential to follow the correct steps to avoid any damage to the device or the fob itself. The process of accessing and removing the old battery is relatively straightforward, but it does require some care and attention to detail.
Disassembling the Key Fob
Subaru key fobs vary in design, but the basic steps remain the same. The first step is to disassemble the key fob to gain access to the battery.
The battery is usually located in a secure compartment, and you’ll need to remove some screws to access it. For most Subaru models, you’ll find the screws on the back of the fob or on the sides, depending on the design.
- Identify the screws holding the battery compartment in place and use a small screwdriver to remove them.
- Carefully pry open the compartment to avoid any damage to the surrounding components.
- You should now see the old battery inside the compartment.
Safely Removing the Old Battery
When removing the old battery, it’s essential to handle it carefully to avoid any electrical shock or damage to the fob.
The battery is usually held in place by a small clip or wire, and you’ll need to gently pry it out to avoid any damage to the surrounding components.
- Use a pair of tweezers or a small flathead screwdriver to carefully pry the battery away from the clip or wire.
- Be cautious not to touch any of the electrical contacts on the battery or the fob.
- Once the battery is removed, take care to dispose of it properly.
Proper Disposal of the Old Battery
When disposing of the old battery, make sure to follow the proper procedures to avoid any environmental hazards.
The old battery contains toxic materials that can harm the environment if not disposed of correctly.
If the battery is not disposed of properly, it can contaminate soil and water, posing a risk to local ecosystems.
Avoid throwing the battery away with regular household waste, as it can leach toxic chemicals into the environment.
Instead, take the battery to a local recycling center or a designated battery disposal facility.
Installing the New Battery into the Key Fob
Replacing the battery in your Subaru key fob is a straightforward process that can be completed with a few basic tools. To ensure a successful replacement, it’s essential to follow the correct steps and take note of any specific requirements for your vehicle’s model. In this section, we’ll guide you through the process of installing the new battery into your key fob.
Aligning and Securing the New Battery
To install the new battery, you’ll need to align it correctly within the key fob. This typically involves locating the battery compartment and removing any screws or clips that hold the old battery in place. Once you’ve removed the old battery, you can insert the new one, making sure it’s properly seated and secured. Some Subaru models may have a specific alignment procedure or require the use of a battery holder, so be sure to consult your owner’s manual for any specific instructions.For instance, in the Subaru Legacy (2010-2014), the battery compartment is located on the reverse side of the key fob.
To access it, you’ll need to remove a small screw and pry the compartment open. Once inside, you’ll find a small clip that holds the battery in place. Simply remove the clip, and the old battery can be taken out.If you’re unsure about the alignment procedure for your specific vehicle, consult your owner’s manual or online resources, such as the Subaru forums or YouTube tutorials.
- Make sure the new battery is properly seated and secured in the key fob.
- Double-check that the battery holder or clip is securely fastened to prevent the battery from shifting during use.
Testing the Key Fob
Once you’ve installed the new battery, it’s essential to test the key fob to ensure it’s working correctly. To do this, simply press the unlock and lock buttons on the key fob to verify that the remote locking system is functioning properly. If the key fob doesn’t respond or the lock/unlock function malfunctions, it may be due to a faulty battery installation.
In this case, you may need to repeat the installation process or consult a professional mechanic for assistance.If the key fob is working correctly, you can then test the remote starting function (available on select Subaru models) to ensure that it’s functioning as expected. Simply press the remote start button, and the engine should start. If the key fob doesn’t respond, or the engine fails to start, it may be due to a software glitch or a problem with the remote starting system.In summary, replacing the battery in your Subaru key fob is a straightforward process that requires attention to detail.
By following the correct steps, aligning the new battery correctly, and testing the key fob, you can ensure a successful replacement and minimal disruption to your daily routine.
Maintaining Your Subaru Key Fob and Extending the Life of the Battery
Maintaining your Subaru key fob is crucial to its longevity and performance. A well-maintained key fob not only ensures hassle-free access to your vehicle but also helps to prolong the life of the battery.
Regular Cleaning and Storage Tips
Proper cleaning and storage of your key fob can help prevent damage and extend its lifespan. To clean your key fob, gently wipe it with a soft cloth and mild soap solution. Avoid using harsh chemicals or abrasive materials that can damage the key fob’s finish. For storage, consider using a dedicated key fob holder or pouch to protect it from dust and other environmental factors.
This can help prevent damage to the key fob’s internal components.
- Maintain a clean and dry key fob to prevent corrosion and damage.
- Avoid exposing your key fob to extreme temperatures or humidity.
- Store your key fob separately from other items that may cause damage or interference.
Proper Handling and Care
Proper handling and care of your key fob can also help extend its lifespan. When handling your key fob, avoid pressing multiple buttons at the same time, as this can cause wear and tear on the internal components. It’s also essential to store your key fob in a secure location to prevent loss or theft.
Identifying and Addressing Issues
If your key fob is experiencing issues or is no longer functioning properly, it may be time to replace the battery or seek professional help. Signs of a dying key fob battery include erratic button responses, slow response times, or complete loss of functionality. If you’re unable to replace the battery yourself, consider consulting a professional locksmith or Subaru dealership for assistance.
| Issue | Symptoms | Recommended Action |
|---|---|---|
| Battery Issues | Erratic button responses, slow response times, complete loss of functionality | Replace the battery or seek professional help |
| Water Damage | Visible signs of water damage, corrosion, or rust | Consult a professional locksmith or Subaru dealership for assistance |
Troubleshooting Common Issues with Subaru Key Fob Batteries
Subaru key fob batteries are prone to various issues that can leave you stranded or inconvenienced. A dead key fob or erratic behavior can be frustrating, but most problems can be easily resolved with the right troubleshooting techniques and tools. By understanding the causes and symptoms of common issues, you’ll be able to identify the root of the problem and take corrective action.
Dead or Non-Responsive Key Fob
A dead key fob can be caused by a weak or drained battery, but it can also be a sign of a more complex issue. If your key fob refuses to respond, try the following steps:
- Check the battery level: Make sure the battery is not completely drained. If it is, replace it with a new one.
- Reset the key fob: Press and hold the lock and unlock buttons simultaneously for 10 seconds to reset the device.
- Clean the key fob: Dirt and debris can cause connectivity issues. Gently clean the key fob with a soft cloth and wipe it down with a microfiber cloth.
- Replace the battery: If none of the above steps work, it may be time to replace the battery with a new one.
It’s essential to note that some Subaru key fob batteries may have a lifespan of up to 5 years, depending on usage and environmental factors.
Erratic or Unstable Behavior
If your key fob is exhibiting erratic or unstable behavior, such as inconsistent locking or unlocking, it could be a sign of a malfunctioning battery or a hardware issue. To troubleshoot this problem, try the following steps:
- Check the battery level: Make sure the battery is not completely drained.
- Clean the key fob: Dirt and debris can cause connectivity issues.
- Reset the key fob: Press and hold the lock and unlock buttons simultaneously for 10 seconds to reset the device.
- Replace the battery: If none of the above steps work, it may be time to replace the battery with a new one.
Locked or Stuck Key Fob
If your key fob is stuck or locked, it can be a frustrating problem to deal with. To troubleshoot this issue, try the following steps:
- Try to remove the key fob: Gently pull the key fob out of the ignition to see if it becomes unlocked.
- Use a paper clip: Insert a paper clip into the key fob’s locking mechanism to try and dislodge any debris.
- Apply heat: Sometimes, applying heat to the key fob can cause the battery to expand and become loose.
- Replace the battery: If none of the above steps work, it may be time to replace the battery with a new one.
It’s essential to note that some Subaru key fobs may have a specific procedure for unlocking a stuck key fob, so be sure to consult your owner’s manual for guidance.
Last Recap
By following this step-by-step guide, you’ll be able to change your Subaru key fob battery with ease, ensuring that your keyless entry system continues to function smoothly. And remember, regular maintenance is key to prolonging the life of your key fob battery. So, take the time to read through this guide, and you’ll be well on your way to avoiding those pesky key fob issues!
Question & Answer Hub
What type of battery is used in my Subaru key fob?
The type of battery used in your Subaru key fob will depend on the specific model of your vehicle. Typically, it’s a CR2032 lithium battery, but it’s essential to check your owner’s manual or consult with a Subaru dealership for confirmation.
Can I replace the battery in my Subaru key fob myself?
Yes, replacing the battery in your Subaru key fob is a relatively simple process that you can accomplish yourself. However, if you’re not comfortable with DIY projects or if you’re unsure about your vehicle’s specific requirements, it’s always best to consult with a Subaru dealership or a professional mechanic.
How do I know when my Subaru key fob battery is running low?
The most common signs of a low battery in your Subaru key fob include a dead fob, erratic behavior, or difficulty unlocking your car. If you experience any of these symptoms, it’s likely time to replace the battery.
What’s the recommended frequency for replacing my Subaru key fob battery?
It’s recommended to replace the battery in your Subaru key fob every 2-3 years, depending on usage and environmental factors. However, if you experience issues with your key fob or notice a decrease in its functionality, it’s best to replace the battery as soon as possible.