When your Subaru key fob starts losing power, it’s time to change the battery. If you’ve ever wondered how to do it yourself, you’re in the right place! Replacing a key fob battery is a simple task that can save you time and money. Plus, you’ll feel super accomplished once you’ve done it! In this article, we’ll show you how to change the battery in your Subaru key fob with easy simple steps.
Understanding Your Subaru Key Fob: What You Need to Know
Before you start replacing the battery in your Subaru key fob, it’s important to understand how the key fob works and the type of battery it uses. The key fob is a small electronic device that allows you to lock and unlock your car, start the engine, and even open the trunk—all without needing to insert a physical key. Most Subaru key fobs use a small coin cell battery, specifically the CR2032 battery. This battery is widely available, so you won’t have trouble finding a replacement.
How Does a Key Fob Work?
A key fob works by sending a signal to your Subaru’s electronic system. When you press a button on the fob, it transmits a signal to the car’s receiver, which then performs the requested action. The battery inside the key fob powers this signal transmission. Over time, as the battery’s charge weakens, the signal becomes weaker, and the key fob may stop working properly. That’s when you’ll need to replace the battery.
Signs Your Key Fob Battery Needs to Be Replaced
There are a few signs that indicate your Subaru key fob’s battery is running low. If you notice any of the following, it’s probably time to change the battery:
- Weak signal: The key fob struggles to lock or unlock the doors.
- Unresponsive buttons: Some buttons on the key fob stop working.
- Battery warning light: A low battery indicator may appear on your car’s dashboard.
Now that you know how the key fob works and the signs to watch out for, let’s talk about the tools and materials you’ll need to change the battery.
Tools You’ll Need to Change the Battery in Your Subaru Key Fob
Changing the battery in your Subaru key fob doesn’t require fancy tools. In fact, you probably have everything you need at home already. Here’s a list of tools that will make the job easier:
1. A Small Flathead Screwdriver
You’ll need a small flathead screwdriver to open the key fob. This tool is perfect for prying apart the two halves of the fob without damaging it.
2. A New CR2032 Battery
Most Subaru key fobs use a CR2032 coin cell battery. Make sure to get the exact type recommended for your model. You can find this battery at most grocery stores, electronics shops, or online.
3. A Clean Cloth or Towel
It’s a good idea to lay down a clean cloth or towel to work on. This helps protect the key fob from getting scratched and also keeps small parts from rolling away.
4. A Small Pair of Tweezers (Optional)
While not absolutely necessary, tweezers can be helpful when removing the old battery or inserting the new one without touching the battery terminals.
Now that you have the tools, it’s time to get to work! Let’s walk through the step-by-step process of changing the battery in your Subaru key fob.
Step-by-Step Guide to Replacing the Battery in Your Subaru Key Fob
Changing the battery in your Subaru key fob is a straightforward process that only takes a few minutes. Just follow these easy steps, and you’ll have a fully functioning key fob in no time!
Step 1: Remove the Physical Key
The first thing you need to do is remove the physical key from the key fob. To do this, look for a small switch or button on the side of the fob. Press or slide the switch to release the metal key. Once the key is removed, set it aside for later.
Step 2: Open the Key Fob
Now, you’ll need to open the key fob to access the battery. To do this:
- Use your small flathead screwdriver to gently pry apart the two halves of the key fob.
- Start by inserting the screwdriver into the small seam around the edge of the fob.
- Gently twist the screwdriver to separate the halves. Be careful not to apply too much force, as this could crack the plastic.
Once the key fob is open, you’ll see the battery inside. It’s usually a small, round coin cell.
Step 3: Remove the Old Battery
The old battery will likely be held in place by a small metal clip or tab. Use your fingers or a small pair of tweezers to lift the battery out of the compartment.
- Be sure to remember how the battery is positioned before you remove it, as the new battery needs to go in the same way.
- If the old battery is stuck, gently use the screwdriver to loosen it, but be careful not to damage the internal components.
Step 4: Insert the New Battery
Now that the old battery is out, it’s time to put in the new one. Take your new CR2032 battery and insert it into the fob, ensuring the positive (+) side is facing up. Press the battery gently into place, making sure it fits snugly.
Step 5: Reassemble the Key Fob
Once the new battery is in, it’s time to reassemble the key fob. Line up the two halves of the fob and press them together until they snap back into place. Make sure the fob is securely closed, with no gaps.
Step 6: Test the Key Fob
To make sure everything is working, test the key fob. Press the buttons to lock and unlock your car, and check if the key fob’s signal is strong. If it works as expected, congratulations! You’ve successfully changed the battery in your Subaru key fob.
If the key fob still doesn’t work, double-check the battery installation and make sure the new battery is the correct type.
Troubleshooting Common Issues After Replacing the Battery
Sometimes, even after you’ve changed the battery, your key fob might not work as expected. Don’t worry! Here are some common issues and how to fix them:
1. The Key Fob Isn’t Responding
If the key fob isn’t responding at all, it could be because the battery wasn’t inserted correctly. Double-check that the battery is facing the right way and that it’s securely in place. If the problem persists, try replacing the battery with a new one, as it could be faulty.
2. The Buttons Don’t Work Properly
If the buttons on the key fob don’t work as expected, it could be because there’s dirt or debris inside the fob. Try cleaning the inside of the key fob with a dry cloth before reassembling it. Also, make sure the battery is fully seated and not loose.
3. The Key Fob Is Still Weak
If the signal from the key fob is still weak even after changing the battery, it may be a sign that the fob is damaged or that the replacement battery is low on power. Try a different battery to see if that helps. If the issue persists, it may be time to visit a professional.
Final Thoughts
Changing the battery in your Subaru key fob is a simple task that can save you time and money. By following the easy steps outlined in this guide, you can get your key fob working like new again. Happy driving!
Frequently Asked Questions
Is it hard to change the battery in a Subaru key fob?
No, changing the battery in a Subaru key fob is not hard at all. You just need a small flathead screwdriver, a new CR2032 battery, and a little patience. The process takes just a few minutes, and with the right tools, you can do it yourself without any trouble.
Can I change the battery in my Subaru key fob without going to the dealership?
Yes, you can easily change the battery in your Subaru key fob at home without needing to visit the dealership. The process is simple, and you only need a few basic tools, such as a small screwdriver and a new CR2032 battery. Changing the battery yourself will save you both time and money.
Do I need to reprogram my Subaru key fob after changing the battery?
In most cases, you do not need to reprogram your Subaru key fob after changing the battery. The key fob should automatically reconnect with your car once the new battery is installed. However, if your key fob stops working after the battery change, you may need to reprogram it. Consult your Subaru owner’s manual for reprogramming instructions.
Is it safe to use any battery for my Subaru key fob?
No, it’s important to use the correct type of battery for your Subaru key fob. Most Subaru key fobs use a CR2032 coin cell battery. Using the wrong type of battery may cause the key fob to malfunction or even damage it. Always check the manual or consult the manufacturer to ensure you’re using the right battery.
Can I use a rechargeable battery for my Subaru key fob?
It is not recommended to use a rechargeable battery in your Subaru key fob. Key fobs are designed to use standard coin cell batteries like the CR2032, which are non-rechargeable. Rechargeable batteries may not provide enough power for the fob, and they could cause it to malfunction.
Do I need special tools to open my Subaru key fob?
No, you don’t need any special tools to open your Subaru key fob. A small flathead screwdriver is all you need to pry apart the two halves of the fob. Just be gentle to avoid damaging the plastic casing. It’s a simple process that doesn’t require any expensive tools.
Is it possible to damage my Subaru key fob while replacing the battery?
While it’s unlikely, it is possible to damage your Subaru key fob if you’re not careful. To avoid damaging the fob, use a small flathead screwdriver to gently pry apart the casing. Be sure not to apply too much force. If you follow the instructions carefully, your key fob should be just fine.
Can I extend the life of my Subaru key fob battery?
To extend the life of your Subaru key fob battery, avoid excessive exposure to extreme temperatures or moisture. Also, try not to press the buttons on the fob unnecessarily. When not in use, keep the fob in a dry, cool place to ensure the battery lasts as long as possible.