Your Subaru key fob is a small but mighty piece of technology that provides daily convenience. When it stops working, often due to a dead battery, it can disrupt your entire routine. The thought of a trip to the dealership for something so small can be frustrating, especially when you consider the potential cost and time involved.
The great news is that changing the battery is a simple task you can easily do yourself in just a few minutes. The only tricky part is knowing the right way to get it open without causing damage. This guide will provide clear, easy-to-follow instructions on how to open a subaru key fob, empowering you to handle this basic maintenance with confidence.
A depleted key fob battery can be an inconvenience, but replacing it doesn’t have to be a hassle. With just a few basic tools and a little patience, you can open your Subaru key fob and get it back in working order in no time. This guide is here to walk you through the steps, ensuring you avoid frustration and keep your key fob functioning smoothly.
Step-by-Step Guide on How to Open Subaru Key Fob
Step 1: Check for a Visible Screw
The first step in opening your Subaru key fob is to check for a visible screw. Some models may have a tiny screw holding the two halves of the key fob together, while others may not have any screws at all. If you do find a screw, use a small Phillips head screwdriver to remove it.
Step 2: Use a Flathead Screwdriver
If your Subaru key fob does not have a visible screw, you will need to use a flathead screwdriver to carefully open it. Insert the tip of the screwdriver into the small seam or groove along the edge of the fob. Gently twist or pry the screwdriver to separate the two halves of the casing.
Be cautious not to apply too much force, as this could damage the plastic housing or internal components. Take your time as you work around the seams, slowly loosening the halves until they come apart. Always handle the screwdriver with care to avoid injury or scratches.
Step 3: Locate the Pry Slot
With the valet key removed, you will now have access to the internal seam of the key fob case. Look inside the space where the key used to be. You should see a small, designated indentation or slot. This is the pry point specifically designed by Subaru to help you open the case without damaging the plastic clips that hold it together. Using any other point along the seam can cause the plastic to crack or break, so it is very important to use this specific slot for leverage. It’s a small detail that makes a big difference.
Step 4: Pry with a Plastic Tool
Once you have located the pry point, it’s time to use a plastic tool to carefully open the case. This can be any small, flat and sturdy object such as a credit card, guitar pick, or even a plastic spudger made specifically for opening electronic devices.
Insert the plastic tool into the designated indentation and gently pry open the case. As you do this, make sure to apply pressure towards the center of the key fob rather than pulling away from it. This will prevent any unnecessary damage to the case or internal components.
You may need to move along the seam and repeat this process in different areas until all clips have been released.
Step 5: Separate the Two Halves and Identify the Battery
Once the clips are disengaged, the two halves of the key fob should separate easily. Place them on your soft cloth with the internal components facing up. In one half, you will see the green circuit board with its delicate electronics. In the other half, you will see the round, silver coin cell battery. Take a moment to note the orientation of the battery—specifically, which side is facing up (usually the positive “+” side with the markings). This is crucial for installing the new battery correctly. Some models may have a small cover over the battery that needs to be removed.
Step 6: Use a Coin Cell Battery Tester
If you are unsure whether or not your device’s battery needs to be replaced, you can use a coin cell battery tester. This small and inexpensive tool measures the voltage of the battery and indicates if it is still functioning properly.
To use a coin cell battery tester, simply place the negative (-) end of the battery against the corresponding metal contact on the tester and then touch the positive (+) end to its respective contact. The tester will display the current voltage level of the battery, typically shown in volts (V).
Step 7: Insert the New Battery and Reassemble the Fob
Take your new battery and insert it into the holder, making sure the positive “+” side is facing the same direction as the old battery you just removed. Press it down gently until it clicks into place. Now, align the two halves of the key fob case and press them firmly together. You should hear a series of clicks as the internal clips re-engage and lock into place. Squeeze along the entire seam to ensure it is fully sealed. Finally, slide the metal valet key back into its slot until it clicks, and you’re done.
Safety Tips for Handling
When handling small devices like key fobs or replacing their batteries, it’s important to follow these safety tips to ensure both personal safety and the functionality of the device:
- Work in a Clean, Dry Environment – Moisture or dirt can damage electronic components. Make sure your workspace is dry and free of debris.
- Avoid Excessive Force – Use gentle pressure when opening the key fob or inserting the battery. Forcing parts could lead to breakage or damage.
- Keep Batteries Away From Children and Pets – Small batteries, such as button cells, can be a choking hazard or cause serious harm if ingested.
- Wear Gloves if Necessary – Oils from your fingers can affect the battery’s performance. Consider wearing gloves or handling the battery with clean hands.
- Dispose of Old Batteries Properly – Dead batteries are hazardous to the environment. Recycle them at designated battery disposal sites or local electronic stores.
- Check for Compatibility – Always ensure the replacement battery matches the requirements specified by the device manufacturer to avoid malfunctions.
By adhering to these guidelines, you can safely handle your device and maintain its functionality for the long term.
Frequently Asked Questions (FAQ)
What Kind of Battery Does My Subaru Key Fob Take?
Most modern Subaru key fobs, especially for models from the last decade (like the Outback, Forester, Crosstrek, and Ascent), use a CR2032 3-volt lithium coin cell battery. Some older or different style fobs might use a CR2025 or CR1620. The best way to be certain is to open your fob first and read the number printed on the old battery before you buy a new one.
Will I Need to Reprogram My Key Fob After Changing the Battery?
No, in almost all cases you will not need to reprogram your Subaru key fob after a battery change. The fob’s unique code is stored in a non-volatile memory, meaning it is not erased when the power is lost. As long as you complete the battery change in a timely manner (within a few minutes), all your settings should be retained, and it should work immediately.
How Do I Know if My Key Fob Battery Is Dying?
The most common sign is a significantly reduced range. You may find you have to get closer and closer to your car for the lock and unlock buttons to work. Another clear indicator is a “Key Fob Battery Low” warning message that may appear on your vehicle’s multi-information display. If you have to press a button multiple times for it to register, the battery is likely on its way out.
What if My Key Fob Still Doesn’t Work After Changing the Battery?
If a new battery doesn’t solve the problem, first double-check that you installed it correctly with the positive side facing the right way. If it’s still not working, there could be an issue with the contacts inside the fob or a problem with the fob’s internal electronics. At that point, it may be necessary to have it inspected by a Subaru dealership or a professional automotive locksmith.
Can I Damage My Key Fob by Opening It?
Yes, it is possible to cause cosmetic or functional damage if you are not careful. The most common mistake is using too much force or prying along the wrong part of the seam, which can break the plastic housing or the internal clips. Always use the designated pry slot and be gentle. By following the steps outlined in this guide, you can significantly minimize the risk of damage.
Conclusion
A non-responsive key fob is an annoyance, but it doesn’t have to be a major expense or a trip to the dealership. By learning how to access and replace the battery, you take control of a simple piece of vehicle maintenance and save yourself time and money. The key is to work carefully, use the designated pry points, and ensure the new battery is installed correctly. Now that you have a clear, step-by-step guide on how to open subaru key fob, you can confidently tackle this task and get your remote working like new in just a few minutes.