Your Subaru key fob is an essential tool that makes your life easier by allowing you to lock, unlock, and start your car without the hassle of traditional keys. However, when the battery in your key fob starts to die, it can cause some frustration. Fortunately, replacing the battery is a simple task that you can easily do yourself, saving both time and money.
In this article, we’ll provide you with a step-by-step guide on how to replace the battery in your Subaru key fob, along with helpful tips to ensure everything works perfectly.
Why Does Your Subaru Key Fob Battery Need Replacing?
Over time, the battery in your key fob will lose its charge. This is a normal occurrence, as the battery naturally wears out with use. Most key fob batteries last between 2 to 4 years, depending on the frequency of use and environmental factors like temperature. When your key fob starts to show signs of a dying battery, you may experience:
- Reduced range: You may have to stand closer to your vehicle for the fob to work.
- Inconsistent performance: The fob may require multiple presses to unlock or lock the car.
- No response: The fob may fail to unlock the car at all, even after repeated button presses.
Recognizing these signs early can help you replace the battery before it dies completely, preventing the inconvenience of being locked out of your car.
How to Know When It’s Time to Replace the Battery in Your Subaru Key Fob
Here are some common signs that indicate your Subaru key fob battery may need to be replaced:
- Reduced Range: You need to stand closer to your car for the fob to work. If you used to be able to unlock the car from a distance but now need to be right next to it, it’s time for a replacement.
- Inconsistent Operation: Sometimes the key fob unlocks the car on the first press, but other times it takes several attempts to get it to work.
- Battery Warning Light: Some newer Subaru models display a warning light on the dashboard when the key fob battery is low. If you see this, replace the battery as soon as possible to avoid getting locked out of your vehicle.
- Cold Weather Issues: You may also notice that your key fob works better in warmer temperatures and struggles in cold weather. Cold temperatures can worsen the performance of a weak battery.
Identifying Your Subaru Key Fob and Battery Type
Subaru has used several key fob designs over the years, and each design uses a different type of battery. It’s important to identify which type of fob you have before purchasing a replacement battery. Here are the three main types of Subaru key fobs and their corresponding batteries:
- Newer Models (Rectangular Fobs): Most Subaru vehicles built in the last few years use a rectangular-shaped key fob. These models typically require a CR2032 lithium battery. The fob also includes a hidden emergency key that can be accessed by pressing a small release button on the back.
- Older Models (Teardrop or Oval Fobs): Older Subaru models, such as the Subaru Forester, often have a teardrop or oval-shaped fob. These fobs typically require a CR2025 battery.
- Traditional Key Fobs (With Exposed Metal Key): Very old Subaru models have traditional key fobs with an exposed metal key blade. These fobs use a smaller CR1620 battery.
You can identify which battery your fob requires by examining its shape. If your key fob is rectangular, it likely takes a CR2032; if it’s teardrop-shaped, it likely takes a CR2025; and if it has a visible metal key, it probably uses a CR1620.
Step-by-Step Guide to Replacing the Battery in Your Subaru Key Fob
Step 1: Gather the Necessary Tools
To replace the battery in your Subaru key fob, you’ll need a few simple tools:
- A small flathead screwdriver or a plastic pry tool.
- A replacement battery (CR2032, CR2025, or CR1620, depending on your key fob model).
Step 2: Open the Key Fob
Locate the seam along the edge of your key fob. If your fob has a metal key, start by removing it. This can usually be done by pressing a small silver button or tab near the top of the fob. Once the emergency key is removed, you’ll see a small gap where the key was stored. Use this gap to insert your flathead screwdriver or pry tool.
Carefully twist the tool to separate the two halves of the fob. Be gentle to avoid breaking the clips or damaging the plastic. The fob should come apart easily.
Step 3: Remove the Old Battery
Once the fob is open, you’ll see the battery inside. Take note of the battery’s orientation before removing it. Use your fingers or the small screwdriver to lift the old battery out of the compartment. Most key fobs have tabs or clips holding the battery in place.
Step 4: Insert the New Battery
Take your new CR2032, CR2025, or CR1620 battery (depending on your key fob model) and place it into the battery compartment. Make sure the battery is oriented the same way as the old one. Typically, the positive side of the battery should face up, but double-check if you’re unsure.
Press the new battery into place until it is snug and secure.
Step 5: Reassemble the Key Fob
After inserting the new battery, snap the two halves of the fob back together. Make sure the pieces align properly, and press until you hear them click into place. If your fob has an emergency key, slide it back into its designated slot.
Step 6: Test the Key Fob
Once the fob is reassembled, test it by pressing the buttons to ensure everything works. Try locking and unlocking the car from a distance. If the fob responds properly, the battery replacement is complete!
Where to Buy Replacement Batteries in New Jersey
Finding replacement batteries for your Subaru key fob is easy in New Jersey. Most pharmacies, such as CVS, Walgreens, and Rite Aid, carry CR2032, CR2025, and CR1620 batteries. You can also find these batteries at auto parts stores like AutoZone, Pep Boys, and Advance Auto Parts.
Convenience stores and gas stations may stock the most popular CR2032 battery, and big box retailers like Walmart and Target also offer these batteries. For online shopping, Amazon is a great option, especially if you need to buy in bulk or prefer home delivery.
Common Mistakes to Avoid During Battery Replacement
While replacing your Subaru key fob battery is a simple process, there are a few common mistakes to avoid:
- Forcing the Case Open: Every key fob design has a designated spot for opening. Forcing the fob open in the wrong place can break plastic clips and damage the casing. Always look for the correct seam before applying force.
- Installing the Battery Upside Down: If you install the battery upside down, the fob will not work. Always double-check the orientation before closing the case.
- Not Testing the Fob: After reassembling the key fob, always test it to ensure the new battery is working. If the buttons don’t respond, the battery might not be seated properly or could be installed incorrectly.
Troubleshooting After Battery Replacement
If your key fob still doesn’t work after replacing the battery, try these troubleshooting tips:
- Check the Battery: Make sure the battery is properly seated and that the correct side is facing up.
- Clean the Contacts: Sometimes, dirt or corrosion can build up on the battery contacts. Use a cotton swab and rubbing alcohol to clean them gently.
- Check for Physical Damage: If your fob was dropped or exposed to moisture, the internal components may be damaged, requiring professional repair.
Professional Help in New Jersey
If you don’t feel comfortable replacing the battery yourself, or if the fob still doesn’t work after replacing the battery, many Subaru dealerships in New Jersey offer key fob battery replacement services. You can also visit independent automotive locksmiths or battery specialty stores like Batteries Plus, which provide this service at affordable prices.
Conclusion: Keep Your Key Fob in Top Condition
Replacing the battery in your Subaru key fob is an easy and cost-effective way to ensure that your key fob works smoothly when you need it. By following this step-by-step guide, you can replace the battery yourself and avoid unnecessary trips to the dealership.
Keeping your Subaru key fob in good condition will help you avoid issues like being locked out of your car or dealing with malfunctioning features. Regularly replacing the battery is a simple task that can save you time, money, and frustration in the future.
