The gentle click of your car key fob unlocking your Subaru is a familiar and reassuring sound. But what happens when that click turns into a frustrating silence? A dead car key battery can be a real inconvenience, leaving you stranded and scrambling for solutions. Luckily, changing a car key battery in a Subaru is a relatively straightforward process that you can often tackle yourself, saving you time and money. This comprehensive guide will walk you through the steps, providing you with the knowledge and confidence to replace your Subaru key battery like a pro.
Understanding Your Subaru Key Fob
Before diving into the replacement process, it’s essential to understand the components of your Subaru key fob. Most Subaru key fobs are equipped with a small, coin-shaped battery that powers the electronic circuitry. This battery typically lasts for several years, but eventually, it will need to be replaced. Knowing the type of battery your key fob uses is crucial for a successful replacement.
Identifying Your Battery Type
Subaru key fobs use a variety of battery types, so it’s important to identify the correct one for your vehicle. You can usually find this information in your owner’s manual or by looking for a small sticker on the back of the key fob. Common battery types include:
- CR2032
- CR2025
- CR1616
Once you’ve identified the battery type, you can purchase a replacement from an auto parts store or online retailer.
Tools You’ll Need
To change your Subaru key fob battery, you’ll need a few simple tools:
- A small flathead screwdriver or pry tool
- The correct replacement battery (refer to the previous section for identification)
- Optional: A small container for the old battery
Step-by-Step Guide to Replacing Your Subaru Key Fob Battery
Now that you have the necessary tools and knowledge, let’s get started on replacing your Subaru key fob battery. (See Also: Where Is Negative Terminal On Car Battery? – Quick Guide)
Step 1: Open the Key Fob
Locate the small seam or gap on the back of your key fob. This is usually hidden under a small rubber cover. Gently insert the tip of your flathead screwdriver or pry tool into the seam and carefully pry open the key fob. Be cautious not to apply excessive force, as you could damage the key fob.
Step 2: Remove the Old Battery
Once the key fob is open, you’ll see the battery compartment. The old battery is usually held in place by a small plastic tab or clip. Carefully remove the tab or clip and gently lift the old battery out of the compartment. Note the positive (+) and negative (-) terminals of the battery for proper orientation when installing the new one.
Step 3: Install the New Battery
Align the positive (+) and negative (-) terminals of the new battery with the corresponding terminals in the battery compartment. Gently press the new battery into place until it sits securely. Replace the plastic tab or clip that holds the battery in place.
Step 4: Close the Key Fob
Carefully align the two halves of the key fob and gently press them together until they snap into place. Make sure the rubber cover is securely in place.
Step 5: Test the Key Fob
To test the new battery, press the unlock and lock buttons on your key fob. If the buttons work and the lights on your key fob illuminate, you’ve successfully replaced the battery.
Important Safety Precautions
While replacing a car key fob battery is generally a straightforward task, it’s important to follow these safety precautions: (See Also: Who Has the Best Car Battery? Top Picks Revealed)
- Always disconnect the negative terminal of your car battery before working on any electrical components, including your key fob. This will prevent accidental shorts and electrical shocks.
- Handle batteries with care. Do not drop or puncture them, as this can release harmful chemicals. Dispose of old batteries properly according to local regulations.
- If you are uncomfortable performing this task yourself, consult a qualified mechanic or locksmith.
Recap: Changing Your Subaru Key Fob Battery
Changing your Subaru key fob battery is a relatively simple process that can save you time and money. By following these steps and taking the necessary safety precautions, you can easily replace the battery yourself. Remember to identify the correct battery type for your vehicle, gather the necessary tools, and carefully follow the instructions. If you encounter any difficulties or are unsure about any step, don’t hesitate to seek professional assistance.
Here are the key takeaways from this guide:
- Understanding your Subaru key fob and its battery type is crucial for a successful replacement.
- Gather the necessary tools, including a small flathead screwdriver, the correct replacement battery, and a container for the old battery.
- Carefully open the key fob, remove the old battery, install the new battery, and close the key fob.
- Always prioritize safety by disconnecting your car battery, handling batteries with care, and seeking professional help if needed.
FAQs
How often should I change my Subaru key fob battery?
The lifespan of a car key fob battery varies depending on usage and battery quality. Generally, you can expect a Subaru key fob battery to last for 2-5 years. However, it’s a good idea to check the battery periodically, especially if you notice any signs of weakness, such as a dim light or a reduced range for the key fob.
What happens if I leave my Subaru key fob battery dead for too long?
Leaving a Subaru key fob battery dead for an extended period can potentially damage the electronic circuitry within the key fob. It’s best to replace the battery as soon as you notice any signs of weakness to avoid potential damage.
Can I use any type of battery to replace my Subaru key fob battery?
No, it’s crucial to use the correct battery type for your Subaru key fob. Using an incorrect battery size or type can damage the key fob and may not function properly. Refer to your owner’s manual or the sticker on the back of the key fob to identify the correct battery type. (See Also: How to Charge a Car Battery from Another? Safe And Easy)
Can I program my Subaru key fob myself after replacing the battery?
Some Subaru models allow for key fob reprogramming using a specific procedure outlined in the owner’s manual. However, other models may require professional programming by a Subaru dealer or locksmith. Consult your owner’s manual or contact a Subaru service center to determine the specific reprogramming requirements for your vehicle.
What should I do if I lose my Subaru key fob?
If you lose your Subaru key fob, it’s essential to contact a Subaru dealer or locksmith as soon as possible. They can help you create a new key fob and program it to your vehicle. Keep in mind that replacing a lost key fob can be more expensive than simply replacing the battery.