How to Replace Battery in Subaru Legacy Key Fob

Experiencing a spotty connection with your Subaru Legacy’s key fob? Before you schedule a pricey trip to the dealership, there’s a good chance you can tackle the issue head-on with a simple battery swap. Just like your TV remote, your key fob relies on a tiny battery to send signals to your car. Over time, this battery can lose its charge, leading to a weak signal or even rendering your key fob completely useless.

Don’t get stranded! This guide provides a step-by-step walkthrough of how to replace the battery in your Subaru Legacy key fob, saving you time and money.

Understanding Your Subaru Legacy Key Fob

Subaru Legacy vehicles typically use two main types of key fobs:

Standard Key Fob: This type features a physical key blade that folds out and is used for traditional ignition.
Keyless Entry Remote: This sleek design often lacks a physical key and utilizes push-button start functionality.

While the appearance might differ slightly between models and years, the process of replacing the battery remains relatively similar.

What You’ll Need:

Before you begin, gather the following items:

A fresh CR2032 battery: This is the most common type of battery used in Subaru Legacy key fobs. You can easily find them online or at most grocery stores, drugstores, and auto parts stores.
A small flathead screwdriver: This will be used to pry open the key fob casing. You can also use a coin or a butter knife if you don’t have a flathead screwdriver handy.
Optional: A small container to keep track of the old battery and prevent losing any small parts.

Replacing the Subaru Legacy Key Fob Battery: A Step-by-Step Guide

Let’s get started! Follow these instructions carefully to replace the battery in your Subaru Legacy key fob:

Locate the Key Fob Release: Examine your key fob for a small button or switch. This is usually located on the back or side of the fob.
Release the Physical Key: Press the release button and gently pull out the physical key blade from the fob. This will expose a small slot or indentation.
Gently Pry Open the Casing: Insert the tip of your flathead screwdriver (or your chosen tool) into the slot and carefully apply gentle pressure to pry open the casing. Start at one edge and work your way around until the two halves separate.
- Important: Avoid using excessive force as this could damage the key fob casing or internal components.
Identify the Battery: Inside, you will see the CR2032 battery. Note its position and the orientation of the positive (+) and negative (-) sides.
Remove and Replace the Battery: Carefully remove the old battery, using your fingernail or the flathead screwdriver to gently lift it out. Avoid touching the battery terminals. Place the new CR2032 battery into the compartment, matching the same orientation as the old battery.
Reassemble the Key Fob: Align the two halves of the key fob casing and press them firmly together until you hear a click. Make sure the casing is securely closed.
Reinsert the Physical Key: Slide the physical key back into its slot on the key fob until it locks into place.
Test the Key Fob: Try locking and unlocking your car doors using the key fob buttons to ensure the new battery is working correctly.

[image-1|subaru-legacy-key-fob-battery-replacement|Subaru Legacy key fob battery replacement|A close-up image of a Subaru Legacy key fob with the battery compartment open, showing the old battery being removed and the new CR2032 battery ready to be inserted. The surrounding area is well-lit, with tools such as a small flathead screwdriver and the physical key blade neatly arranged beside the fob. ]

Troubleshooting Tips

If you’re still having trouble with your key fob after replacing the battery, consider these additional tips:

Check Battery Orientation: Double-check that you inserted the new battery with the positive (+) side facing up, as indicated in the battery compartment.
Clean the Battery Contacts: Over time, the battery contacts inside the key fob can accumulate dirt or corrosion, which can interfere with the connection. Use a cotton swab dipped in rubbing alcohol to gently clean the contacts.
Reprogram the Key Fob: In rare cases, you may need to reprogram your key fob to your Subaru Legacy after replacing the battery. Consult your vehicle’s owner’s manual for specific instructions on how to do this, as the process can vary depending on the model year.

[image-2|subaru-legacy-key-fob-programming|Subaru Legacy Key Fob Programming|A person is holding a Subaru Legacy key fob in one hand while referring to the car’s owner’s manual open on the driver’s seat. The manual is open to the section explaining the Key Fob Programming procedure. The image highlights the importance of consulting the owner’s manual for vehicle-specific instructions.]

When to Seek Professional Help

If you’ve tried the steps above and your Subaru Legacy key fob is still not functioning properly, it’s best to consult with a professional automotive locksmith or dealership. There might be an underlying issue with your key fob, such as:

Damaged Key Fob: Physical damage to the key fob, like a cracked casing or water damage, can impact its functionality.
Internal Component Failure: Components inside the key fob, such as the circuit board or buttons, can wear out or malfunction over time.
Programming Issues: More complex programming issues may require specialized equipment and expertise to diagnose and resolve.

Expert Insight: “Many people overlook the simple solution of replacing the key fob battery,” says Mike Thompson, an experienced automotive locksmith at Keyfobprog. “A quick battery swap often solves the issue, saving car owners a trip to the dealership.”

Keeping Your Subaru Legacy Key Fob in Top Condition

Here are some additional tips for maximizing the lifespan of your Subaru Legacy key fob and its battery:

Avoid Extreme Temperatures: Just like your car battery, your key fob battery can be affected by extreme heat or cold. Avoid leaving it in direct sunlight or extremely cold environments for prolonged periods.
Handle with Care: Dropping your key fob frequently can cause physical damage and potentially impact battery life.
Replace the Battery Regularly: Even with proper care, key fob batteries have a limited lifespan. It’s a good idea to replace the battery every 2-3 years as preventative maintenance or at the first sign of a weakening signal.

By following these proactive tips, you can enjoy uninterrupted use of your Subaru Legacy key fob for years to come.

Need Professional Key Fob Assistance? Contact Keyfobprog

Replacing the battery in your Subaru Legacy key fob is usually a straightforward task that you can tackle at home. However, if you’re unsure about any step or encounter any difficulties, don’t hesitate to reach out to the experts at Keyfobprog. Our team of skilled automotive locksmiths is equipped to handle all your key fob needs, from battery replacement to programming and repairs.

Contact Keyfobprog Today:

Phone: +1 (641) 206-8880
Office: 1326 N Houston St, Amarillo, TX 79107, USA

We’re here to help you get back on the road with confidence!