A Guide to Subaru Key Fob Battery Replacement

Your Subaru key fob is a vital companion, granting you access to your car with a simple press of a button. But just like any electronic device, the battery powering your fob can eventually die, leaving you scrambling for a solution. Fear not, fellow Subaru owner! This comprehensive guide will walk you through the process of replacing your key fob battery, ensuring a smooth and successful experience.

Understanding Your Subaru Key Fob

Subaru utilizes various key fob designs across their model range. Here's a breakdown of the two most common types:

Standard Remote Style: This classic design features buttons for locking, unlocking, and trunk release. It typically has a designated spot for the emergency metal key.
Flip-Out Style: This more modern design incorporates the buttons into a fob that flips out to reveal the emergency metal key.

Knowing your fob style is crucial for identifying the correct battery replacement procedure.

Identifying Your Battery Type

Most Subaru key fobs utilize a standard button cell battery, commonly referred to as a CR-series battery. The specific type can vary depending on your model and year. Here are some of the most common Subaru key fob battery types:

CR1620: This 3-volt battery is frequently used in older Subaru models with standard remote style fobs.
CR2032: This 3-volt battery is the most common type used in newer Subaru models, including both standard and flip-out style fobs.

Pro-Tip: Consult your Subaru owner's manual for the exact battery type your specific fob requires. You can also find this information by searching online using your model year and "key fob battery type."

Tools You'll Need

Replacing your Subaru key fob battery is a straightforward process that requires minimal tools:

Replacement Battery: Ensure you have the correct CR-series battery for your specific fob.
Small Flathead Screwdriver (Optional): This might be needed to pry open certain fob casings.

Safety Note: Avoid using sharp objects to pry open the fob casing, as this can damage delicate components.

Replacing Your Subaru Key Fob Battery (Standard Remote Style)

Locate the Emergency Key: Most standard remote style fobs have a designated spot for the emergency metal key. This key can often be used to unlock the car door if the fob battery is dead.
Press the Button: Look for a small silver button on the back of the fob. Pressing this button releases the emergency key.
Open the Fob Casing: Here's where the optional flathead screwdriver might come in handy. Some fob casings simply snap open, while others require a gentle prying motion along a seam using the screwdriver. Be cautious and avoid applying excessive force.
Locate the Battery: Once the casing is open, identify the old battery. It will typically be held in place by a small clip or compartment.
Remove the Old Battery: Carefully remove the old battery, making note of its positive (+) and negative (-) markings.
Insert the New Battery: Place the new battery into the compartment, ensuring the positive (+) side aligns with the positive marking on the fob.
Snap the Casing Shut: Carefully reassemble the fob casing, ensuring all components fit snugly back into place.
Test the Fob: Press the lock and unlock buttons on the fob to confirm functionality.

Replacing Your Subaru Key Fob Battery (Flip-Out Style)

Locate the Release Button: Most flip-out style fobs have a small button or switch on the side that releases the flip-out section containing the buttons.
Flip Out the Buttons: Press the release button and gently flip out the section with the lock and unlock buttons.
Open the Fob Casing: Similar to the standard remote style, the fob casing might snap open or require careful prying with a flathead screwdriver.
Locate and Replace Battery: Follow steps 5-8 from the standard remote style instructions to remove the old battery, insert the new one, and reassemble the fob casing.

Additional Tips and Considerations

Double-Check Battery Type: Ensure you're using the exact CR-series battery recommended for your specific fob model. An incorrect battery size or type might not fit properly or function correctly.
Dispose of Old Battery Responsibly: Don't throw away old button cell batteries in regular trash. Look for designated battery recycling bins at electronics stores or other collection points.
Bonus Section: Troubleshooting Common Subaru Key Fob Issues
Even after replacing the battery, you might encounter some issues with your Subaru key fob. Here's a quick guide to troubleshooting common problems:
Fob Not Detected:
- Check Distance: Ensure you're within close proximity to the car when trying to lock or unlock it with the fob.
- Metal Interference: Large metal objects like keychains or bags near the fob can sometimes interfere with the signal. Try holding the fob by itself when pressing the buttons.
- Dirty Buttons: Sticky or dirty fob buttons might not register presses effectively. Clean the buttons with a soft, dry cloth.
Fob Range Decreased: A weak battery can sometimes cause a decrease in the fob's operating range. Even with a new battery, the fob might have reached the end of its lifespan and require replacement.
Buttons Not Responsive: This could indicate a malfunction within the fob electronics. If cleaning the buttons doesn't resolve the issue, consult your Subaru dealership for diagnosis and repair.

Remember: If you're unsure about any aspect of the fob battery replacement process or encounter persistent issues, don't hesitate to consult your Subaru dealership or a qualified mechanic for assistance. They can provide expert guidance and ensure your key fob functions optimally, keeping your Subaru accessible and secure.

A Guide to Subaru Key Fob Battery Replacement