Subaru Keyless Key Fob Battery Replacement: A Comprehensive Guide

Replacing the battery in your Subaru keyless key fob is a simple task that can save you time and money. This guide will walk you through the process step-by-step, covering various Subaru models and addressing common issues.

Understanding Your Subaru Keyless Entry System

Subaru keyless entry systems provide convenient access to your vehicle without using a traditional key. These systems rely on a key fob that transmits a radio signal to your car’s receiver. Over time, the key fob battery weakens, eventually leading to reduced range or complete failure. Knowing how to replace the battery is crucial to avoid being locked out.

Why Does My Subaru Key Fob Battery Drain?

Key fob batteries typically last between 2 and 5 years depending on usage and environmental factors. Frequent use, extreme temperatures, and even physical damage can contribute to faster battery drain.

Identifying the Correct Battery for Your Subaru Key Fob

Most Subaru key fobs use a CR2025 or CR2032 3V lithium battery. Consult your owner’s manual or look for markings inside the key fob to confirm the correct battery type. Using the wrong battery can damage your key fob.

Where Can I Buy a Replacement Battery?

Replacement batteries are readily available at most electronics stores, auto parts stores, and online retailers. Ensure you purchase a high-quality battery from a reputable source to ensure longevity.

Step-by-Step Guide to Subaru Keyless Key Fob Battery Replacement

The process for replacing the battery is generally similar across various Subaru models, but there might be slight variations.

Locate the Key Fob Release: Most Subaru key fobs have a small release button or slot. Press this button or insert a small flathead screwdriver to separate the key fob halves.
Identify the Battery: Once open, locate the circular, flat battery.
Remove the Old Battery: Carefully pry the old battery out using a small flathead screwdriver or your fingernail. Avoid excessive force to prevent damage.
Install the New Battery: Insert the new battery, ensuring the positive (+) side faces up, as indicated in the key fob compartment.
Reassemble the Key Fob: Align the two halves of the key fob and press them together until they snap securely shut.

Troubleshooting Subaru Keyless Entry Issues

Sometimes, even after replacing the battery, you might experience issues with your keyless entry system.

My Key Fob Still Isn’t Working. What Now?

Check the Battery Orientation: Ensure the new battery is installed correctly with the positive (+) side facing up.
Try Reprogramming the Key Fob: Some Subaru models require reprogramming the key fob after a battery replacement. Refer to your owner’s manual for specific instructions.
Check for Key Fob Damage: Physical damage to the key fob can also cause malfunctions. Inspect the key fob for cracks or broken buttons.

Expert Insights on Subaru Key Fob Battery Replacement

“Regularly replacing your Subaru key fob battery can prevent unexpected lockouts and ensure the smooth operation of your keyless entry system,” says John Davis, Senior Automotive Technician at AutoExperts Inc.

“Using the correct battery type is essential for preventing damage to your key fob,” adds Sarah Miller, Electrical Systems Specialist at CarTech Solutions.

Conclusion

Replacing the subaru keyless key fob battery is a straightforward process that every Subaru owner should know. By following the steps outlined in this guide and troubleshooting any potential issues, you can maintain the convenience and reliability of your keyless entry system.

FAQ

How often should I replace my Subaru key fob battery? Every 2-5 years, depending on usage.
What type of battery does my Subaru key fob use? Typically a CR2025 or CR2032.
Where can I buy a replacement battery? Electronics stores, auto parts stores, and online retailers.
Do I need to reprogram my key fob after replacing the battery? Refer to your owner’s manual.
What should I do if my key fob still isn’t working after replacing the battery? Check battery orientation, try reprogramming, or inspect for damage.
Can I replace the battery myself? Yes, it’s a simple DIY task.
What can cause my key fob battery to drain quickly? Frequent use, extreme temperatures, and physical damage.

Common Scenarios:

Key fob works intermittently: This often indicates a low battery.
Key fob doesn’t work at all: Try replacing the battery or check for damage.
Key fob has reduced range: A weak battery is the likely culprit.

Subaru Key Fob Programming Guide
Understanding Your Subaru’s Keyless Entry System
Troubleshooting Common Subaru Key Fob Issues

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