Subaru Key Fob Battery Replacement: A Comprehensive Guide

Subaru key fob battery replacement is a crucial aspect of maintaining your vehicle’s functionality. When your key fob battery dies, it can lead to a range of issues, from intermittent functionality to complete failure. This comprehensive guide will provide you with everything you need to know about Subaru key fob battery replacement, from identifying a dead battery to replacing it yourself or seeking professional assistance.

Subaru Key Fob Battery Replacement Basics

Key fob batteries are crucial for the proper functioning of Subaru vehicles. They provide the power necessary to operate various features such as door locking and unlocking, trunk release, and remote start. A dead key fob battery can lead to inconvenience and frustration, especially when you need to access your vehicle quickly.

Identifying a Dead Key Fob Battery, Subaru key fob battery replacement

There are several signs that may indicate a dead key fob battery:

Dim or intermittent LED lights:The key fob’s LED lights may become dim or stop working altogether when the battery is low.
Reduced range:The key fob may have a shorter range when the battery is weak, making it difficult to lock or unlock the vehicle from a distance.
Intermittent or no response:The key fob may not respond to button presses consistently or at all if the battery is completely dead.

Extending Key Fob Battery Life

To extend the lifespan of Subaru key fob batteries, follow these tips:

Avoid extreme temperatures:Extreme heat or cold can shorten battery life. Keep the key fob in a cool, dry place.
Use the key manually:Inserting the key into the ignition and manually locking and unlocking the doors can help preserve battery life.
Remove the battery when not in use:If you won’t be using the vehicle for an extended period, remove the key fob battery to prevent unnecessary battery drain.

DIY Subaru Key Fob Battery Replacement

Replacing the battery in your Subaru key fob is a simple and inexpensive task that you can do yourself in just a few minutes. Here’s a step-by-step guide to help you through the process:

Tools and Materials

New CR2025 battery
Small flathead screwdriver or plastic pry tool

Professional Subaru Key Fob Battery Replacement

When replacing the battery in your Subaru key fob, it’s generally recommended to seek professional assistance if you’re not comfortable performing the task yourself. This ensures the battery is replaced correctly and your key fob continues to function properly.

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Authorized Subaru Dealerships

Authorized Subaru dealerships are equipped with the necessary tools and expertise to replace key fob batteries efficiently. They can also diagnose any underlying issues that may be affecting your key fob’s performance.

Automotive Service Centers

Certain automotive service centers also offer key fob battery replacement services. These centers typically have experienced technicians who can handle the task quickly and reliably.

Potential Costs

The cost of professional Subaru key fob battery replacement can vary depending on the dealership or service center. However, it’s generally within the range of $50 to $100, including labor and parts.

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Troubleshooting Subaru Key Fob Battery Issues

Subaru key fob batteries, like any other electronic device, can encounter problems that affect their functionality. These issues can range from intermittent operation to complete failure. Identifying the root cause of the problem and implementing appropriate troubleshooting steps can restore the key fob’s functionality and ensure seamless vehicle access.

Identifying Common Problems

Intermittent Functionality:The key fob may work sporadically or only at close range, indicating a weak battery or loose connections.
Complete Failure:The key fob may not respond at all, suggesting a dead battery or a more severe electrical issue.
Dim or Flickering LED Indicator:A weak battery may cause the LED indicator on the key fob to dim or flicker when buttons are pressed.
Corrosion or Damage:Physical damage to the key fob, such as cracks or water exposure, can affect battery performance.

Troubleshooting Steps

Replace the Battery:Replacing the battery is the most common solution for intermittent functionality or complete failure. Use the correct battery type specified in the owner’s manual.
Check Connections:Ensure the battery is properly seated in the battery compartment and that there are no loose wires or terminals.
Clean Contacts:Corrosion or dirt on the battery contacts can prevent proper electrical connection. Use a cotton swab dipped in rubbing alcohol to clean the contacts.
Inspect for Damage:Examine the key fob for any visible damage, such as cracks or water exposure. If damage is present, professional repair may be necessary.
Reset the Key Fob:Some Subaru key fobs have a reset button. Pressing and holding this button for a few seconds can restore functionality.

Tips for Maintenance and Diagnosis

Regular maintenance and proper handling can extend the lifespan of Subaru key fob batteries and prevent common problems. Here are some tips:

Replace the battery every 1-2 years, or as recommended in the owner’s manual.
Avoid exposing the key fob to extreme temperatures or moisture.
Keep the key fob clean and free of debris.
If you suspect a battery issue, try a new battery before seeking professional assistance.
Consult the owner’s manual or a qualified technician for specific troubleshooting and repair instructions.

Safety Precautions for Subaru Key Fob Battery Replacement

Replacing Subaru key fob batteries requires attention to safety guidelines to prevent potential hazards and ensure proper handling of used batteries.

Follow these precautions to ensure a safe and responsible battery replacement process:

Potential Hazards

Electrical shock: Batteries contain electrical current, which can cause injury if not handled correctly.
Chemical burns: Batteries contain corrosive chemicals that can cause burns or irritation if they come into contact with skin or eyes.
Fire: Batteries can overheat or explode if they are mishandled or improperly disposed of.

Best Practices

Always refer to the Subaru owner’s manual for specific instructions and safety guidelines.
Use the correct battery type and size specified for your Subaru key fob.
Handle batteries with care, avoiding contact with skin and eyes.
Wear gloves when replacing batteries to minimize the risk of chemical exposure.
Dispose of used batteries properly at designated recycling centers or battery disposal locations.

Subaru Key Fob Battery Compatibility

Subaru key fobs typically use coin-type batteries, which are small, round batteries designed to fit into the key fob’s battery compartment. The most common types of batteries used in Subaru key fobs are CR2025, CR2032, and CR1632. These batteries all have a voltage of 3 volts, but they differ in size and capacity.

CR2025: 20mm diameter, 2.5mm thick, 160mAh capacity
CR2032: 20mm diameter, 3.2mm thick, 220mAh capacity
CR1632: 16mm diameter, 3.2mm thick, 135mAh capacity

Using incompatible batteries can lead to problems with the key fob’s operation. For example, using a battery with too low a voltage may not provide enough power to operate the key fob, while using a battery with too high a voltage may damage the key fob’s circuitry.

It is important to use the correct type of battery for your Subaru key fob.

Last Recap

By following the steps Artikeld in this guide, you can ensure that your Subaru key fob battery is always in good working order. Remember to prioritize safety when handling batteries and seek professional assistance if necessary. With proper care and maintenance, your Subaru key fob will continue to provide reliable access to your vehicle for years to come.

Query Resolution: Subaru Key Fob Battery Replacement

How can I tell if my Subaru key fob battery is dead?

Common signs of a dead Subaru key fob battery include intermittent functionality, reduced range, or complete failure to respond.

Can I replace the battery in my Subaru key fob myself?

Yes, replacing the battery in a Subaru key fob is a relatively simple process that can be done at home with basic tools.

When should I seek professional assistance for Subaru key fob battery replacement?

If you are uncomfortable replacing the battery yourself or encounter any issues during the process, it is advisable to seek professional assistance from an authorized Subaru dealership or automotive service center.