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How to Replace Subaru Key Fob Battery

A dead key fob battery can be a real pain, leaving you stranded and frustrated. Fortunately, replacing the battery in your Subaru key fob is a quick and easy process you can do yourself, saving you a trip to the dealership. This guide will walk you through each step, ensuring you’re back to controlling your Subaru with ease.

What You’ll Need to Replace Your Subaru Key Fob Battery

Before you begin, gather these few simple tools:

  • A small flathead screwdriver
  • A new CR2032 battery (often used in watches and other small electronics)

How to Change the Battery in Your Subaru Key Fob: A Step-by-Step Guide

Here’s a step-by-step guide on how to replace the battery in your Subaru key fob:

  1. Locate the key slot: On the back of your Subaru key fob, you’ll find a small key slot.

  2. Open the key fob: Insert the tip of your flathead screwdriver into the key slot and gently pry open the key fob casing. You should hear a slight click when it’s disengaged.

  3. Identify and remove the old battery: Inside the key fob, you’ll see the battery. Carefully remove the old CR2032 battery. Note which side is facing up, as you’ll need to insert the new battery the same way.

  4. Install the new battery: Insert the new CR2032 battery into the compartment, ensuring it’s facing the same direction as the old battery.

  5. Reassemble the key fob: Align the two halves of the key fob casing and press them together until you hear a click, indicating it’s securely closed.

  6. Test the key fob: Ensure your Subaru key fob is functioning correctly by locking and unlocking your car and testing the other buttons.

Understanding Your Subaru Key Fob Battery Life

Subaru key fob batteries typically last between 3-5 years, but this can vary depending on usage and environmental factors.

Expert Insight:
“Many people don’t realize extreme temperatures can impact their key fob battery life,” says automotive electronics specialist, John Miller. “If you live in a very hot or cold climate, you might find your battery needs replacing sooner.”

Signs Your Subaru Key Fob Battery Needs Replacing

Here are a few signs to watch out for that indicate your Subaru key fob battery may be dying:

  • Decreased range: You need to be closer to your car for the key fob to work.
  • Intermittent functionality: The key fob works sometimes but not others.
  • Dim or no response: The indicator light on the key fob is dim or doesn’t flash when you press a button.

Don’t ignore these warning signs. Replacing your Subaru key fob battery as soon as you notice an issue can save you the hassle of dealing with a dead key fob at the most inconvenient time.

Programming Your Subaru Key Fob: When You Need to Do It

In most cases, replacing your Subaru key fob battery doesn’t require reprogramming. The key fob should automatically sync with your car once the new battery is installed.

Expert Insight:
“However, if you’ve replaced the key fob battery and are still experiencing issues,” explains Miller, “it’s possible the key fob needs to be resynced with your Subaru. Check your owner’s manual for specific instructions, as the process can vary slightly depending on your Subaru model and year.”

You may find instructions on how to replace battery in subaru key fob helpful. Some models, like the 2021 Subaru Forester key fob battery have specific procedures.

Replacing Your Entire Subaru Key Fob: Options and Considerations

If you need to replace the entire Subaru key fob, you have a few options:

  • Subaru Dealership: Dealerships can provide you with a new key fob that’s programmed to your specific vehicle. This is generally the most expensive option but guarantees compatibility.
  • Automotive Locksmith: Many automotive locksmiths can cut and program new Subaru key fobs, offering a potentially more affordable alternative to dealerships.
  • Online Retailers: You can often find replacement Subaru key fobs online. However, ensure the key fob is compatible with your Subaru model and year before purchasing. You’ll likely need to visit an automotive locksmith or dealership for programming.

You can find out more about Subaru key fob replacement options on our website.

Subaru Key Fob FAQs

Here are some frequently asked questions about Subaru key fobs:

Q: Can I drive my Subaru with a dead key fob battery?

A: Yes, you can still start your Subaru with a dead key fob battery. Use the physical key blade to unlock the driver’s side door and start the engine as usual. However, keep in mind that your keyless entry and push-button start features won’t work until you replace the battery.

Q: How do I turn off the anti-theft system with a dead key fob?

A: If your Subaru’s anti-theft system is activated due to a dead key fob battery, you’ll need to disarm it manually. This usually involves inserting your physical key into the ignition and turning it to the “ON” position for a few seconds. Refer to your Subaru owner’s manual for specific instructions on how to turn off anti-theft Subaru.

Q: My Subaru Forester is a 2014 model. Does it have an anti-theft device?

A: Yes, most 2014 Subaru Foresters are equipped with an immobilizer system, which is a type of anti-theft device. This system prevents the engine from starting without the presence of a valid key fob. If you’re interested in learning more about your specific model year, you can check out our article on whether 2014 Subaru Foresters have anti theft device.

Q: Why is my new Subaru key fob battery draining so quickly?

A: If your new key fob battery is draining quickly, there may be an underlying issue, such as a faulty key fob or a problem with your car’s electrical system.

Conclusion

Knowing how to replace a Subaru key fob battery is a valuable skill for any Subaru owner. By following these simple steps, you can save time and money by taking care of this easy maintenance task yourself.