Understanding the Red Light on Your Subaru Key Fob

Learn what the red light on your Subaru key fob means and how to easily replace its battery.

Published May 11, 2025

Overview

If you've noticed a red light on your Subaru key fob, you may be wondering what it means. This short video provides essential insights into the significance of that warning light and offers practical advice on how to address it. With vehicles becoming increasingly reliant on electronic systems, knowing how to interpret signals from your key fob can enhance your driving experience and ensure your vehicle remains accessible. Learning about the battery replacement process for your Subaru key fob can save you time and prevent inconvenience in the future.

Video transcript

A red light on your Subaru key fob usually indicates a low battery. It's a signal that it's time to replace the battery to ensure your key fob functions properly. Conveniently, most Subaru key fobs use a CR2032 battery, which is readily available at electronics or automotive stores. Changing the battery is straightforward: simply open the back of the key fob, replace the old battery with a new one, ensuring the positive side is facing up, and then reassemble the key fob.

Questions and answers

What does a red light on my Subaru key fob indicate?
A red light on your Subaru key fob usually indicates a low battery. It’s a signal that it's time to replace the battery for optimal functionality.
How do I change the battery in my Subaru key fob?
To change the battery in your Subaru key fob, open the back of the fob, replace the old battery with a new CR2032 battery, ensuring the positive side is facing up, and then reassemble the key fob.
What type of battery does a Subaru key fob use?
Most Subaru key fobs use a CR2032 battery, which can be found at electronics stores or automotive retailers.
Can I use any battery for my Subaru key fob?
It's recommended to use a CR2032 battery for your Subaru key fob to ensure compatibility and proper functionality.