Ever wondered why your Subaru key fob battery seems to drain faster than expected? It’s a common concern for many Subaru owners. Several factors can influence the lifespan of your key fob battery, and understanding these can help you optimize its performance and avoid unexpected surprises.
One significant factor is the quality control of the CR2032 coin battery itself. Not all batteries are created equal, and even within reputable brands, occasional faulty batteries can slip through. If you own a battery tester, it’s a worthwhile step to check the battery’s charge before installing it in your fob. This simple check can potentially save you from future headaches. It’s also crucial to regularly verify that your mechanical emergency key works seamlessly with your Subaru. This ensures you can still access your vehicle should you encounter a dead fob battery in an inconvenient situation.
Another aspect affecting battery life is usage habits. Do you find yourself repeatedly pressing the lock/unlock buttons as you approach or leave your Subaru? This habit, common among many, can accelerate battery discharge. A smart solution offered in many Subaru models is to utilize the touch-sensitive door handle locking and proximity unlocking features. These features reduce the need for excessive button pressing, potentially extending your battery life. For those moments of uncertainty after walking away from your car, instead of pressing buttons repeatedly, consider using the MySubaru/Starlink app to confirm your vehicle’s lock status.
Furthermore, anecdotal evidence suggests that keeping your smart fob too close to your Subaru when at home can also contribute to battery drain, and conversely, may also drain the car’s battery. To mitigate this, it’s advisable to store your key fob further away from your vehicle when you are at home, allowing the car to fully enter its “sleep” mode. Alternatively, investing in a Faraday cage or valet box to store your fob at home can effectively block signals and prevent unnecessary battery drain in both the fob and the vehicle.
By understanding these factors and adopting some simple preventative measures, you can significantly improve the longevity of your Subaru key fob battery and ensure reliable access to your vehicle.
