It’s a familiar frustration for Subaru owners: discovering your key fob battery is dead. While inconvenient, understanding why this happens and how to address it can save you from future headaches. Let’s explore the common factors affecting your Subaru key fob battery life and guide you through effective solutions.
Several elements contribute to how long your Subaru key fob battery lasts. Battery quality is a significant factor. Not all 2032 coin batteries are created equal. Inconsistent quality control can sometimes lead to batteries that fail prematurely. Even reputable brands can occasionally produce a faulty battery. If you have a battery tester, checking the new battery before installation is a worthwhile step to ensure it’s properly charged. For consistent performance, consider using well-known brands like Energizer or Duracell. While Panasonic batteries are also reliable, ensure you’re purchasing genuine ones if ordering online.
Your usage habits also play a crucial role in battery longevity. Do you frequently press the lock/unlock buttons repeatedly as you approach or leave your Subaru? This habit, while common, can significantly drain the battery faster. A practical solution is to utilize your Subaru’s touch-enabled locking and proximity unlocking features. These features reduce the need for excessive button pressing, conserving battery life. For those moments when you might instinctively reach for the buttons after stepping away, consider using the MySubaru/Starlink app to manage locking and unlocking remotely.
Another often-overlooked factor is the proximity of your key fob to your Subaru when not in use. Evidence suggests that keeping your smart fob too close to your vehicle can cause a continuous signal exchange. This constant communication can drain both the vehicle’s battery and the key fob battery more rapidly. To mitigate this, store your key fob further away from your Subaru when at home. Alternatively, using a Faraday cage or a signal-blocking valet tray can effectively prevent signal leakage and extend battery life.
In conclusion, replacing the battery in your Subaru key fob might become necessary sooner than expected due to battery quality, usage patterns, and storage habits. By being mindful of these factors and adopting the suggested solutions, you can optimize your key fob battery life and minimize unexpected replacements.
