It’s a common frustration for Subaru owners: a key fob with a dead battery. While seemingly simple, several factors can influence how long your Subaru key fob battery lasts. Understanding these can save you from unexpected lockouts and ensure your remote functions reliably. Let’s delve into the primary reasons behind Subaru key fob battery drain and what you can do about it.
One key factor is the quality of the CR2032 coin battery itself. Not all 2032 batteries are manufactured to the same standards. Inconsistent quality control means that occasionally, a subpar battery might slip through. If you’re proactive, using a battery tester to check a new battery before installing it in your fob can be a worthwhile step. This is especially useful even for brand-name batteries like Energizer or Duracell, which are generally reliable and readily available. For those seeking Panasonic batteries, ensure they are genuine when ordering online to guarantee optimal performance. It’s also wise to familiarize yourself with your physical key to manually unlock your Subaru should your fob battery fail unexpectedly. Regularly checking your manual key ensures it works correctly when you need it most, offering a reliable backup entry method. Starting your Subaru with a dead fob is possible, but knowing how beforehand reduces stress if you encounter this situation.
Another often-overlooked aspect is user behavior. Do you frequently press the lock/unlock buttons on your fob as you approach or leave your Subaru? This habit, while common, significantly increases battery consumption. Each button press sends a signal, drawing power from the battery. A more efficient approach is to utilize Subaru’s touch-enabled locking and proximity unlocking features, if your model is equipped. These systems are designed to minimize battery drain by automating locking and unlocking. For those moments of uncertainty after leaving your vehicle, resist the urge to repeatedly press the fob buttons. Instead, use the MySubaru/Starlink app to confirm your car’s lock status, a modern solution that conserves battery life.
Lastly, consider where you store your key fob at home. Evidence suggests that keeping your smart fob too close to your Subaru can lead to battery drain in both the fob and the vehicle itself. When the fob is in close proximity, it can continuously communicate with the car, preventing both from fully entering a power-saving “sleep” mode. To mitigate this, store your fob further away from your Subaru when at home. Alternatively, consider using a Faraday cage or valet box to store your fob. These specially designed containers block electromagnetic fields, effectively preventing communication between the fob and your vehicle and preserving battery life for both.
In conclusion, extending your Subaru key fob battery life involves being mindful of battery quality, usage habits, and storage practices. By choosing reputable batteries, using your fob features efficiently, and storing your fob thoughtfully, you can minimize battery drain and ensure your key fob remains a reliable tool for years to come.
