Is your Subaru Forester key fob not working as reliably as it used to? Before you worry about expensive replacements or dealership visits, the solution might be as simple as replacing the battery. This straightforward task can be done at home in just a few minutes with minimal tools. This guide will walk you through the process of Subaru key fob battery replacement, ensuring you can regain full access to your vehicle quickly and efficiently.
Identifying Your Subaru Key Fob Type for Battery Replacement
Subaru has utilized a few different key fob designs over the years. Knowing which type you have is the first step to a smooth battery replacement. Generally, there are three main types of Subaru key fobs, each requiring a specific battery. The most common are the bulging rectangle shape, the teardrop shape, and the older style with an exposed metal key.
If you are unsure which key fob you own, the quickest way to identify it is to consult your Subaru Forester owner’s manual. This manual will provide detailed information about your vehicle’s features, including the specific type of key fob it uses. Once you know your key fob type, you can easily determine the correct battery and follow the corresponding steps below.
Replacing the Battery in a Bulging Rectangle Subaru Key Fob
This type of Subaru key fob, often found in newer models, typically requires a CR2032 battery. Here’s how to replace it:
-
Remove the Emergency Key: Locate the small silver tab on the back of your key fob. Press and hold this tab to release and remove the metal emergency key.
-
Open the Key Fob Casing: Carefully pry open the key fob. You can use a flathead screwdriver inserted into the seam between the two halves of the fob to gently separate them. Be cautious not to apply excessive force to avoid damaging the casing.
-
Locate and Remove the Old Battery: Once opened, you’ll see the round, flat key fob battery. Note its orientation before removal. Gently release the old battery from its housing.
-
Install the New Battery: Take your new CR2032 battery, handling it as little as possible to avoid transferring oils from your fingers. Place the new battery into the housing with the correct side facing upwards (usually indicated by a “+” symbol). Ensure it is securely seated.
-
Reassemble the Key Fob: Carefully snap the two halves of the key fob casing back together until they are firmly closed. Re-insert the metal emergency key until it clicks into place.
Replacing the Battery in a Teardrop Shape Subaru Key Fob
The teardrop-shaped Subaru key fob is an older design and uses a CR2025 battery. The battery replacement process is very similar to the rectangular fob, but there’s no emergency key to remove initially.
-
Open the Key Fob Casing: Just like the rectangular fob, gently pry open the teardrop key fob using a flathead screwdriver in the seam.
-
Locate and Replace the Battery: Open the fob to access the battery. Remove the old CR2025 battery, noting its orientation. Install the new CR2025 battery in the same orientation.
-
Reassemble the Key Fob: Snap the two halves of the teardrop key fob back together securely.
Replacing the Battery in a Subaru Key Fob with an Exposed Metal Key
This older style of Subaru key fob, featuring a permanently visible metal key, uses a CR1620 battery. The key difference here is that this fob has an inner casing within the main exterior casing.
-
Open the Outer Key Fob Casing: Open the main exterior casing of the fob using the same method as described for the rectangular and teardrop fobs – carefully pry it open.
-
Open the Inner Casing: Once the outer casing is open, you will see a second, smaller inner casing. This inner casing usually has small tabs. Press these tabs to release and open the inner casing.
-
Replace the Battery: Inside the inner casing, you’ll find the CR1620 battery. Remove the old battery and replace it with a new CR1620, ensuring correct polarity.
-
Reassemble Both Casings: Close the inner casing first, ensuring it snaps shut. Then, place the inner casing back into the exterior casing and snap the exterior casing closed.
What if Replacing the Battery Doesn’t Solve the Problem?
If you’ve replaced your Subaru Forester key fob battery and are still experiencing issues, it’s possible that the key fob itself may need to be replaced or reprogrammed. For security reasons, purchasing and programming a new key fob often requires the expertise of a certified Subaru dealership.
If you suspect your key fob needs replacement or reprogramming, it’s best to contact your local Subaru dealer. They have the specialized tools and knowledge to diagnose the issue and provide the necessary services. You can easily schedule a service appointment online to have your key fob professionally checked and resolved. Schedule Service
Replacing your Subaru Forester key fob battery is usually a quick and easy fix for common key fob problems. By following these steps, you can often restore your key fob’s functionality and avoid unnecessary trips to the dealership. However, remember that your local Subaru service center is always available to assist with more complex issues or if you prefer professional assistance.
