2023 Subaru Forester Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2023 Subaru Forester does not have an on-board programming procedure for new key fobs. This is because modern Subaru vehicles, including the 2023 Forester, are equipped with a sophisticated immobilizer system that requires a specialized scan tool to program new keys. This security measure is in place to prevent unauthorized key duplication and vehicle theft.

To program a new key fob for your 2023 Subaru Forester, you will need to either visit a Subaru dealership or a qualified automotive locksmith. They have the necessary diagnostic equipment and software to access the vehicle's computer and program the new key.

Battery replacement

Replacing the battery in your 2023 Subaru Forester key fob is a simple process that you can do yourself.

1. First, locate the small release button on the back of the key fob.
2. Press this button to release the emergency key from the fob.
3. Once the key is removed, you will see a small slot. Use a small flathead screwdriver or a coin to gently pry the two halves of the key fob apart.
4. The fob will split open, revealing the internal components and the battery.
5. Take note of the battery's orientation and then carefully remove the old CR2032 battery.
6. Insert the new CR2032 battery, making sure it is properly seated with the positive side facing up.
7. Snap the two halves of the key fob back together until you hear a click.
8. Finally, reinsert the emergency key back into the fob.

Where to buy a replacement fob

There are a few options for purchasing a replacement key fob for your 2023 Subaru Forester:

• Subaru Dealership: This is the most expensive option, but you are guaranteed to get a genuine OEM key fob that is fully compatible with your vehicle. The cost of the fob and programming at a dealership can range from $200 to $400.
• Automotive Locksmith: A qualified automotive locksmith can often provide you with a high-quality aftermarket key fob that works just as well as the OEM version, but at a lower cost. Locksmiths can also program the key for you, and their prices are typically more competitive than dealerships, with costs ranging from $150 to $300.
• Online Retailers (Amazon, etc.): You can find a wide variety of aftermarket key fobs on websites like Amazon. While this is often the cheapest option, there is a risk of purchasing a low-quality or incompatible product. If you choose to buy a fob online, make sure to verify the FCC ID and part number to ensure it is compatible with your 2023 Subaru Forester. You will still need to have the key programmed by a dealership or locksmith.

If on-board programming isn't supported

As mentioned earlier, the 2023 Subaru Forester requires a specialized scan tool to program new key fobs. This is because the key fob is not just a remote for locking and unlocking the doors; it also contains a transponder chip that communicates with the vehicle's immobilizer system. This transponder chip is a crucial part of the vehicle's security system, and it must be properly programmed to the vehicle's computer in order for the engine to start.

When you take your vehicle to a dealership or locksmith to have a new key programmed, they will use a scan tool to connect to the vehicle's OBD-II port. This allows them to access the immobilizer system and register the new key. The process typically takes about 30-60 minutes. The cost for this service can vary depending on the location and the specific locksmith or dealership, but you can generally expect to pay between $100 and $200 for the programming itself, in addition to the cost of the key fob.

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