2024 Subaru Crosstrek Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2024 Subaru Crosstrek does not support DIY on-board programming for its key fobs. The sophisticated immobilizer system and keyless access features require specialized diagnostic equipment to program new key fobs to the vehicle's computer. This means you will need to visit a Subaru dealership or a qualified automotive locksmith to have a new key fob programmed.

Attempting to program a new key fob without the correct equipment can result in the fob not working or, in some cases, the vehicle entering an immobilizer lockout state, requiring additional professional service.

Battery replacement

1. Locate the small release button or tab on the side of the key fob. Press or slide it to release the emergency key blade. Pull the key blade out.
2. With the emergency key removed, you will see a small slot or indentation where the key blade was. Carefully insert a small flat-head screwdriver or a coin into this slot.
3. Gently twist the screwdriver or coin to pry the two halves of the key fob apart. Be careful not to use excessive force to avoid damaging the casing.
4. Once the two halves are separated, you will see the CR2032 coin cell battery. Note its orientation (positive (+) side up or down).
5. Using a non-metallic tool (like a small plastic pry tool or your fingernail), carefully remove the old battery.
6. Insert the new CR2032 battery with the positive (+) side facing the same direction as the old one.
7. Align the two halves of the key fob and gently press them back together until they click securely into place.
8. Reinsert the emergency key blade into the fob.

Test the key fob functions to ensure it is working correctly.

Where to buy a replacement fob

• Subaru Dealership:
  • Pros: Guaranteed genuine OEM part, professional programming, and warranty support.
  • Cons: Most expensive option. Expect to pay $250 - $400 or more for the fob and programming.
• Automotive Locksmith:
  • Pros: Often more affordable than the dealership, can come to your location (mobile locksmiths), and can program both OEM and many aftermarket fobs. They also have the necessary diagnostic tools.
  • Cons: Prices can vary, ensure the locksmith has experience with Subaru vehicles and uses reputable parts. Expect to pay $180 - $350 for the fob and programming.
• Online Retailers (e.g., Amazon, eBay):
  • Pros: Lowest upfront cost for the fob itself. You can find both OEM and aftermarket options.
  • Cons: You still need to pay for programming separately, which can negate the savings. There's also a risk of purchasing a counterfeit or incompatible fob. Always verify the FCC ID (WAZSKE13D02) when buying online. Expect to pay $70 - $150 for just the unprogrammed fob.

If on-board programming isn't supported

As mentioned, the 2024 Subaru Crosstrek key fobs require specialized equipment for programming due to their advanced immobilizer system. This system incorporates a transponder chip within the key fob that communicates with the vehicle's immobilizer to allow starting. Without proper programming, the vehicle will not recognize the new key fob, and it will not be able to start the engine.

The cost expectations for professional programming (which includes the key fob itself and the service) range from $180 to $400 or more, depending on whether you choose a locksmith or a dealership. This price covers not only the physical key fob but also the technician's labor and the use of their specialized scan tool to link the new fob to your vehicle's immobilizer system.

Find a mobile locksmith or shop on Repairius.