2015 Subaru Crosstrek Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2015 Subaru Crosstrek does not support DIY on-board programming for its key fobs. The vehicle's security system requires specialized diagnostic equipment to program new key fobs and integrate them with the immobilizer system. This means you will need to seek assistance from a Subaru dealership or a qualified automotive locksmith.

Attempting to program a new key fob without the proper equipment can result in the key not working or, in some cases, can inadvertently de-program existing working keys, leaving you stranded.

Battery replacement

Replacing the battery in your 2015 Subaru Crosstrek key fob is a simple process:

1. Locate the small notch or slot on the side of the key fob. This is usually where the key ring attaches.
2. Insert a small flat-head screwdriver or a coin into the notch and gently pry the two halves of the fob apart. Be careful not to use excessive force, as you could damage the casing.
3. Once the fob is open, you will see the circuit board and the battery. Note the orientation of the battery before removing it.
4. Carefully remove the old CR1632 battery.
5. Insert the new CR1632 battery, ensuring the positive (+) side is facing up (or as it was in the original orientation).
6. Align the two halves of the key fob and snap them back together until you hear a click. Test the fob to ensure it's working correctly.

Where to buy a replacement fob

When considering where to purchase a replacement key fob for your 2015 Subaru Crosstrek, you have a few options, each with its pros and cons:

• Subaru Dealership:

  • Pros: Guaranteed to be an authentic OEM part, often comes with a warranty, and they can program it for you on-site.
  • Cons: Most expensive option. A new key fob and programming can cost anywhere from $200 to $400 or more.

• Automotive Locksmith:

  • Pros: Locksmiths often have access to OEM and high-quality aftermarket fobs and the necessary programming equipment. They are typically more affordable than dealerships.
  • Cons: Prices can vary, so it's wise to get a few quotes. Ensure the locksmith is reputable and experienced with Subaru systems.
  • Ballpark Price: Expect to pay between $150 and $300 for a new fob and programming, depending on the locksmith and your location.

• Online Retailers (e.g., Amazon, eBay):

  • Pros: Often the cheapest option for the physical fob itself.
  • Cons: You're buying just the unprogrammed fob. You'll still need to pay a locksmith or dealer to cut the key blade (if applicable) and program it to your vehicle. Be cautious of counterfeit or incompatible fobs. Always verify the FCC ID (CWTWB1U811) and OEM part number (88036-FJ000) for compatibility.
  • Ballpark Price: The fob alone might cost $30-$80, but remember to factor in programming and cutting costs from a professional.

If on-board programming isn't supported

Since on-board programming is not an option for your 2015 Subaru Crosstrek, you will definitely need a professional for programming. Here's what to expect:

• Cost Expectations: As mentioned above, expect costs to range from $150 to $400 depending on the source (dealership vs. locksmith) and whether you're supplying your own fob or purchasing one from them.
• Immobilizer Transponder: The 2015 Subaru Crosstrek utilizes an immobilizer system that requires a transponder chip within the key fob to be programmed to the vehicle's engine control unit (ECU). This is a crucial security feature that prevents the car from starting if an unprogrammed or incorrect key is used. This transponder programming requires specialized diagnostic tools, which is why DIY programming is not possible.
• Key Blade Cutting: If your new fob includes an integrated key blade, it will need to be cut to match your vehicle's ignition and door locks. This service is typically provided by dealerships or locksmiths and adds to the overall cost.

Find a mobile locksmith or shop on Repairius.