2017 Subaru Crosstrek Key Fob Programming Guide

Welcome to your essential guide for programming and maintaining your 2017 Subaru Crosstrek key fob. Whether you've lost a fob, bought an aftermarket replacement, or just need to change the battery, we've got you covered.

Quick reference

Step-by-step on-board programming

Unfortunately, the 2017 Subaru Crosstrek does not support DIY on-board programming for its key fobs. The vehicle's security system requires specialized equipment, typically a diagnostic scan tool, to program new key fobs. This means you will need the assistance of a professional such as a Subaru dealership or an automotive locksmith.

The programming process involves connecting a scan tool to the vehicle's OBD-II port, reading the existing immobilizer data, and then registering the new key fob's unique code into the car's computer. This ensures that only authorized fobs can start the vehicle, providing a high level of security.

Battery replacement

Replacing the battery in your 2017 Subaru Crosstrek key fob is a simple process:

1. Locate the small release button or tab on the side of the key fob and push it to release the emergency key. Pull out the emergency key.
2. With the emergency key removed, you will see a small slot or indentation. Use a small flathead screwdriver or a coin to gently pry open the two halves of the key fob casing.
3. Carefully separate the two halves. You will see the circuit board and the battery. Note the orientation of the old battery.
4. Gently remove the old CR1632 battery. You might need to use the screwdriver to help lift it out.
5. Insert the new CR1632 battery with the positive (+) side facing up (this is typically the side with the writing on it).
6. Align the two halves of the key fob casing and press them firmly together until they snap shut.
7. Reinsert the emergency key.

Test your key fob to ensure it locks and unlocks the doors and starts the vehicle.

Where to buy a replacement fob

When considering where to buy a replacement key fob, you have a few options, each with its own pros and cons:

• Subaru Dealership:

  • Pros: Guaranteed genuine OEM part, expert programming, and often comes with a warranty.
  • Cons: Most expensive option. Expect to pay anywhere from $200 to $400+ for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than the dealership, especially for the programming service. Many locksmiths can also cut and program aftermarket fobs. They often offer mobile services, coming to your location.
  • Cons: Quality of aftermarket fobs can vary. Ensure the locksmith is reputable and uses quality parts.
  • Ballpark Price: $150 to $300 for an aftermarket fob and programming, potentially more for an OEM fob.

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

  • Pros: Potentially the cheapest option for the fob itself. You can find both OEM and aftermarket options.
  • Cons: You're only buying the physical fob; you'll still need to pay for cutting (if applicable) and programming. There's also a risk of receiving counterfeit or incompatible fobs if you don't buy from a reputable seller. Ensure it has the correct FCC ID (CWTWB1U811).
  • Ballpark Price: $20 to $100 for the fob alone, plus programming and cutting costs from a locksmith or dealership.

If on-board programming isn't supported

As mentioned, the 2017 Subaru Crosstrek requires professional programming. This is due to the vehicle's immobilizer system. The key fob contains a transponder chip (often a Texas Instruments 4D-60 or similar type) that communicates with the car's immobilizer. If the transponder signal isn't recognized, the car will not start, even if the key blade fits the ignition.

When budgeting for a new key fob and programming, be prepared for the combined cost of the fob itself, the programming service, and any key cutting that may be required for the integrated emergency key. Mobile locksmiths can often be a convenient and cost-effective middle-ground compared to dealership prices.

Find a mobile locksmith or shop on Repairius.