2015 Honda Civic Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

This procedure will program the remote functions (lock, unlock, trunk) for your 2015 Honda Civic. Please note that this will not program the immobilizer transponder chip, which allows the car to start. That requires a specialized scan tool, typically performed by a locksmith or dealer.

Before you begin:

• Gather all existing and new key fobs you wish to program. Any fobs not programmed during this process will cease to function remotely.
• Ensure all car doors are closed.

1. Insert an existing, already programmed key into the ignition.
2. Turn the ignition to the "ON" (II) position.
3. Press and hold the "LOCK" button on the remote for 1-2 seconds.
4. Within 5 seconds, turn the ignition to the "OFF" (0) position.
5. Repeat steps 2-4 three more times (for a total of four cycles).
6. On the fourth cycle, when you turn the ignition to the "ON" (II) position, keep it in "ON." The door locks should cycle (lock and unlock) automatically, indicating the system is in programming mode.
7. Within 5 seconds of the door locks cycling, press the "LOCK" button on the first remote you wish to program. The door locks should cycle again to confirm successful programming of that remote.
8. If you have additional remotes (including your original ones) to program, press the "LOCK" button on each additional remote within 5 seconds of the previous one. Each successful programming will be confirmed by the door locks cycling.
9. Once all remotes are programmed, turn the ignition to the "OFF" (0) position to exit programming mode.
10. Test all programmed remotes to ensure they function correctly.

Battery replacement

The 2015 Honda Civic key fob uses a CR1616 coin cell battery.

1. Locate the small tab or slot on the side of the key fob case.
2. Carefully use a small flat-head screwdriver or a coin to pry apart the two halves of the fob.
3. Once open, you will see the circuit board and the battery. Note the orientation of the battery (positive (+) side up).
4. Gently pry out the old battery.
5. Insert the new CR1616 battery with the positive (+) side facing up.
6. Align the two halves of the key fob and snap them back together until you hear a click.
7. Test the fob's functions.

Where to buy a replacement fob

• Honda Dealership: You'll get a genuine OEM part specifically designed for your vehicle. They will also handle cutting the key blade and programming both the remote and the immobilizer transponder. This is typically the most expensive option, often ranging from $200 - $350 or more for parts and labor.
• Automotive Locksmith: A qualified automotive locksmith can provide and cut new key blades, as well as program both the remote functions and the immobilizer transponder. They often have access to aftermarket fobs that are identical in function to OEM at a lower cost, or can provide OEM parts. Prices are generally competitive, often $150 - $250, depending on the fob type and complexity of programming.
• Online Retailers (e.g., Amazon, eBay): You can often find aftermarket key fobs or even used OEM fobs for significantly less, sometimes as low as $20 - $50. However, these will require separate services for key cutting and transponder programming. Verify the FCC ID and part number carefully to ensure compatibility. You'll still need to factor in the cost of professional key cutting (often $20-$50) and immobilizer programming (typically $75-$150) from a locksmith or dealer.

If on-board programming isn't supported

While the remote functions for your 2015 Honda Civic fob can be programmed via the on-board procedure detailed above, the immobilizer transponder chip, which is crucial for starting your vehicle, cannot be programmed this way. The vehicle's immobilizer system requires a specialized diagnostic scan tool to link a new transponder chip to the car's computer.

Cost Expectations for Transponder Programming:

• Locksmith: Expect to pay around $75 - $150 for immobilizer programming alone if you provide the fob. If they supply the fob, the cost will be higher but often includes cutting and programming.
• Dealership: Dealerships typically charge a diagnostic fee plus labor for programming, often ranging from $100 - $200 for programming services if you bring your own key. If they supply the key, expect the full higher price mentioned above.

It's always recommended to get the key blade cut and the transponder programmed by a professional (locksmith or dealer) to ensure proper functionality and security.

Find a mobile locksmith or shop on Repairius.