2019 Honda Civic Key Fob Programming Guide

Quick Reference

Step-by-Step On-Board Programming

Unfortunately, the 2019 Honda Civic does not support DIY, on-board programming for key fobs. This means you cannot program a new key fob yourself by performing a series of steps with your car's ignition. The immobilizer system in newer Honda models, including the 2019 Civic, requires specialized diagnostic equipment to link a new key fob with your vehicle's computer. This process is often referred to as "pairing" or "coding" the key.

Battery Replacement

1. Locate the release button: On the back of your key fob, you'll find a small release button. Press and hold it.
2. Remove the emergency key: While holding the button, pull out the emergency key blade from the bottom of the fob.
3. Separate the two halves: With the emergency key removed, you'll see a small slot. Use a flathead screwdriver or coin to carefully pry apart the two halves of the key fob casing.
4. Remove the old battery: Gently pry out the old CR2032 battery. Note the orientation of the positive (+) side.
5. Insert the new battery: Place a new CR2032 battery into the fob with the positive (+) side facing up, matching the orientation of the old battery.
6. Reassemble the fob: Carefully snap the two halves of the key fob back together until you hear a click. Reinsert the emergency key blade.

Where to Buy a Replacement Fob

• Honda Dealership:

  • Pros: Guaranteed genuine Honda part, programming included (though at an additional cost), transponder chip coding handled.
  • Cons: Most expensive option. A new OEM fob can range from $150-$300, plus $100-$200 for programming and key cutting.
  • Ballpark Price: $250 - $500+ total.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership, can provide and program both OEM and high-quality aftermarket fobs, can cut the key blade on-site. Many are mobile and can come to you.
  • Cons: Quality of aftermarket fobs can vary; ensure the locksmith uses reputable brands.
  • Ballpark Price: $100 - $300 for an aftermarket fob including programming and cutting, or $150 - $400+ for an OEM fob with services.

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

  • Pros: Cheapest option for the fob itself. Wide selection of OEM and aftermarket fobs.
  • Cons: You still need to find a locksmith or dealership to cut the key blade and program the fob. There's a risk of purchasing a counterfeit or incompatible fob. Programming and key cutting costs will be separate.
  • Ballpark Price: Fob only for $30 - $100 (aftermarket) or $80 - $200 (OEM), plus separate costs for cutting and programming ($100 - $300).

If On-Board Programming Isn't Supported

As mentioned, the 2019 Honda Civic requires a diagnostic scan tool for key fob programming. This is because the key fob contains a transponder chip that communicates with the vehicle's immobilizer system. This system is a security feature designed to prevent your car from being started without the correct key. When a new key fob is programmed, its unique transponder code is registered with the car's immobilizer, allowing the engine to start.

This makes professional programming a necessity. You should expect to pay a fee for this service, whether you go to a Honda dealership or a certified automotive locksmith. The costs typically cover both the programming of the remote functions (lock, unlock, trunk) and the coding of the transponder chip in the key to allow the car to start.

Be prepared to provide proof of ownership (registration, ID) when having a new key programmed, as this is a security measure.

Find a mobile locksmith or shop on Repairius.