1. Open the driver's door.I found those instructions in this honda-acura.net forum thread. You might try searching around on there (or even posting) if you keep having trouble. Of course, talking to your local Honda dealer couldn't hurt, either.
2. Push the driver's power door lock switch to the unlock position and hold it. (Continue to hold the switch during this procedure.)
3. Insert the key into the ignition switch, then remove it. Repeat this four more times (five times total) within 10 seconds. (You must complete steps 3 and 4 within 10 seconds or the system will exit the programming mode.)
4. Insert the key into the ignition switch. After you insert the key, make sure the power door locks cycle to confirm that the system is in the programming mode.
5. Press the "LOCK" or "UNLOCK" button on the transmitter. All the power door locks (except the driver's door) should cycle to confirm that the system accepted the transmitter's code.
6. To program a second transmitter, press its "LOCK" or "UNLOCK" button within 10 seconds of programming the first transmitter.
7. Release the master power door lock switch to exit the programming mode.
posted by CrayDrygu at 9:48 PM on July 25, 2006