How to program a 2003 Acura RSX keyless remote?

To program a 2003 Acura RSX keyless remote, start by sitting in the vehicle and closing all doors. Insert the key into the ignition and turn it to the "On" position (not starting the engine) and then back to "Off" twice, ending in the "Off" position. Press the "Lock" button on the remote within five seconds, and the doors should lock and unlock, indicating successful programming. If you have additional remotes, repeat the process for each one within 10 seconds.