<h1>2003 Acura RSX Keyless Entry Remote Fob Programming Instructions</h1> <p><b> Important:</b> You can program up to three remote transmitters. If a fourth is added, the first programmed remote will be erased. All doors and the hatch must remain closed throughout the process. It’s essential to follow each step within the specified 1–4 second intervals unless otherwise noted.</p> <p><b> Step-by-Step Programming Instructions</b></p> <ul> <li>Step 1: Turn the ignition switch to the ON (II) position.</li> <li>Step 2: Within 1 to 4 seconds, press the LOCK or UNLOCK button on the remote while aiming it at the receiver located beneath the audio unit.</li> <li>Step 3: Within 1 to 4 seconds, turn the ignition switch OFF.</li> <li>Step 4: Within 1 to 4 seconds, turn the ignition switch back to ON (II).</li> <li>Step 5: Within 1 to 4 seconds, press the LOCK or UNLOCK button again with the remote aimed at the receiver.</li> <li>Step 6: Within 1 to 4 seconds, turn the ignition switch OFF.</li> <li>Step 7: Within 1 to 4 seconds, turn the ignition switch ON (II).</li> <li>Step 8: Within 1 to 4 seconds, press the LOCK or UNLOCK button again while aiming at the receiver. Step 9: Within 1 to 4 seconds, turn the ignition switch OFF.</li> <li>Step 10: Within 1 to 4 seconds, turn the ignition switch ON (II).</li> <li>Step 11: Within 1 to 4 seconds, press the LOCK or UNLOCK button on the remote with it still aimed at the receiver.</li> <li>Step 12: The door lock actuators should cycle, indicating the system has entered programming mode. Within 1 to 4 seconds, press the LOCK or UNLOCK button again on the same remote.</li> <li>Step 13: Within 10 seconds, aim any additional remotes (up to two more) at the receiver and press the LOCK or UNLOCK button on each. The door locks should cycle to confirm each remote has been accepted.</li> <li>Step 14: Turn the ignition switch OFF and remove the key.</li> <li>Step 15: Test all remotes to ensure proper function of the lock and unlock buttons.</li> </ul>