How do you reset the remote key on alexus sc 430?

To reset the remote key on a Lexus SC 430, first ensure that you are inside the vehicle with all doors closed. Insert the key into the ignition and turn it to the "On" position without starting the engine, then press and hold the "Lock" button on the remote for about 1-2 seconds. Turn the ignition off, then turn it back to "On" and repeat the process to complete the reset. Finally, test the remote to ensure that it functions properly.