2002 Ford Explorer Programming a new remote alarm

This is a very simple task. First you must be in the car with all the doors shut. Insert the key into the ignition and cycle (turn it on to the accesory position and then off) quickly until all the doors lock and unlock. Make sure you are ready with the remote because you only have a few seconds. As soon as all the doors lock and unlock push the lock button on your new remote. If the doors lock congrats you are done. If not do the same cycle again. Hope this helps you!