ya as TheBry said you hold 1 and 3 to clear it, first of all remember that the key has to be in the ignition and the lights have to be able to light up. So you program it by holding the button desired and the garage/gate opener button at the same time, at first the light will flash slowly, and then it should get faster (which means the signal is getting fully programed into the system) when it has been flashing a littel while rapidly you can let go and it should be programmed. There may be a problem with like secure garage openers, i think they are coded or something but i can't get it to program, any ideas on that?