Originally Posted by merkil

That's what you need to do first. Cycle the handheld transmitter every 2 seconds while holding down the homelink button then it will give you an indication if you have rolling code (series of blinks). At that point you have like 30 seconds to press the learn button on the actually garage opener. Helps to have a friend cause you will have to climb a ladder quickly. If you don't have rolling code, it will pick it up after cycling the handheld.