How do you program the mirror garage door opener on a 2012 Hyundai Tucson?

Press and hold the desired "Home" garage button on the mirror until it starts blinking (approx 20 seconds)… Do not release…

Press and hold the button on the hand-remote until the the light on the mirror starts blinking at a much higher rate.

Tip: Hold the hand-remote approximately 4-6 inches from the mirror.

Done.