there is always a time limit. depends on garage door motor head model. my Genie times out
in about 5-10 secs. fortunately, i have low overhead and can park my car beneath the
motor head. open sunroof and stretch out to invoke LEARN function...and with other hand,
press the button in car.
most folks have taller ceilings so require 2 people
N47º34' W122º 18'