Other information:
Garage Door Opener Limitations
Canadian radio-frequency laws require
transmitter signals to time-out (or quit) after
several seconds – which may not be long
enough for HomeLink to pick up the signal.
U.S. gate operators time-out in the same
manner...
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated. If
you operate your vehicle occasionally under
any of these conditions, it is not necessary
to perform the extra maintenance...