Buick 2011 Lucerne Owner's Manual page 150

The garage door opener receiver (motor head unit)
could also have a row of dip switches that can be
used when programming the Universal Home
Remote. If the total number of switches on the
motor head and hand held transmitter are different,
or if the dip switch settings are different, use the
dip switch settings on the motor head unit to
program the Universal Home Remote. The motor
head dip switch settings can also be used when
the original hand held transmitter is not available.
Example of Eight Dip Switches with Two Positions
3-44
Example of Eight Dip Switches with Three Positions
The panel of switches might not appear exactly as
they do in the examples above, but they should be
similar.
The switch positions on the hand-held transmitter
could be labeled, as follows:
A switch in the up position could be labeled as
Up, +, or On.
A switch in the down position could be labeled
as Down, , or Off.
A switch in the middle position could be labeled
as Middle, 0, or Neutral.