GMC 2011 Sierra Owner's Manual page 212

5-64 Instruments and Controls
Programming Universal Home
Remote Fixed Code
For questions or help programming
the Universal Home Remote
System, call 1-866-572-2728
or go to www.learcar2u.com.
Most garage door openers sold
before 1996 are Fixed Code units.
Programming a garage door opener
involves time-sensitive actions, so
read the entire procedure before
starting. Otherwise, the device will
time out and the procedure will have
to be repeated.
To program up to three devices:
1. To verify that the garage door
opener is a Fixed Code unit,
remove the battery cover on the
hand-held transmitter supplied
by the manufacturer of the
garage door opener motor.
If there is a row of dip switches
similar to the graphic above,
the garage door opener is a
Fixed Code unit. If you do
not see a row of dip switches,
return to the previous section
for Programming Universal
Home Remote Rolling Code.
Your hand-held transmitter
can have between 8 to 12 dip
switches depending on the
brand of transmitter.
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.