GMC 2006 Sierra - Manual (Page 171)

5. Press and hold the newly-trained Universal Home
Remote button and observe the indicator light.
If the indicator light stays on constantly, programming
is complete and your device should activate when
the Universal Home Remote button is pressed and
released.
To program the remaining two Universal Home
Remote buttons, begin with Step 2 under
“Programming Universal Home Remote.”
Do not repeat Step 1 as this will erase all of
the programmed channels.
If the indicator light blinks rapidly for two seconds and
then turns to a constant light, continue with Steps 6
through 8 following to complete the programming of
a rolling-code equipped device, most commonly,
a garage door opener.
6. Locate in the garage, the garage door opener
receiver (motor-head unit). Locate the “Learn” or
“Smart” button. This can usually be found where
the hanging antenna wire is attached to the
motor-head unit.
7. Firmly press and release the “Learn” or “Smart”
button. The name and color of the button may
vary by manufacturer.
You will have 30 seconds to start Step 8.
8. Return to the vehicle. Firmly press and hold the
programmed Universal Home Remote button for
two seconds, then release. Repeat the press/hold/
release sequence a second time, and depending on
the brand of the garage door opener, or other rolling
code device, repeat this sequence a third time to
complete the programming.
The Universal Home Remote should now activate
your rolling-code equipped device.
To program the remaining two Universal Home Remote
buttons, begin with Step 2 of “Programming Universal
Home Remote.” You do not want to repeat Step 1,
as this will erase all previous programming from
the Universal Home Remote buttons.
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