Hummer 2007 H3 - Manual (Page 137)

5. After entering the switch settings, press and
release all three buttons at the same time.
The indicator lights will turn on.
6. Press and hold the button you would like to use
to control the garage door until the garage door
moves. The indicator light above the selected
button should slowly blink. You may need to
hold the button from five to 55 seconds.
7. Immediately release the button when the
garage door moves. The indicator light will
blink rapidly until programming is complete.
8. Press and release the button again. The
garage door should move, confirming that
programming is successful and complete.
To program another device such as an additional
garage door opener, a security device, or home
lighting, repeat Steps 1–8, choosing a different
function button in Step 7 than what you used for the
garage door opener.
Programming Universal Home
Remote — Rolling Code
Rolling code garage door openers are used for
garage doors produced after 1996 and are
code protected. Rolling code means the coded
signal is changed every time your remote control
garage door opener is used.
Programming a rolling code garage door opener
involves time-sensitive actions, so read the
entire procedure before you begin. If you do not
follow these actions, the device will time out
and you will have to repeat the procedure.
Follow these steps to program up to three channels:
1. Press the two outside buttons at the same
time for one to two seconds, and immediately
release them.
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