GMC 2010 GMC Sierra, Owner'S Manual

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2. Locate in the garage, the garage door opener
receiver (motor-head unit). Locate the “ Learn ”
or “ Smart ” button. It can usually be found where
the hanging antenna wire is attached to the
motor-head unit and may be a colored button.
Press this button. After pressing this button,
complete the following steps in less than
30 seconds.
3. Immediately return to the vehicle. Press and hold
the Universal Home Remote button that will be
used to control the garage door until the garage
door moves. The indicator light, above the selected
button, should slowly blink. This button may need
to be held for up to 20 seconds.
4. Immediately, within one second, release the button
when the garage door moves. The indicator light
will blink rapidly until programming is complete.
5. Press and release the same button again. The
garage door should move, confirming that
programming is successful and complete.
To program another Rolling Code device such as an
additional garage door opener, a security device,
or home automation device, repeat Steps 1 through 5,
choosing a different function button in Step 3 than what
was used for the garage door opener.
If these instructions do not work, the garage door
opener is probably a Fixed Code unit. Follow the
Programming instructions that follow for a Fixed Code
garage door opener.
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