Find the learn button on your garage door opener head unit. Press and hold the button, the indicator light will usually glow for 30 seconds. Within the 30 seconds, press and hold the button on your hummer that you wish to operate the garage door. Release the button when the motor units lights blink, it has learned the code. If there are no lights, two clicks will be heard, that should do it.
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Find the learn button on your garage door opener head unit. Press and hold the button, the indicator light will usually glow for 30 seconds. Within the 30 seconds, press and hold the button on your hummer that you wish to operate the garage door. Release the button when the motor units lights blink, it has learned the code. If there are no lights, two clicks will be heard, that should do it.