CHEVROLET Tahoe - Manual (Page 184)

Follow these steps to program up to three devices:
1. From inside the vehicle, press the two
outside buttons at the same time for one to
two seconds, and immediately release them.
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 you press this
button, you will have 30 seconds to complete
the following steps.
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