2010 GMC Acadia Owner's Manual - Page 179

Instruments and Controls 7. Firmly press and release the "Learn" or "Smart" button. After you press this button, you will have 30 seconds to complete Step 8. 8. Immediately return to the vehicle. Firmly press and hold the Universal Home Remote button, selected in Step 3 to control the garage door, for two seconds, and then release it. If the garage door does not move, press and hold the same button a second time for two seconds, and then release it. Again, if the door does not move, press and hold the same button a third time for two seconds, and then release. The Universal Home Remote should now activate the garage door. To program the remaining two Universal Home Remote buttons, begin with Step 2 of "Programming the Universal Home Remote System." Do not repeat Step 1, as this will erase all previous programming from the Universal Home Remote buttons. 5-55 Gate Operator and Canadian Programming If you have questions or need help programming the Universal Home Remote System, call 1-800-355-3515 or go to www.homelink.com. Canadian radio-frequency laws require transmitter signals to time out or quit after several seconds of transmission. This may not be long enough for Universal Home Remote to pick up the signal during programming. Similarly, some U.S. gate operators are manufactured to time out in the same manner. If you live in Canada, or you are having difficulty programming a gate operator or garage door opener by using the "Programming Universal Home Remote" procedures, regardless of where you live, replace Step 3 under "Programming Universal Home Remote" with the following: Continue to press and hold the Universal Home Remote button while you press and release every two seconds (cycle) the hand-held transmitter button until the frequency signal has been successfully accepted by the Universal Home Remote. The Universal Home Remote indicator light will flash slowly at first and then rapidly. Proceed with Step 4 under "Programming Universal Home Remote" to complete the training procedure.