This is a nice link that may help you.
Programming garage door opener ford expedition.
Universal garage door opener.
Location and color of the button may vary by garage door opener manufacturer.
Homelink is a universal opener that you must use a remote to program.
Press and hold the two outer buttons on your on board system for up to 20 seconds until the indicator light on the system begins blinking.
Refer to the garage door opener instruction manual or call homelink customer assistance at 1 800 355 3515.
For ford owners who are using a garage door opener by genie sommer or who have an older generation of homelink in model years 2008 and earlier select your training videos from the list beneath the main video.
Choose which homelink button you d like to program.
500 2007 2010 c max 2013 2020 crown victoria 2007 2010 edge 2008 2021 escape 2007 2021 excursion 2007 2010.
Watch the light on the homelink system.
I have a older chamberlin unit 2006 that took a few tries but eventually the car2u worked.
This indicates proper programming.
Press and hold both the transmitter button and your selected homelink button.
Car2u is a rolling code opener that you push the learn button on the door opener then press and hold car2u button.
Turn on your vehicle.
Press and hold the homelink button and garage door opener button simultaneously until the light changes from flashing slow to flashing rapidly.
Press and hold the transmitter button and the homelink button you want to assign the garage door to at the same time.
Programming your garage door opener with homelink.
Hold your old garage door transmitter a couple inches away from the homelink button panel.
Step 2 hold your remote three inches away from the on board system and press and hold the open button on the garage or gate opener remote and the button you are programming on the system.
Locate the training button on the garage door opener receiver.
Position your current garage door opener 1 3 inches away from the button you wish to program you can pick any of the three.