How do you program a lift-master garage door to a 2007 Cadillac Escalade?

To program a LiftMaster garage door opener to a 2007 Cadillac Escalade, first ensure your vehicle is parked inside the garage. Then, press and hold the two outer buttons on the Escalade's HomeLink system until the indicator light begins to flash. Next, press and hold the button on the LiftMaster remote control while simultaneously pressing the programmed HomeLink button until the indicator light changes from a slow to a rapid blink. Finally, test the system by pressing the programmed HomeLink button to open or close the garage door.