How do you program the garage door opener on a buick lucern?

To program the garage door opener on a Buick Lucerne, first ensure the vehicle is parked outside of the garage. Press and hold the two outer buttons on the HomeLink system (usually located on the rearview mirror or overhead console) until the indicator light starts to flash rapidly. Next, press and hold the button on your garage door remote, while simultaneously pressing the programmed HomeLink button until the light changes from a slow blink to a solid light, indicating successful programming. Finally, test the system by pressing the programmed HomeLink button to operate the garage door.