To program LiftMaster garage door openers, users must follow specific instructions
Understanding the Basics of LiftMaster Programming

Locating the Learn Button on Your LiftMaster Opener
Initiating Programming Mode on Your Garage Door Opener

Programming Your LiftMaster Remote Control
Pressing and Releasing the Learn Button to Enter Programming Mode

Programming Multiple Garage Door Openers with a Single Remote
Using a New PIN for Each Additional Garage Door Opener

Downloading the Owner’s Manual for LiftMaster Garage Door Openers