My LiftMaster or Chamberlain remote control has a green light on the front. How do I code it?
A remote control with the green light on the front and no code switches inside is called a “billion code” remote. This is because each remote has a unique code, which is one of over 3.5 billion codes. These computer-programmed codes will never be duplicated in our lifetime. This type of remote control will only work with our openers manufactured since July 15, 1992 that have a green Smart/Learn button. They will not work with Security+® garage door openers. To program the remote control, first locate the green smart/learn button. On our chain drive models, this button is on the end farthest from the door. On our belt and screw drive models, it is on the right side as you face the door from the opener. Push and hold the button on the new remote control and at the same time, push and release the green smart/learn button. Let go of the button on the remote control. The remote should now be programmed. If you have lost a remote, you should erase all of the codes in the receiver by pressing