New to the forum. Numerous attempts to program homelink in my 2021 RAM 1500. Tried the tips in the forum. None worked. Kept on trying dozens of times. Finally had another idea starting on step 3 which is for a liftmaster 8355 with MyQ. First few steps are well noted
1. Reset homelink by pressing the two outside buttons for about 20 seconds
2. Hold the original liftmaster near the visor select the buttons on each simultaneously holding both until the lights on each blink rapidly.
3. Instead of hitting the learn button on the garage door opener, use the MyQ app instead.
4 Select the three button (max) remote style and in the next screen select “no programming button on the back”. The App will activate the learning mode.
5. Follow the instructions on screen and be sure to hit next for each step. Essentially, Push the button you want to assign once, push another one, then push the initial button again. It is important to go through the steps on the app.
It worked on both sides of the garage!