What's this LearCar2U thing? Is that the name of this system that GM put in these things when they switched from Homelink? My '08 programmed to my Chamberlain/Liftmaster door operators just fine. It's not quite as easy as Homelink, but not difficult, either. Just a different process. I learned a trick where you have to press and hold whichever button you're programming for about a second, then let go for a second, hold for a second, etc. until the operator responds. Sometimes this process has to be repeated two or three times if the rolling code thing isn't matched up before the programming mode of the operator times out. I used to install overhead doors and automated gates and would always program the customer's cars for them, mainly just so I could check out their rides. lol