Recently purchased a 2015 prius, and I cannot sync it with the Liftmaster garage door opener. I have tried the on-line suggestions and none work.
Sometimes it's the garage door that needs a repeater signal. We changed to a Craftsman garage door opener and the Homelink stopped working. We needed a "Homelink Compatibility Bridge Kit". Does your LiftMaster have a yellow antenna wire or yellow "LEARN" button?