If you have your garage opener's owner's manual, it should tell you the steps. If not, go online and see if it is available. basic steps are: hit a button on the opener to activate listen mode hold a button on the car's mirror until you get a flashing light or a beep wait 5 seconds and try the car's button to open the garage door. That's about all that was needed with my 2010.
Thank you ! I'm so happy with my newly acquired 2010 Prius. I've even given her a name...Cherry Buzz. She's red, of course.
I actually programmed it with the help of another video, a few days ago. Your video was clear and concise and will no doubt help someone in the future. I love this Prius Comradery.