Your opener should have a panel on the side of it with a button you can push to get the Lucid to learn it when you're on the homelink settings. That was how I got mine to work with the car, I couldn't get it to work with the clicker. I think the Lucid owners manual gives instructions on how to do it, you just need a ladder and leave the Lucid door open so you can climb up the ladder and push the button on the opener then climb down fast and press the button in the Lucid Homelink to pair it, I think it has a 30 second timer or something annoying like that. I ended up automating my opener with Apple HomeKit via Homebridge so now it just auto-senses when I come home or leave and my apple watch prompts me if I want to run the home automation, so I do it that way. This is only doable if you have a smart garage opener on your WiFi network. Works great, no buttons or fussing and it detects my arrival sooner than the Lucid does, but it's the PITA to set up as you need an old iPad or laptop and a Raspberry Pi or HOOBS box (I got HOOBS), and then have to find the Homekit bridge for the garage opener as it's not native.