I followed the instruction from Lucid and below was what I did for my setup:
1- I cleared out the garage and parked the Air inside. Closed the garage door.
2- Turned off any electrical gadgets that could potentially distract me or interfere with the signals.
3- Opened the car’s door and positioned the ladders, with the car's door opened.
4- Got into the car and did the add HomeLink initiation.
5- When the car was ready to accept the signal, I held the remote clicker a couple of inches in front of and below the letter U of the front logo. Garage door now opened. Continued to hold the clicker button until the horn and light blinking.
6- Got into the car and followed the instruction on the screen to the next step.
7- When instructed, I got on the ladder and pressed the Learn button. The pilot light next to the Learn button came on.
8 - Got back into the car immediately, and pressed the TEST HOMELINK button once. Nothing would happen with the garage door at this step. Then pressed the button second time when it was active. Garage door now closed. Waited until the closing was completed then pressed the test button again. Garage door now opened.
9- Confirmed on the screen that it worked.
Now you can painfully repeat the process for any additional garage doors or profiles.
Hope this helps.