The owner of the car should go out and find a lemon law lawyer. When I had to work with one I didn't have to pay a thing.
(I had a Subaru where the GPS / Stereo would reboot while I drove and loose its settings. After a bunch of replacements, the car still had the problem. I had to catch it on video, though. Subaru ended up declaring the car a lemon after trying to fix it multiple times.)
FWIW: I own two Teslas and their service is horrible. Every time I take it in, they never put the car back together and I have to take it back.