This problem, is one that Nissan has had trouble with, since the Xterra came out 9 yrs ago--

--You would think, that they would have slowly coerrected it, after a No. of complaints--Evidentaly not--

--If you had to pay for the repair, it would be expensive and then who knows how long the captive nuts would last then ??

--All I can say is stick to your guns and make a total PITA of yourself, even Talk to a lawyer (friend) cost/cost??--

--You can fixit yourself, if you have to, but you'll have to be able to take the headliner partially down, tighten the screws (2-man job)and reinstall correctly--very tough job and I would be a bit PRESENT with the Dealer-main man--good luck--JIMBO