2004 Nissan Murano body & structure problems

Exiting a highway and taking ramp to enter an avenue, driver lost control of the car turning right at intersection. Front left tire hit the curve side and car rolled over 2 full rolls. Driver and passenger had seat bells on. Car body took strong hits on both sides, posts between side windowsroof, windshield frame, hood. Seat bells never locked down during roll over and none of the airbags deployed. Driver and passenger had head, knees and back injuries.

I have a 2004 nissan murano se. At approximately 50,000 miles, the drivers' side sun visor had some sort of internal mechanical failure which makes it fall down in front of my face while driving. My extended warranty company refuses to fix it, claiming it is a "trim" item, and the dealership claims it is no longer their problem as the car isn't under warranty. However, it seems to me that this is a safety item, since every time it falls down, it obscures my view of the roadway.