It is a LED light. The manufacturer didn't offered any more details other than compatibility issue with some make of TVs. In my case a Chevy. And the light maker couldn't resolve this so it was deleted on later models.
I would think since this is a design fault. Its coverage should not be limited by the warranty period. E.G. the TSB issued by car manufacturers normally would extend long after the warranty period. Besides, the solution they suggested wouldn't actually solve the problem.
To add insult to injury, in addition to denying all responsibilities, they offer to rewire for me at the factory for no charge provided I make the 8 hour trip down there. I can't believe they are serious.