I'm just curious, is it condensation inside (small droplets visible) or this sun damage thing that is covered by the TSB? I have/had the condensation problem on two other vehicles and traced it down to poor installation practices on the lamps. Dirt on the gasket. On the subsequent R/R I added a thin film of silicone vacuum grease to both sides of the annular (circular) gasket after cleaning it and GENTLY heated the lens with a hairdryer for ~ 10 minutes to drive off the moisture and installed the lamp. Voila! No more fog/mist inside.

Worked for me -