Round 2 of "There's moisture in my DS headlight housing.
When I bought my '13 Ram about 5 weeks ago, it had some moisture in the DS headlight housing. I pulled the housing, cleaned out the water, and adjusted the vents. Yes, they were all the way in. A few days later it rained and the moisture was back.
Today, I went all the way. I Pulled the housing, rinsed the inside with RainX windshield washer solution, followed by two rinses with Ozarka bottled water. Meant to use distilled but I forgot to buy it. Shook the excess water out, then used some paper towels taped to the end of a stiff insulated wire (to prevent scratches) to wipe as much of the droplets out as I could. I finished the drying by blowing air from my shop vac. I cleaned the vac and hose thoroughly before using it.
Then I used black RTV to seal the edges and greased all the seals before closing it up. I was very careful not to get grease on the bulbs.
It is supposed to rain on Wed. We will see.