With everyone's indulgence, I am duplicating my post about hazy (foggy) headlight covers here, too: Over the past few weeks, I had decided that I must have moisture inside of my headlight covers (a coupe of TSBs exist identifying this problem) - the haze didn't seem to wash off and just seemed to be getting worse. When I wet the headlight lenses, the haze would briefly disappear and - yes - that would seem to indicate that the problem was on the exterior of the light assembly. Nonetheless, boy genius persisted in his belief that it was moisture inside of the lens and was trying to figure out how to get the thing into the dealer (dreaded to do it as I'm always afraid problems will be worse after a trip into people who don't care as much about my cars as I do). Anyway, I absentmindedly started rubbing on a corner of the lens with a wet finger and - lo-and-behold! - the haze was gone!?! ...And stayed gone the entire day! Because of this, I got my bottle of 3M Plastic Cleaner (#39017) and proceeded to clean the headlight lenses. The result? ...absolutely clear, clean and pristine lenses!!!...and they've been that way for several days now, in spite of rain, heat and sunlight!

Bottom line? Before trotting off to the dealer for repair of this problem under a TSB, try polishing the headlight lenses with an appropriate plastic polish (3M's products have been great - I also use gallons of their Perfect-It Gloss Enhancer #39034 which is the best detail spray I've used to date).