So recently I have discovered a stain forming on my driver door, coming from the mirror and running down. I thought this was weird as I take regular care of the car as did the previous owner. I figured I would be able to buff it out as it was probably only the exterior coat problem and was going to take care of it myself. Since I noticed it, I have seen two or three same gen cars with the same stain and began to think this may be a problem more people are dealing with. I wonder if this would be worth bringing up to Lexus. Has anyone else seen the same thing happen to their car?