Anyone know if the seat height of the driver's seat can be lowered any more manually by the dealer? I'm only 6' 2" and my hair is on the liner. I'd rather have the seat lowered than lean the seat back farther back than I already have it.

 

I doubt it. The minimum and maximum seat heights are tied into the safety devices like airbags for average drivers. It would not hurt to ask the Lexus people, but your chances would be better to go to a third party that does interior customization for the handicapped. These people can do what you need.