I got a 98 GS4. Recently I noticed after I wash my car, the headlights get filled with water moisture. After this I have been noticing other Lexus car around town and just everywhere I go, and most of them seem to have some sort of moisture problem on either one light or another just like me. Is this like the normal thing for Lexus lights or something? Does anyone else have this problem and if so, how do you fix it besides buying new headlights?

 

Lights/seals need to be replaced. Had this problem on a SC400 and it was fixed under warranty. It won't get any better with time.