Thanks man seems like you're the only person who actually knows why. Everyone else says "it's in the manuel to vary speed" or something like that. Happy New Year
You guys got this problem, when it rains, the rain just stays on the windshield, it doesn't bead off. I cant see nothing when it rains, even with the wipers at full speed. My 08 IS250 is brand new. 1 week old.