Well, I don't know what the other post said, but here is what worked for me on my 91... First, the entire mirror assembly - stalk and all - just pops out of its base above the windshield. Just give it a tug and a twist. Then, the black plastic band around the glass comes off with a little bit of wiggling and prising. Once it is off, you will come to the clear glass protective cover for the mirror. Just take it off and go wash it up. Most of the fogginess will be on it. Beneath the clear glass is the mirror itself. Give the mirror a shot of Windex and a little rub. Take note of the springs inside the mirror which operate the day/night feature. I recall that they can pop out; but they are easy to put back together. Now, put the clean clear glass back over the mirror and secure it with the black plastic band. Make sure the plastic band snaps firmly back into place. Go stick the whole assembly back into its base. Voile! Now you can see the jerk in the Lexus bearing down on you. Anyone--let him know if I missed something