BillK

Well, they are giving me a choice, and they made a appointment for me to specifically come back and have them set....I was thinking since I have the choice, why not choose, Duh, LOL, I don't know. I guess you are right, I could leave it the same; but, I was wondering if one worked better over the other. you are so right though; if it aint broke, don't fix it. ← I changed mine to unlock the doors when the car is placed in park, it got annoying having to unlock the doors everytime I wanted to get out or pickup someone. Didn't realize the doors could be programmed to lock at 13mph, mine lock when the car is put in drive. I left all the other settings at their default.

I have the same problem with my 2000 RX300, only the noice is coming from the lower servo motor which appears to control hot/cold vs mode. The problem is this one seems impossible to remove as it is behind the aluminum freon lines. I have noticed that if you move the settings between hot/cold the noice goes away temporarily. Any ideas?

Also, for what it's worth, my RX300 is 2wd with 75k miles and the only real problem's I have had are 1) Muffler replaced under warranty @60k miles and 2) The throttle position sensor mentioned above.

My wife's 2000 rx300 did the same thing at 70k miles, a definite clunking when shifting between P, R, D. Turned out to be the throttle position sensor, Lexus dealer replaced it for $100, shifts fine now.