I bought my IS-250 in Jan 07. I think it is a really great car except for one thing, which is the heating/venitlation system. It leaves me utterly bewildered and unable to get warm air where and when I want it. We can have warm bottoms and cold tops or vice versa, but NEVER together. The trouble with it, I believe, is that it is so automated and so programmed according to what Lexus think is right, that in the end I find myself continually fiddling with it to try and get it right for me. No success so far. I am sure it will be fine in the summer when we will be able to get cold air where and when we want it. Winter time is a different story though. I took it back to find out if anything can be done, and it seems that the problem is a sunshine sensor in the windscreen. When this picks up sunshine, it lowers the temperature by 3C and it cannot be disconnected, which would clearly be the answer. Why do they find this a good idea? What about sunny days in winter? The whole thing, at the moment is far too clever for me.
Any other thoughts on this?
John