I normally take my 2000 LX470 to the Toyota every 5,000 miles but to the Lexus dealer for the mile stone services (30,000 & 60,000). The last time that we visited the Toyota dealership I asked about the cost to replace the timing belt and it was $20.00 cheaper at the Lexus dealership. They both insist that we have the belt changed at the 90,000 mile service session.
Also Jim is right about the height control oil. I tried to order this fluid from the Toyota dealer and they had no clue of what I was talking about. If you go to the Toyota dealer for service please advise them not to fill the AHC reservoir.