Jim in Kalamazoo....99 GS300.....I am sorry to hear all these complaints and problems with these newer cars.....like some of the other responders suggested,,,,,try another dealer....as the the four dealers in Michigan are overwelmingly great....up to including driving over 110 miles to pick up my car...leave me with a brand new (300-400 miles) loaner to go shoe everybody, and cheerfully return my car 2-3 days later with a ball cap of coffee cup on the front seat...they overnight things like new floor mats to me....and I used the extended warranty (7-year bumper to bumper which was well worth the $1,200. As the steroe display fizzled out, a door window regulator got very loud, and they put a spoiler on the deck lid comped. And Lexus Corporate sent me Belgium chocolates 2-3 times for completing evaluations.
A problem I bitched for years was the back lit gauge brillancy was all over the place,,,,sometime dimming out to nothing,
at night,,,,,,and the sunroof nylon slides creaked and cracked and actually "snapped"' like they were breaking. when they changed temperature guickly...... they gave me a song & dance and put "shims' in them but two of my brand new lonars did the very same damn thing....so my two notorious problems that i griped sbout for over five years they could never resolve!!
I an very much a lexus customerand think my 99 has treated me fine...it still looks & runs like new...always been garaged so wee'l see how many more years Ill get out it. I'm seeing many more parts available for do it yourselfers.when the first started out..they were pretty exclusive with parts and not many other dealers would go near a timing belt change!
Kind Regards....