After a week of going back and fore with Lexus h/o by email, after they kept asking for details of VIN numbers etc, as they couldn't trace my car despite the car having had a full service history with them, they have now confirmed that rattles are only covered for 6 months!! My car has an annoying rattle from the dashboard.
I find this disgusting as a so called "premium" car shouldn't rattle and buzz, and if it does it should be covered for at least the full warranty period.
On another note, I have just had the 40,000 mile service done (at only 30,000 miles!) and MOT done at an independent for £179, Lexus were quoting nearly £500! I certainly would not pay these ridiculously inflated prices if they will not even sort out a rattle.
The car is an incredible piece of engineering, but sadly the arrogant/overpriced dealers and head office let the car down, I have often thought the IS300h should be a great company car, but surely the massively inflated servicing prices compared to other brands knock it out of contention?