I have had the car for six months, and it has already been in the shop FIVE TIMES due to problems with the computer system.
This is the worst quality auto that I have ever owned. It has constantly been in the shop, and I am told time and again that Lexus is "working on the problem"! I am now told that it is to due a engine computer that malfunctions in cold weather. I switched after owning BMW's for the past 20 years, and will never do that again.
The Lexus is basically a Toyota with ten grand tacked on the price tag. Toyota is in a terrible quality slump (Consumer Reports no longer recommends the Camry and Tundra models) so problems with all product lines are to be expected.