Thanks for the reply -- yes, that's the number I called. The rep did some checking with the local Lexus dealer and came back with offer of 50% off parts. BTW, the local dealership is not the dealership where the original work had been done.
I had actually sold the RX350 to our son a few months ago, when we bought a new one. I got involved because I'm pretty anal about maintaining my cars, and I had all the records and receipts for the car. We had convinced our son that because of his job (military) he and his wife needed a reliable vehicle, and the Lexus was not only a great car, but every Lexus dealership I had dealt with was first-class, and also, we had just had the car checked out completely. Sure have egg on my face now -- nothing like a parent convincing your kid that this is the right move to make and having it completely backfire.
I can't really say that Lexus has done anything special from a customer satisfaction standpoint. Not at all what I expected (I'm on my third RX).