Originally Posted by jfelbab
I'd walk the service manager or tech to the showroom or to of their loaners and have him listen to the operation. It will then be obvious that the noise is or is not different.
I have a similar issue with my driver seat motor which is embarrassingly noisy and it raises and lowers in pitch as it moves the seat to and from the driving position. The dealers loaners don't make that noise so they will need to address it.
I drove one of their 2013 RX350 as loaner and it did the same thing and it only had a couple of thousand km on it.
I haven't tried speaking to the Service Manager about it so I will try that first and see where it leads.