... always get my callipers greased at an independent - who also remove all wheels during a service.
I think Lexus generally just do a visual check - wheels on?
And it IS the door?
I hear rattles sometimes, but my directional hearing is often woefully wrong?
A rattle in the front turned out to be the sunroof cover...
As in ... if you hear the compressor coming on a lot when driving...
There's an issue.
Can you see the car when it's not been warmed up, to check it's sitting straight?
Have a good look underneath.
Check how it sits and if the compressor comes on when driving.
I love my SEL.
But I conclude age versus mileage, newer is better...