Wunko

We have a 2017 IS300 AWD which we bought in November. It has less than 1000 miles on it.

I'm sitting in the driver seat. The car is on idling but it is stopped (like at a stop light or parked). There is some "wind" noise coming from the rear left inside the car cabin. It sounds as if the rear left window was not shut all the way or the rear left door was not shut all the way but I've checked those.

I cannot hear it very well when I sit in the back left seat but you can hear it much better if you sit in the driver seat. I don't hear anything coming from the rear right side.

Has anyone experienced this noise?

Raghza

Perhaps the seatbelt regulator?
It's right beside your ear and it may produce some quite strange sounds sometimes

Will31894

I have the same noise but driving at highway speeds. I determined its the clear film on the mirrors (I've closed the mirror while driving and the noise went away instantly), was it a windy day?

Wunko

Thank you both for the replies. It turns out the noise was coming from the ventilated seats being left on from another family member who used the car during the weekend. I had no idea it was on and no wonder it sounded like it was coming from the back left of the cabin. This is the first car we've owned with ventilated seats (my 2011 IS doesn't have these). We turned it off and the noise stopped.