Is it possible you are hearing interference caused by the fan speed? Lots of people complain about that and it's easy to test. You can turn off your fan. For me I only hear it at near max speeds. I'm sure someone will chime in with better details.I have 2022 Corolla SE model and I hear a noise sound like when you switch your radio channel from one to another.
I recoded a video while driving and the noise is very clear in the video, this strange sound coming from the dashboard.
to be more specific is coming from the left Airshafts next to the driving wheel.
sometimes this sound is very loud sometimes not, also sometimes happened every day and sometimes once every few days.
the car is bran new with only 5k miles and I took 03 times to 2 different dealers and both dealers (Toyota North Brunswick and Toyota Dayton, the Toyota dealer in Dayton had the chance to inspect it twice and they said they don't hear any noise
they are saying this just to cover themselves however while I was on the phone with one of the staff working for the corporation, she heard the Noice, but she doesn't know what is this noise?
now the whole situation went to a lemon vehicle law. And I'm waiting on one of the higher ups to take a decision.
but my advice to anyone willing to buy this vehicle is think twice before buying.