2020 Lexus RX350L Buzzing Noise

Went to the garage and heard a loud buzzing noise coming from my new SUV that only has 250 miles. Upon searching online, people have been experiencing the same thing when the car is parked for about 5 hours from the last time it was used. They also said it's something either with the gas vapor pump or a fuel evaporation leakage check. I'll be contacting the Lexus dealership tomorrow to verify what this noise was. Prior to this, the buzzing noise was way louder. I could also upload that video to compare the noise level.

[@lexusmark437]

I'm hearing it on my 2017 Lexus RX350 and it also does it as I drive off after any stop.

[@sara1haider]

Hi
I heard it in my 2017 Lexus RX 350, and is the first time in 4 years.

[@netman88]

It's the EVAP fan doing it's job. It's normal.

[@debbybolte4932]

Mine is sitting in the garage no key near it and making that same noise. What did you ever find out about it???? I can't imagine why a car not turned on, not running why would it make a hummimg noise???

[@kevinqn3221]

@@debbybolte4932 I had same problem with my 2019 RX. I call the dealer, they said it’s normal so no worries.

[@agzVILLANUEVA]

Thank you for sharing