I have the 2020 Limited and contacted my dealership, got my vehicle served & they told me its "normal" and part of the style. They showed me the same, brand new car at the dealership and it vibrated and they said it's normal. I contacted HQ and they said they would contact the dealership. They got back to me today and said that their specialists say this is normal and part of the 2020 RAV 4s. I've been reading about so many comments and posts regarding this for the past year. So why haven't they done anything?... this is ridiculous...The point is we should make Toyota to do something about this. We should NOT fix it our self. The dealership told me that if I modify something myself, it could make the mirror malfunction and void the warranty. The bottom line is: this is a manufacture defect and we have the warranty, Toyota should fix it for free!