I have the same noise on my 2016 and Toyota has had this for years. My 1997 4 Runner did it and my 2014 Tacoma did as well. All three were on the passenger side.
I had the same noise on my 1997 4 Runner, 2014 Tacoma and my 2016 Tacoma. The dealership gives me a blank look when I describe the problem like they've never heard of it before.
