New TN User
Join Date: May 2019
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So I took the car in for its 50k mile service today, and asked the dealer (Toyota of Seattle) to have a look at the noise. They called and told me a bunch of pebbles had gotten between a few of the underbody aero covers and nearby components, and were causing the buzzing. When I picked the car up, there was still a bit of resonance at the problem engine speed, but all buzzing/vibration sounds were gone. The resonance (without buzzing) is noticeable if you are looking for it but really isn't objectionable at all.
Look out for pebbles and other debris!
2016 Highlander Hybrid Limited Platinum, silver/black
2019 Chevy Bolt Premier, dark gray/black+white
1995 Acura Legend Sedan L, green/tan, 200K+ mi
Last edited by dal20402; 06-27-2019 at 11:08 PM.