[MENTION=151261]BlueRidge77[/MENTION] -- did you get this resolved?
Reviving this thread because my 2017 TRDP developed this issue Saturday afternoon with ~3,000 miles on it whereas it didn't do it before. To be clear, I'm not referring to the "whoosh" noise the brakes make--I've had that since day one and apparently that's normal.
A few things to note:
1) I test drove a 2016 Limited with ~300 miles on it that had this issue and it was very pronounced to the point where I thought the brakes were defective.
2) I test drove a different 2016 Limited with 180 miles that did not have this issue at all.
3) My TRDP did not have this issue at all until this past weekend (~3,000 miles on the odo)
I was up in the mountains this past weekend. Parked at the ski resort on Saturday morning and left around 3pm. On the drive in there were no issues. As soon as I started it with my foot on the brake pedal when leaving at 3pm, I felt that weird vibration. It has continued to do it ever since and happens in two scenarios:
1) When I'm sitting there holding the brake pedal at a stop it will occasionally do it at random.
2) Any time I lightly apply the brakes, regardless of my speed, it will vibrate. It doesn't seem like an issue with the calipers/pads/rotors, but rather something inside the hydraulic braking system.
I don't think this is normal. I'm going to take it to the dealer this week and see if they can diagnose/fix it.