My wife's started doing this a while back and she only yesterday said something. Initially it was just to the right, now it's both. She said, "it sounds like the cv joints"... Damn proud of her.
Anyway called dealer who said this is a known issue and they would take care of it. That's what made me look here to see how pervasive it really is. To say I'm disappointed would be an understatement. I know first model years are always a bit of a growing pain thing, but it really seems like Toyota is not running with the same QA on which I grew up. My 07 tundra was also first model year. As way my 00 tundra. No issues then, or now with them.