brand new tundra squeaks/squeals sporadically with burnt brake and rubber odor

Looking for a clue here. Brand new 2021 Tundra. Randomly begins squealing in either right front or rear tire area. Faster i go, louder it gets. Sounds like brake issue but Toyota dealer took all wheels off and did several diagnostics for codes that might have indicated ABS malfunction or anything brake related. No findings. No indication of rubbing, nothing.

It stops as soon as i stop and put it in park and then go again. When it starts to do it you can hear a slight "engagement" sound as if something is being actuated into a bad position to start making the noise.

I have 160 miles on it and it has done it about 5 times now. Have recordings of it and Toyota has reviewed them and is stumped. They are calling in an "expert" of some kind to review and assess it next week.

The odor is hard to decipher. A mix of hot brakes and rubber possibly.

Thanks in advance for any ideas.