Well looks like I've got myself subtle leak. It's not dripping on the concrete and I only noticed when I recently did an oil change. Oil is accumulating on the bottom of transfer case and transmission. I can't tell where it's coming from, but curious if any of you have seen this before on this year/make/model? I took off a little panel in the second pic below to try and see if I could find the leak source, but no luck. I've cleaned it all off with brake clean twice and it's come back twice. I changed the transfer gear oil about 25,000 miles ago. No leaks from any drain or fill plug areas. I'm taking it to Toyota next month for an ATF fluid change anyway so I suppose they'll be repairing this too. Would be nice to know the leak source though.
2017 Toyota Highlander XLE AWD, 3.5L 2GR-FKS, 82,000 miles
2017 Toyota Highlander XLE AWD, 3.5L 2GR-FKS, 82,000 miles