So for now, we can safely conclude that: 3T and 4T get blue stitching & blue vent accents with black interior only 3 and 4 gets turquoise stitching and turquoise vent accents with moonstone interior (fabric or SofTex). Harvest beige and black do not have contrast stitching.
Im kinda reviving this thread with my question. Found a used 2016 Prius which I almost bought ( darn wish I had) that had the turquoise accents. I have not been able to find another since and wondered if she had customized it. Found this thread, thank you! She also had this steering wheel which I believe was custom made. Any one know who sells/makes this particular one by chance? Photo attatched. Thanks!
The steering wheel cover is custom but the 2016-2018 Prius with the Moonstone interior (black/white) did have turquoise contrast stitching in the seats and turquoise vent trim accents.
Yes I realized that after much investigation ( and finding this thread : ) I am hoping someone knows who made the custom steering wheel you see in the photo I provided? Also do all the gen 4 models under your description above have the turqoise accents? 2016, 2017,2018...
Hopefully someone recognises that cover and can tell you where to purchase it. All 2016-2018 with the Moonstone interior. With the Black interior, there's blue contrast stitching on Touring models, otherwise no contrast stitching on non-Touring models with the black interior. No contrast stitching on Harvest Beige interior either.
Blue stitching here... And I'm sure everyone realizes that the blue stitching, along with the blue accents on the front and rear Toyota symbols, is the Japanese "ecological" color, whereas in the US it's green.
My 2016 4touring in sea glass pearl has the blue stitching and accents, but not the custom steering wheel trim.