2016 honda accord 2.4l.....130.5k, 8.5 months and 5k miles on oil.
In and out: 2.5 QTS of Castrol Edge 10w30 and 2 QTS of Castrol Edge 0w16, Bosch Filter.
2017 4runner, 95k, 2,5 months and 5k miles on oil.
In and Out: 3.5 QTS of Castrol Edge 10w30 and 3 QTS of Castrol Edge 0w16, Wix filter. Also new air and cabin filters.
My guess would be a bad damper motor , it's directing more air to the freezer side, again it's just a guess.....tech support or technician should have a pretty good idea of what some of the common problems are for that particular model.
I would also question the accuracy of your K1 thermometer...
2017 Toyota 4runner, 90k on engine, 8 months 5k miles on oil and filter.
Out and In Oil: 3.5 qts of Castrol Edge 10w30 and 3 qts of Castrol Edge 0w16.
Filter: Denso out, wix In.