Did you end up finding out why it is idling up. Mine just started (Oct 2018 Rogue) to idle at 1100 RPMs, mainly in the mornings. After I have driven it for about 10 minutes it is fine. There is no difference in operation of the vehicle just the idle high at start of day. At end of work at end of day it starts and idles fine about 900 RPMs. It didn't do it last winter so car booked in to have a look and chat. Disregard this post I found problem. I didn't know about the idle up button on the right hand side. For some reason it had been pushed / turned on. Turned off now Hilux back to normal.
