I noticed that when on the highway cruising at 65 in drive it only gets to 7th gear (switched to manual to check). I started manually shifting it to 9th on the highway and have gotten 3 more mpg's on my work commute. was averaging 20 mpg, now averaging 23 mpg. Something to think about.
They may have changed something in the transmission as my 2017 shifts into 8th gear between 52 and 55 mph on a flat road surface.
2017 Trailhawk L Plus 4 bX4,Rhino exterior,Power 8 way drivers seat, Willys in windshidel,Cold Weather Group, Comfort/Convenience Group,Trailer Tow Group, 3.2 -Liter V6, Black Hood Decal , Uconnect 8.4 , Safety Tech Group, Leather Interior Group, Ventilated/Memory seat Group,Navigation. No hole in roof.
2017 KL Latitude-4 by 4 Cherry Red, V-6, Safety/Convenience group, Cold Weather Group,which includes heated front seats--love those heated seats,