Just bought our new 2016 SFS and when I park in the garage overnight, and go in the next day, I can smell the odor of gear oil, like there must be a vent tube off the diff or transfer case. I had a similar issue with a Cherokee and a vent line was disconnected. Anything like that on the Santa Fe? I only have about 900 kms. on the vehicle. Have no visible leaks on the floor.