Had a similar problem. Had a coffee box with cups, instant coffee and coffee mate container. All set and ready to go. For whatever reason wife put a citronella candle in the box.
Threw the whole thing away. Smell made me sick.
We had the same camper pulled by a 2008 Escape.
Same vehicle, pulling in lower end of the mountains here was a white knuckle experience.
Front wheel drive doesn't get much traction up steep hills with a trailer on the back.
There is a reason it does not have a tow package. It is the tail wagging...