I had similar leak under the floor mat I used a plastic adhesive door sweep along the door frame.. diverts the water from the drip guard to the outside of the jeep. Saw it ob the JL forum. Easy solution and stops rain from dripping in along the gutter when door is open.
I hope Jeep didnt use the same plastic inner parts thst they used on earlier. vehicles... I had a 2007 Liberty that the power window mechanism kept breaking... windows would not stay up...
I as well grew up in Northern MN. No need for chains. Common sense wins out. Observe what everyone else does up north for winter. Enjoy! Great fishing in the Land of 10,000 Lakes!
I have a seasonal cabin bear Ely MN. I go up every winter. No need for chains.. just a good set of winter rated AT tires. As was mentioned a winter emergency kit and def engine block heater. oh, and good qaulity winter clothes, especially warm boots.