I was surprised the amount of debris under the cargo rails on my 2015. If any of you peeps out there have these rails and haven't removed then to clean under..... it might be a good idea. One screw under the round door to the rear. You will need a plastic pry to open it. The remove the T30 screw. Slide it back and up and off. As you can see the roof is like glass. I was shocked to see this.....