I have 2010 Silverado LT with bed rails. I’d like to remove them to attach a rack to carry a canoe. At the end of the rails there are black caps with holes in them which I assume is the start of taking them off…but I can find, or even see, what’s inside. I’ve tried everything from a flat screwdriver to various torx heads. Any ideas?

Can anyone tell me how I can remove these bed rails…please!