demech23

Almost looks like the trim piece that covers the two bolts on the door panel by the door grab handle!

I guess it comes from what we have learned and experienced from working at dealerships...

Take it back to your dealership and ask the service department to do a test drive with either an advisor or tech as you are driving it so you can duplicate your concern. Let service from there figure out what is wrong, in general service doesn't like it when people recommend what they believe is wrong eventhough you drive your truck every day and know how it acts. Its under warranty so let them diag it and fix.