right front parking light will not turn off even with truck off?

I would start by checking the fuse on the BCM, if all fuses are okay the BCM needs to be replaced. Here is a guide that can help and the BCM location and replacement instructions in case you need it. You can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.