The dealer will know, using your VIN, what work has been done, and what needs to be done. Note, with TSB's....just because one exists, does NOT mean you are entitled to the fix. They are only used to remedy cars/trucks that are having problems as noted. The problems may be common, but are NOT uniform and affect every vehicle....
Also, you have an I6 in your truck, not a V6
Welcome to the group!!!