After months of researching the long standing problems on my wifes 2004 Explorer I subscribed to a premium service allowing me to view all if not most of the TSB's on this particular vehicle. It also allows me access to service information that a lot if independant shops maintain. Anyway, what I'm getting at, is if a customer walked into the dealership with a printout of all or some of the TSB's outlining the problem on their vehicle the service manager may be a little bit more open minded about looking for options as far as helping the customer.
At least have them explain the ones related to the customers complaint. I do all or most of the repairs on both of our Explorers and have found these very informational and gives me an edge when I call the dealership with issues I want explanations on. There are a lot of resources in finding these TSB's and contrary to belief Auto Techs aren't the only ones allowed to view.