Andy -
I think if you were to comb through all of the posts regarding cracked and/or fading decals, you would find that Keystone's response has been inconsistent. Some members whose dealers submitted a claim that is outside the warranty period have had success and their decals replaced. Others have not and their claim has been denied since the warranty had expired.
It seems that it is a "bit of a crapshoot" as to whether or not the claim will be approved. There are several factors that appear to affect the outcome - some of which are:
1) the amount of time the unit has been out of warranty;
2) the dealership and their relationship with Keystone;
3) the dealership and their relationship with the customer.
4) to what extent is your dealership willing to "go to bat for you"?
If it looks like you won't be having any success with the dealer or Keystone (or both) it might be better in the long run if you were to take care of the problem yourself. Some people have "solved" the problem by simply removing the decal and not trying to paint or apply a new one. Others have had the cap repainted while others have purchased decals and applied the new ones.
Try searching out ebay, Amazon or visit
www.trekwood.com (not cheap BTW) for Keystone decals.
Good luck in solving your decal problem and keep us informed as to how you make out.