Many times RV owners are very surprise, & equally disappointed, [sometimes very angry] to find out that dealerships are not 'required' to service a unit
that they did not sell. No, it's not a Keystone issue - generally speaking, it's the same process commonly used in the RV industry as a whole.
As a matter of fact, some RV manufacturers now have "dealer/service statements" posted on their websites. Granted, it's not in bold print on their 'Homepage',
but it's there for the potential buyer to read.
One popular manufacturer states (in part): "dealers are independently owned and operated businesses, so priority service and scheduling is at their discretion
and is often provided to customers that purchased their unit at that dealership."
Another states (in part): "dealers are under obligation to provide warranty service for products they sell, but are not legally required to service products purchased from other dealers."
All that said... there's probably fewer headaches involved by returning to 'your' dealer for warranty work.
Terri, the Chevy co-pilot