Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSB 20-08
Service Bulletin/Repair Instructions
The overhead cabinets located above the driver and front passenger seats may become loose during travel. This Technical Service Bulletin will be gathering information regarding this possible concern and will provide guidance on how to ensure the overhead cabinets are properly secured in the motorhome.
LTR 120519
Service Bulletin/Repair Instructions
This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.
LTR 110317
Service Bulletin/Repair Instructions
This letter stated that there was one (1) Service Notification issued for the month of October, 2017.