Vehicle report
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.
30407
NATIONAL RV INC. - DOLPHINS BUILT FROM JAN. 2006 TO AUG. 2007 ARE NOT EQUIPPED WITH REAR SIDE MARKER LIGHT AND REFLECTOR INSTALLED PER FMVSS 108. FMVSS 108 REQUIRES ONE MARKER LIGHT AND REFLECTOR ON EACH SIDE OF VEHICLES AT THE REAR. *NJ
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.