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.
TSB-372
NEWMAR CORP.: FAILED AMSAFE SEAT BELTS BEING RETURNED TO NEWMAR FOR WARRANTY COVERAGE. PLEASE NOTE THAT WHEN CHANGING OUT WARRANTY AMSAFE SEAT BELTS, BOTH HARNESS STRAP WITH CLIP AND BUCKLE PORTION WILL NEED TO BE RETURNED. ALL MOTORIZED MODELS AND ALL MODEL YEARS ARE INCLUDED. *PE
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.