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
Service Bulletin/Repair Instructions
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
344
Service Bulletin/Repair Instructions
NEWMAR CORPORATION: ALL MOTORIZED EQUIPPED WITH NORCOLD REFER. CHANGE COOLING UNIT HEATING ELEMENT VENDORS; THERE IS A NEW STYLE ELECTRIC HEATING ELEMENT THAT MUST BE USED IN CERTAIN NEW COOLING UNITS. *PE
TSB-340
Service Bulletin/Repair Instructions
NEWMAR: POPPING OR GRINDING NOISES IN THE FRONT END WHEN "IFS" SUSPENSION IS ARTICULATING. *PE
338
Service Bulletin/Repair Instructions
[ENGINE BRAKE] LIGHT FUNCTION WAS PROGRAMMED (DISABLED) IN [ENGINE PROGRAMMING PARAMETERS]. *NJ