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.
PIB 494
Service Bulletin/Repair Instructions
If the coach's HWH leveling system has intermittent issues when operating, check for corrosion or loose mounting bolts. Torque the mounting bolts (if needed) to 30 ft. pounds. A ground cable may also be installed to improve the overall grounding of the HWH pump assembly.
TSB 439
Service Bulletin/Repair Instructions
NEWMAR CORPORATION HAS DECIDED THAT A DEFECT RELATING TO MOTOR VEHICLE SAFETY EXISTS IN SPECIFIC MOTOR HOMES BUILT ON SPARTAN CHASSIS. THIS RECALL IS THE RESULT OF INFORMATION PROVIDED TO NEWMAR BY SPARTAN MOTORS. NHTSA # 15V 829 TC # 2015-587 THE STEERING GEAR MOUNTING BRACKET MAY CRACK AND BREAK, RESULTING IN A LOSS OF STEERING CONTROL, INCREASING THE RISK OF A CRASH CAUSING INJURY AND/OR DAMAGE TO PROPERTY.
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