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.
SM1601
Service Bulletin/Repair Instructions
Blue Bird Troubleshooting Guides: Blue Bird announcement of the addition of troubleshooting guides for assisting in the service of the Blue Bird products. These troubleshooting guides are available on the Vantage website.
S99CP
Service Bulletin/Repair Instructions
SUBJECT REGARDING ANCHORLOK HEATED AIR DRYER, BENDIX AIR DRYER AND HEATED AIR TANK RESERVOIR DRAIN VALVES ELECTRICAL CIRCUIT REWORK. *TT
980611
Service Bulletin/Repair Instructions
SUBJECT ON REPLACING GM DASH WITH NEW BLUE BIRD DASH. *YC
S9801-98
Service Bulletin/Repair Instructions
VARIOUS INFORMATION ON ELECTRONIC INSTRUMENT PANEL AND CONTROLS. *YC