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.
511640B
Service Bulletin/Repair Instructions
According to General Motors Recall 23V247: "These vehicles are equipped with an unused circuit that a final-stage manufacturer may elect to use to install an optional rear HVAC system. If the final-stage manufacturer leaves the circuit's connectors or cut wires unsealed, exposure to moisture or contamination may, over time, cause corrosion. This could result in high current draw through the circuit at the vehicles' lower left side B-pillar. Unintended release of excessive heat from the circuit may pose a risk of a vehicle fire and increase the risk of injury."
ATF (E-series) C
Service Bulletin/Repair Instructions
To repair cab exterior sheetmetal crack, Driver Side.
ATF (E-series) S
Service Bulletin/Repair Instructions
To reinforce the second unit body floor outriggers due to cracks in the outriggers.
2017-0018
Service Bulletin/Repair Instructions
This is a Service Bulletin to repair water leaks at the wheelchair door and repair cracks in the wheelchair door frame.
2011-0303_V1
Service Bulletin/Repair Instructions
THIS TECHNICAL SERVICE BULLETIN (TSB) OUTLINES THE REPAIR/REPLACEMENT OF THE ROOF INTERIOR PLY-LAYER OF VERTICEL MATERIAL DUE TO WATER LEAKS, AND THE VERTICELL PLY-LAYER BECOMES DAMAGED. THIS TECHNICAL SERVICE BULLETIN (TSB) OUTLINES THE REPAIR/REPLACEMENT OF THE ROOF INTERIOR PLY-LAYER OF VERTICEL MATERIAL DUE TO WATER LEAKS, AND THE VERTICELL PLY-LAYER BECOMES DAMAGED.