WenmarOpen by Wenmar Pro

Service bulletin TSB-54-030-TBB

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11036682
Published by NHTSA2026-09-02
Manufacturer's numberTSB-54-030-TBB
Manufacturer's date2026-08-28
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Technical Service Bulletin for Vehicle Interface Controller (VIC) Software Update

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
THOMAS BUILT BUSES SAF-T-LINER C2 JOULEY2020 to 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.