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Service bulletin ITS61783

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 id11034102
Published by NHTSA2026-06-26
Manufacturer's numberITS61783
Manufacturer's date2026-06-11
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Instructions for uploading a program to move existing J1939 message routing from DPS instrument cluster to PVSG.

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
NEW FLYER XCELSIOR2025

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

Other bulletins for the same vehicles and component
TSIB 26-062026-05-14. Service bulletin. Bulletin to follow when replacing LV batteries on buses equipped with certain Vanner battery equalizers.