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Service bulletin 22104

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 id10213188
Published by NHTSA2022-06-03
Manufacturer's number22104
Manufacturer's date2022-05-10
NHTSA componentSERVICE BRAKES, AIR

NHTSA's summary

Certain IC RE school buses may have the ABS indicator light circuit incorrectly pinned at the relay and may have an outdated BCM calibration that could result in the ABS indicator light to stay on at all times

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

Brakes

Vehicles listed
IC BUS RESB2022

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