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Service bulletin SB 3090

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 id10119749
Published by NHTSA2017-10-21
Manufacturer's numberSB 3090
Manufacturer's date2015-11-16
NHTSA componentPARKING BRAKE

NHTSA's summary

This Service Bulletin informs customers of the procedure which outlines the operational checks for the primary and secondary brake system and the park brake automatic actuation operation on MCI J4500 model coaches equipped with ZF axles and ADB22X disc brakes.

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, Parking brake

Vehicles listed
MOTOR COACH MC5

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