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Service bulletin SB-334

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 id10032526
Published by NHTSA2010-04-09
Manufacturer's numberSB-334
Manufacturer's date2009-10-06
NHTSA componentELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

MOTOR COACH INC.: UNABLE TO PERFORM STATIONARY REGENERATION DUE TO CORROSION ON THE REGENERATION SWITCH CONTACTS. CONTACTS NOT COATED. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Engine, Wiring and fuses

Vehicles listed
MCI D SERIES
MCI E SERIES
MCI J SERIES

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