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Service bulletin MOD/94MS

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 id39175
Published by NHTSA1995-03-17
Manufacturer's numberMOD/94MS
Manufacturer's date1995-01-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's summary

CERTAIN DETROIT DIESEL DDEC II FIRE TRUCK ENGINES WILL REQUIRE REPLACEMENT OF THE EEPROM WITH A LATER VERSION SOFTWARE EEPROM. *TW

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, Ignition

Vehicles listed
DETROIT DETROIT

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