WenmarOpen by Wenmar Pro

Service bulletin DD-FA-14W1

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 id10056793
Published by NHTSA2015-02-20
Manufacturer's numberDD-FA-14W1
Manufacturer's date2015-02-20
ReplacesDD-FA-14W1-A
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

DETROIT: SOME ENGINES, THAT WAS SHIPPED WILL NEED TO BE REPROGRAMMED WITH FUEL MAPS AND SOFTWARE, TO PREVENT FAULT CODES AND PERFORMANCE ISSUES. *PE UPDATED 2/24/15. *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, Software

Vehicles listed
DETROIT DETROIT

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