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Service bulletin KC-771

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 id10204024
Published by NHTSA2021-12-07
Manufacturer's numberKC-771
Manufacturer's date2021-11-08
NHTSA componentENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL

NHTSA's summary

(Back Office Only) Mack Chassis - Diagnosing The Aftertreatment Control Module DTCs P202D, P208E, P20E8 - OBD13 (Commonly Model Year 2014); Newer Chassis AFTER Reviewing Other Solutions

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

Engine, Fuel system

Trouble codes named

P202D, P208E, P20E8

Vehicles listed
MACK MACK

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