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Service bulletin KC-294

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 id10206987
Published by NHTSA2022-02-04
Manufacturer's numberKC-294
Manufacturer's date2022-01-04
NHTSA componentSTRUCTURE

NHTSA's summary

Mack Chassis - Granite 7 Series (GU, GU7, M058, M746, M748) - Cracks, Breakage Or Fatigue Found Around The Hood Guide - Vehicles Built From Feb 2010 Through 20 Nov 2017

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

Body and frame

Vehicles listed
MACK GRANITE (GU)2010 to 2016
MACK GRANITE (GU)2017 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
CBR 70-8 2025052025-06-02. Service bulletin. Lack of lateral structural hood support.
CBR-2016 2024012024-02-02. Service bulletin. CBR: Frame Or Cab Lean
M-700-0012023-05-03. Service bulletin. TSB: Frame Flange Relief Cut-out Templates with 105 millimeter Frame Flanges
KC-702021-12-07. Service bulletin. Mack Chassis - Model GR/GU - Hood Warpage
KC-702021-08-02. Service bulletin. Mack Chassis - Model GR/GU - Hood Warpage
KC-702021-04-05. Service bulletin. Mack Chassis - Model GR/GU - Hood Warpage
K311264412020-06-03. Service bulletin. Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions - US17+OBD16 Emissions And Newer
K713130152019-02-19. Service bulletin. Hood Insulation Separating From Hood, Insulation Installation Instructions