# Service bulletin KC\-70

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.

- Type: Service bulletin
- NHTSA id: 10199709
- Published by NHTSA: 2021\-08\-02
- Manufacturer's number: KC\-70
- Manufacturer's date: 2021\-07\-30
- NHTSA component: STRUCTURE

## NHTSA's summary

Mack Chassis \- Model GR/GU \- Hood Warpage

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10199709-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10199709-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame

## Vehicles listed

- 2016 MACK GRANITE \(GR\)
- 2017 to 2022 MACK GRANITE \(GR\)
- 2007 to 2016 MACK GRANITE \(GU\)
- 2017 to 2022 MACK GRANITE \(GU\)

## Recalls for the same vehicles and component

- [2020551](/recalls/tc/2020551.md), 2020-11-12: Structure

## Other bulletins for the same vehicles and component

- [CBR 2575\-1 202604](/bulletins/11032094.md), 2026-05-05, Service bulletin: STRUCTURE:BODY; UNKNOWN OR OTHER. CBR \- Mack Chassis \- Dash Panel Cracking at Mounting to BIW.
- [CBR 2432\-2 202601](/bulletins/11028041.md), 2026-02-03, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER. CBR \- Mack Chassis \- AN And GR Models \- Door Glass Shattering.
- [CBR 70\-8 202505](/bulletins/11018803.md), 2025-06-02, Service bulletin: STRUCTURE:BODY. Lack of lateral structural hood support.
- [CBR\-2384 202407](/bulletins/11005412.md), 2024-08-01, Service bulletin: STRUCTURE:BODY. CBR: Mack Chassis \- Day Cab Glass Breakage
- [CBR\-2384 202406](/bulletins/11003043.md), 2024-07-03, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER; UNKNOWN OR OTHER. CBR \- Mack Chassis \- Day Cab Glass Breakage
- [CBR\-2016 202401](/bulletins/10249551.md), 2024-02-02, Service bulletin: STRUCTURE; SUSPENSION. CBR: Frame Or Cab Lean
- [M0230\-Ver2](/bulletins/10237297.md), 2023-06-05, Service bulletin: ENGINE AND ENGINE COOLING; STRUCTURE. Emission Campaign: Vehicle Emission Label
- [M\-700\-001](/bulletins/10235488.md), 2023-05-03, Service bulletin: STRUCTURE. TSB: Frame Flange Relief Cut\-out Templates with 105 millimeter Frame Flanges
- [KC\-294](/bulletins/10206987.md), 2022-02-04, Service bulletin: STRUCTURE. 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
- [KC\-70](/bulletins/10203991.md), 2021-12-07, Service bulletin: STRUCTURE:BODY:HOOD; STRUCTURE. Mack Chassis \- Model GR/GU \- Hood Warpage

JSON: [/v1/bulletins/10199709](/v1/bulletins/10199709)

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