# Service bulletin KC\-126

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: 10203130
- Published by NHTSA: 2021\-11\-05
- Manufacturer's number: KC\-126
- Manufacturer's date: 2021\-10\-22
- NHTSA component: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE

## NHTSA's summary

Engine Control Module \(EMS\) Software \(MSW\) Information \- November 2019; Improvement List \(Change Log\) And Explanations For Issues And Diagnostic Trouble Codes \(DTC, Fault Codes\) US17\+OBD2016 And US17\+OBD18 Emissions, Model Years 2018 And 2019

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203130-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203130-9999.pdf)

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

## Components

Engine, Engine control module

## Vehicles listed

- 2017 MACK ANTHEM \(AN\)
- 2018 to 2019 MACK ANTHEM \(AN\)
- 2017 to 2018 MACK CHU
- 2017 to 2018 MACK CXU
- 2017 to 2019 MACK GRANITE \(GR\)
- 2017 to 2019 MACK GRANITE \(GU\)
- 2017 to 2018 MACK GU
- 2017 MACK LEU
- 2017 to 2019 MACK LR
- 2017 to 2018 MACK MRU
- 2017 to 2019 MACK PINNACLE \(CHU\)
- 2017 to 2019 MACK PINNACLE \(CXU\)
- 2018 to 2019 MACK PINNACLE \(PI/PN\)
- 2017 to 2019 MACK TD
- 2019 MACK TE
- 2017 to 2019 MACK TERRAPRO \(LEU/MRU\)
- 2017 MACK TERRAPRO \(MRU\)
- 2017 to 2018 MACK TERRAPRO \(TE\)
- 2017 to 2018 MACK TITAN \(TD\)

## Other bulletins for the same vehicles and component

- [KC\-247](/bulletins/10206137.md), 2022-01-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Mack Chassis \- Diagnostic Trouble Codes \( DTC's \) P24A0 And P249F Lighting The Malfunction Indicator Lamp \( MIL \) \- US14\+OBD15, US14\+OBD16 \(Common Model Years 2016 And 2017\), US17\+OBD16 And Newer \( Common Rail Fuel System, Model Year 2018\)
- [KC\-130](/bulletins/10203132.md), 2021-11-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); FUEL SYSTEM, OTHER. Air In The Fuel System Tests, Common Rail Fuel System \- US17\+OBD16 and Newer Emissions
- [KC\-112](/bulletins/10203014.md), 2021-11-05, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. Mack Chassis \- Diagnostic Trouble Code \( DTC \) P05EB, Diagnostic And Repair Information \- US14\+OBD15 And US14\+OBD16 \(Commonly Model Years 2016 And 2017\)

JSON: [/v1/bulletins/10203130](/v1/bulletins/10203130)

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