# Service bulletin KC\-678

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: 10213662
- Published by NHTSA: 2022\-06\-07
- Manufacturer's number: KC\-678
- Manufacturer's date: 2022\-05\-19
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

Diagnostic Trouble Codes \( DTC \) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp \( MIL \) \- US14\+OBD16, US17\+OBD16, And US17\+OBD18 Emissions, Model Years 2017 To 2019

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213662-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213662-9999.pdf)

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

## Components

Electrical system, Engine

## Trouble codes named

P2080, P2084, P242B

## Vehicles listed

- 2017 MACK ANTHEM \(AN\)
- 2018 to 2019 MACK ANTHEM \(AN\)
- 2017 to 2018 MACK CHU
- 2017 to 2018 MACK CXU
- 2018 to 2019 MACK GRANITE \(GR\)
- 2017 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 to 2019 MACK TERRAPRO \(MRU\)
- 2017 to 2018 MACK TERRAPRO \(TE\)
- 2017 to 2018 MACK TITAN \(TD\)

## Recalls for the same vehicles and component

- [18V152000](/recalls/nhtsa/18V152000.md), 2018-03-06: INTERIOR LIGHTING; VISIBILITY:WINDSHIELD WIPER/WASHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM
- [2017216](/recalls/tc/2017216.md), 2017-04-19: Electrical
- [17V261000](/recalls/nhtsa/17V261000.md), 2017-04-18: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

## Other bulletins for the same vehicles and component

- [CBR 159 202608](/bulletins/11036580.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM. Mack Trucks Equipped With A Cummins Engine \- Engine Preheat Icon Does Not Illuminate In The Instrument Cluster \(IC\) During Engine Pre\-heat \(Intake Air Heater\) Operation \- Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer
- [M0304 EC0033 202606](/bulletins/11034136.md), 2026-06-29, Emissions: ENGINE. Mack Trucks has determined that certain vehicles equipped with a model year \(“MY”\) 2017\-2018 MP8 Turbo Compound \(TC\) engine may not meet California and Federal Regulations \(CARB\). This Recall is for updated software that will reduce the amount of time necessary for the system to operate in a cold engine warm\-up strategy and provide health monitoring of the Selective Catalyst Reduction \(SCR\).
- [M0039 032026](/bulletins/11030590.md), 2026-04-02, Emissions: ENGINE. Emissions \- EC0039 MST21 Failure to Detect P20EE \- AN, CHU.
- [M0302 022026](/bulletins/11029451.md), 2026-03-03, Emissions: ENGINE. Emissions \- Mack Trucks has determined that certain vehicles equipped with a model year \(“MY”\) 2017\-2018 MP7 engine may not meet California and Federal Regulations \(CARB\).
- [CBR 126 022026](/bulletins/11029445.md), 2026-03-03, Service bulletin: ELECTRICAL SYSTEM. CBR \- The purpose of this solution is to give information on Engine Control Module \(EMS\) Software content.
- [CBR 820\-9 202601](/bulletins/11028051.md), 2026-02-03, Service bulletin: ENGINE; VEHICLE SPEED CONTROL. CBR \- Mack Chassis \- Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer.
- [CBR 2107\-22 202601](/bulletins/11028032.md), 2026-02-02, Service bulletin: ENGINE. CBR \- Mack DEF Level \(UQLS\) Sensor Troubleshooting Guide \- US17\+OBD16 Emissions to US22\+OBD2023 \(DOES NOT APPLY TO AN\(4\) and PR\(4\)\).
- [CBR 199 202512](/bulletins/11027007.md), 2026-01-05, Service bulletin: ENGINE. Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
- [CBR 2171\-11 202511](/bulletins/11026025.md), 2025-12-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. CBR \- Mack Temperature Sensor Troubleshooting Guide
- [CBR 199\-6 202511](/bulletins/11026021.md), 2025-12-03, Service bulletin: ENGINE. CBR \- 13 Liter Engines ONLY \- Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing.

JSON: [/v1/bulletins/10213662](/v1/bulletins/10213662)

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