# Service bulletin KC\-2158 Rev 6

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: 10238786
- Published by NHTSA: 2023\-07\-06
- Manufacturer's number: KC\-2158 Rev 6
- Manufacturer's date: 2023\-06\-05
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

## NHTSA's summary

CBR \- Mack Selective Catalytic Reduction \(SCR\) Muffler Troubleshooting Guide \- US10\+OBD13 And Newer Emissions

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10238786-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10238786-9999.pdf)

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

## Components

Electrical system, Engine, Exhaust and emissions

## Vehicles listed

- 2016 to 2017 MACK ANTHEM \(AN\)
- 2018 to 2024 MACK ANTHEM \(AN\)
- 2015 to 2016 MACK GRANITE \(GR\)
- 2017 to 2024 MACK GRANITE \(GR\)
- 2013 to 2014 MACK LR
- 2015 to 2024 MACK LR
- 2018 to 2024 MACK PINNACLE \(PI/PN\)
- 2019 to 2021 MACK TE
- 2017 to 2018 MACK TERRAPRO \(TE\)
- 2022 to 2024 MACK TERRAPRO \(TE\)

## Recalls for the same vehicles and component

- [26V139000](/recalls/nhtsa/26V139000.md), 2026-03-11: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE
- [24V792000](/recalls/nhtsa/24V792000.md), 2024-10-23: ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [2024194](/recalls/tc/2024194.md), 2024-03-27: Electrical
- [24V232000](/recalls/nhtsa/24V232000.md), 2024-03-27: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
- [2023630](/recalls/tc/2023630.md), 2023-11-22: Electrical
- [2023588](/recalls/tc/2023588.md), 2023-10-31: Engine
- [23V731000](/recalls/nhtsa/23V731000.md), 2023-10-31: ENGINE
- [23V310000](/recalls/nhtsa/23V310000.md), 2023-05-02: ELECTRICAL SYSTEM:HORN
- [2023021](/recalls/tc/2023021.md), 2023-01-24: Electrical
- [18V152000](/recalls/nhtsa/18V152000.md), 2018-03-06: INTERIOR LIGHTING; VISIBILITY:WINDSHIELD WIPER/WASHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## Other bulletins for the same vehicles and component

- [TSB M\-913\-001 202609](/bulletins/11037730.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Parker engine\-mounted hydraulic pump service bulletin.
- [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 \(SCR\).
- [CBR\-2592\-1 202606](/bulletins/11034135.md), 2026-06-29, Service bulletin: ENGINE. The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.
- [M0039 032026](/bulletins/11030590.md), 2026-04-02, Emissions: ENGINE. Emissions \- EC0039 MST21 Failure to Detect P20EE \- AN, CHU.
- [CBR 2712\-7 032026](/bulletins/11030579.md), 2026-04-02, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. CBR \- No Start Condition After Over the Air Programing.
- [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 2128\-7 202601](/bulletins/11028033.md), 2026-02-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. CBR \- Engine Control Module \(EMS\) Software Information \- Improvement List \(Change Log\), US21\+OBD2021 Emissions ONLY

JSON: [/v1/bulletins/10238786](/v1/bulletins/10238786)

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