# Service bulletin PI\-0839

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: 10055180
- Published by NHTSA: 2014\-04\-19
- Manufacturer's number: PI\-0839
- Manufacturer's date: 2014\-02\-01
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

MACK TRUCK: TO ADDRESS PISTON COOLING JET \(PCJ\) DIAGNOSTIC FAULT, REGENERATIONS IN COLD CLIMATES \(\-20C\), THE TRANSMISSION ELECTRONIC CONTROL UNIT \(TECU\), ENGINE CONTROL MODULE \(ECM\) AND AFTERTREATMENT CONTROL MODULE \(ACM\) HAVE UPDATED SOFTWARE ENHANCEMENT THAT ARE AVAILABLE. MODEL CHU, CXU. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Software

## Vehicles listed

- 2010 MACK CHU
- 2010 MACK CXU
- 2011 to 2012 MACK PINNACLE \(CHU\)
- 2011 to 2012 MACK PINNACLE \(CXU\)

JSON: [/v1/bulletins/10055180](/v1/bulletins/10055180)

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