# Service bulletin PI0843

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: 10083260
- Published by NHTSA: 2016\-10\-21
- Manufacturer's number: PI0843
- Manufacturer's date: 2014\-04\-01
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE

## NHTSA's summary

ON CERTAIN MACK COMPRESSED NATURAL GAS \(CNG\) AND LIQUID NATURAL GAS \( LNG\) MODELS, BUILT BETWEEN 07/01/2013 AND 11/08/2013, THERE IS AN INCORRECT PARAMETER SETTING FOR VEHICLE SPEED SOURCE \(AZI\). THIS COULD CAUSE THE PARK BRAKE ALERT FUNCTION TO ONLY WORK ONCE, INTER WHEEL DIFF LOCK \(IWDL\) TO NOT FUNCTION COMPLETELY, SPEEDOMETER TO NOT FUNCTION PROPERLY AND ANY DATA \(FUEL USED, MILES TRAVELED, AVG. MPH, ETC.\) REQUESTED FROM THE VECU TO BE INCORRECT. THIS IS DUE TO A PROGRAMMING ISSUE AT THE MANUFACTURING FACILITY.

## 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

Brakes, Electrical system, Parking brake, Software

## Vehicles listed

- 2014 MACK CXU

JSON: [/v1/bulletins/10083260](/v1/bulletins/10083260)

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