# Service bulletin FSB 364\-037

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: 10083525
- Published by NHTSA: 2016\-10\-25
- Manufacturer's number: FSB 364\-037
- Manufacturer's date: 2014\-09\-03
- NHTSA component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

VEHICLE ELECTRONIC CONTROL UNIT \(VECU\), REPROGRAMMING FIFTH WHEEL SLIDE. ON CERTAIN MACK MODELS, BUILT BETWEEN 09/04/2010 AND 08/15/2014, WITH AN AIR SLIDE 5TH WHEEL, THERE WILL BE NO WARNING WHEN THE OUTPUT FROM THE VECU GETS SHORTED TO GND. THIS CAN CAUSE THE 5TH WHEEL TO SLIDE WITHOUT ACTIVATING THE 5TH WHEEL SLIDE SWITCH. THIS IS DUE TO THE FACT THAT THE SW IN THE VECU AND INSTRUMENT CLUSTER DID NOT SUPPORT THE FAULT MONITORING FOR THIS FUNCTION. PERFORMING THE BELOW PROCEDURE WILL ACTIVATE THE FAULT MONITORING AND WARNING.

## 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, Instrument cluster, Software

## Vehicles listed

- 2011 to 2015 MACK CHU
- 2011 to 2015 MACK CXU
- 2011 to 2015 MACK GU
- 2011 to 2015 MACK TD

JSON: [/v1/bulletins/10083525](/v1/bulletins/10083525)

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