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Service bulletin TSB 493

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10121940
Published by NHTSA2017-11-03
Manufacturer's numberTSB 493
Manufacturer's date2017-09-21
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE

NHTSA's summary

Daimler Trucks North America has issued field service campaign SF543A. In response, Newmar is publishing TSB 493. Issue: On specific vehicles equipped with Stoneridge light bar control units (LBCU), the instrument panel odometer value may reset and no longer match the engine ECU odometer value.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Instrument cluster

Vehicles listed
NEWMAR DUTCH STAR2015 to 2018
NEWMAR ESSEX2015 to 2018
NEWMAR LONDON AIRE2015 to 2018
NEWMAR MOUNTAIN AIRE2015 to 2018
NEWMAR VENTANA2015 to 2018
NEWMAR VENTANA LE2015 to 2016
NEWMAR VENTANA VL2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.