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Service bulletin TSB 453

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 id10086585
Published by NHTSA2016-12-19
Manufacturer's numberTSB 453
Manufacturer's date2016-07-07
NHTSA componentSTEERING

NHTSA's summary

NEWMAR CORPORATION HAS DECIDED THAT A DEFECT RELATING TO MOTOR VEHICLE SAFETY EXISTS IN SPECIFIC MOTORHOMES BUILT ON FREIGHTLINER CHASSIS. THIS RECALL IS THE RESULT OF INFORMATION PROVIDED TO NEWMAR BY DAIMLER TRUCKS NORTH AMERICA. NHTSA #16V 280, TC# 2016-304 ON CERTAIN MOTORHOMES BUILT ON FREIGHTLINER CHASSIS, THE POWER STEERING FLUID TEMPERATURE MAY EXCEED THE HOSE MATERIAL RATING ON CERTAIN REAR ENGINE CHASSIS BUILT WITH SPECIFIC 18K AND 20K FRONT AXLES USED IN MOTORHOMES APPLICATIONS. THE FAILURE MODE ON THESE SYSTEMS MAY RESULT IN LOSS OF POWER STEERING DURING LOW-SPEED DRIVING CONDITIONS. SUDDEN LOSS OF STEERING ASSIST ON THIS VEHICLE WITHOUT WARNING, INCREASING THE RISK OF A CRASH CAUSING INJURY AND/OR PROPERTY DAMAGE.

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

Steering

Vehicles listed
NEWMAR ESSEX2014 to 2015
NEWMAR LONDON AIRE2015
NEWMAR MOUNTAIN AIRE2015

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