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Service bulletin RSB 456

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 id10084021
Published by NHTSA2016-11-07
Manufacturer's numberRSB 456
Manufacturer's date2016-08-18
NHTSA componentVEHICLE SPEED CONTROL; SERVICE BRAKES

NHTSA's summary

DAIMLER TRUCKS NORTH AMERICA HAS DECIDED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN SPECIFIC MOTOR HOMES BUILT ON FREIGHTLINER CHASSIS AND IN RESPONSE NEWMAR IS PUBLISHING RECALL NHTSA# 16V 478 TC# 2016-325. ON CERTAIN MOTORHOMES, WHEN THE THROTTLE PEDAL IS RELEASED, THE ASSOCIATED PEDAL SENSOR MAY NOT RETURN TO ZERO, CAUSING THE ENGINE BRAKE TO POTENTIALLY NOT ACTIVATE AS EXPECTED. A SUDDEN LOSS OF AN ENGINE BRAKE, WITHOUT WARNING ON A MOTORHOME, MAY LEAD TO A REDUCED BRAKE CAPACITY POTENTIALLY INCREASING THE RISK OF A VEHICLE CRASH.

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, Throttle and cruise control

Vehicles listed
NEWMAR DUTCH STAR2014 to 2016
NEWMAR LONDON AIRE2015 to 2016
NEWMAR MOUNTAIN AIRE2015 to 2016

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