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Service bulletin RSB 508

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 id10129958
Published by NHTSA2018-03-12
Manufacturer's numberRSB 508
Manufacturer's date2018-02-08
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH

NHTSA's summary

Newmar Corporation has decided that certain 2018 Essex motorhomes, built on Freightliner Chassis, fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 108, ?Lamps, Reflective Devices, and Associated Equipment.? On certain motorhomes, if the headlight high beams are activated, only the high beam bulbs illuminate. The intention of the high beam function on the affected coaches is to have both the high beam and low beam bulbs illuminate together. Issue: Driving a motorhome at night without the required illumination of the road may reduce the driver?s visibility, increasing the risk of a crash causing injury and/or property damage.

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

Lighting, Headlights

Vehicles listed
NEWMAR ESSEX2018

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