WenmarOpen by Wenmar Pro

Service bulletin TSB 548

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 id10164998
Published by NHTSA2019-09-18
Manufacturer's numberTSB 548
Manufacturer's date2019-08-22
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

The Newmar Engineering Department discovered that HWH changed the step programming for 2020 coaches, causing the curb sensor not to function as originally designed. The new replacement version (A59650-4) will stop the auto level function any time the curb sensor activates after the two-second delay. If the engine is running, the auto level function will stop and air up the coach’s air bags when the curb sensor is activated.

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, Equipment and accessories

Vehicles listed
NEWMAR ESSEX2020
NEWMAR KING AIRE2020
NEWMAR LONDON AIRE2020

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