WenmarOpen by Wenmar Pro

Service bulletin FSB.0033

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 id10230404
Published by NHTSA2023-01-17
Manufacturer's numberFSB.0033
Manufacturer's date2022-12-22
NHTSA componentEQUIPMENT; FUEL/PROPULSION SYSTEM

NHTSA's summary

Bulletin addressing CNG fuel system abnormal operation and loss of range concerns. Operators instructed to cycle all cylinder valves to fully CLOSED and to fully OPEN.

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

Equipment and accessories, Fuel system

Vehicles listed
AGILITY FUEL SYSTEMS CNG FUEL SYSTEM

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