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Service bulletin FSA.23W01

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 id10237778
Published by NHTSA2023-06-13
Manufacturer's numberFSA.23W01
Manufacturer's date2023-05-12
NHTSA componentENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

Field service action to address Marathon pressure regulator coolant plate leaks in Hexagon Agility compressed natural gas (CNG) fuel systems.

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

Brakes, Engine, Fuel system

Vehicles listed
AGILITY FUEL SYSTEMS CNG PRESSURE RELIEF DEVIC

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