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Service bulletin FS-2017-04

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 id10115288
Published by NHTSA2017-08-16
Manufacturer's numberFS-2017-04
Manufacturer's date2017-07-28
NHTSA componentFUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

This field service bulletin is informing vehicle owners and aftermarket part purchasers that the Pressure Relief Device (PRD) vent tube caps on Agility CNG systems are important to maintain to help prevent moisture and/or debris from causing the PRD to malfunction. The bulletin is clear that the existing vent tube caps need not be replaced unless missing or damaged, but if they are replaced, the PRD vent lines and PRD bodies must be inspected prior to replacing a cap. The new vent tube caps are red in color to facilitate visibility, making inspections easier.

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, Fuel hoses and lines

Vehicles listed
GILLIG LOW FLOOR2010 to 2017

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