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Service bulletin FS-2017-05

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 id10117370
Published by NHTSA2017-09-14
Manufacturer's numberFS-2017-05
Manufacturer's date2017-08-22
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

This field service bulletin is instructing vehicle owners and aftermarket part purchasers to remove the "Duck Bill" valves in the rear run box to prevent water intrapment, which can contribute to corrosion of some components. Owners are asked to permanently remove the duck bill valves from the rear run box in each bus (and units in parts inventory) per the included instructions.

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

Vehicles listed
GILLIG LOW FLOOR2013 to 2017

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