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Service bulletin S16YU Instructio

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 id10184351
Published by NHTSA2020-12-21
Manufacturer's numberS16YU Instructio
Manufacturer's date2016-09-01
NHTSA componentEQUIPMENT; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES, AIR:CRITICAL FASTENERS

NHTSA's summary

Rear axle shaft flange gasket torque relaxes allowing for possible oil leak between the axle shaft and hub

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, Equipment and accessories, Transmission and driveline, Axle

Vehicles listed
BLUE BIRD ALL AMERICAN2015 to 2017
BLUE BIRD VISION2015 to 2017

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