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Service bulletin 16NA172

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 id10137264
Published by NHTSA2018-05-21
Manufacturer's number16NA172
Manufacturer's date2018-01-19
NHTSA componentWHEELS; WHEELS:LUGS/NUTS/BOLTS/STUDS

NHTSA's summary

Prior to reinstallation of the outer dual rear wheels, ensure that the washers are removed and inspected wheel studs and lug nut threads for damage.

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

Wheels, Wheel nuts and studs

Vehicles listed
CHEVROLET EXPRESS2016, 2017, 2018
GMC SAVANA2016, 2017, 2018

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

Other bulletins for the same vehicles and component
17-NA-1262017-08-15. Service bulletin. This informational bulletin provides information on Non-Design Intent Wheel Lock Nuts and Lug Nuts.