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Service bulletin 17-NA-145

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 id10137645
Published by NHTSA2018-05-21
Manufacturer's number17-NA-145
Manufacturer's date2017-05-24
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

This technical bulletin provides a procedure for checking and testing the cooling system first before replacing the Auxiliary Coolant Pump for a noise.

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

Engine, Cooling system

Vehicles listed
CHEVROLET VOLT2016, 2017

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
PIP5684B2020-08-10. Service bulletin. This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.
19NA1042019-07-29. Service bulletin. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
SB-16-NA-1142016-08-08. Service bulletin. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE HEATER WATER AUXILIARY PUMP HOSE TO CORRECT A CUSTOMER CONCERN OF A COOLANT LEAK, TEMPERATURE LIGHT ON, OR MALFUNCTION INDICATOR LIGHT ILLUMINATED DUE TO THE HOSE RUBBING AGAINST THE TRANSMISSION CORNER BOSS CREATING A HOLE.