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Service bulletin SB-16-NA-114

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 id10078465
Published by NHTSA2016-08-08
Manufacturer's numberSB-16-NA-114
Manufacturer's date2016-04-11
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

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.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

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.
17-NA-1452018-05-21. Service bulletin. This technical bulletin provides a procedure for checking and testing the cooling system first before replacing the Auxiliary Coolant Pump for a noise.