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Service bulletin 19NA225

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 id10173400
Published by NHTSA2020-04-06
Manufacturer's number19NA225
Manufacturer's date2020-02-07
NHTSA componentENGINE; EQUIPMENT; ELECTRICAL SYSTEM:WIRING

NHTSA's summary

This technical bulletin provides a procedure to locate and repair the engine wiring harness if found the cause of the DIC Messages, MIL Illumination and DTCs Set.

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

Electrical system, Engine, Equipment and accessories, Wiring and fuses

Vehicles listed
CHEVROLET MALIBU2019, 2020

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
16NA0512020-03-02. Service bulletin. This technical bulletin provides a procedure for connector kit and ambient air temperature sensor harness replacement to correct a MIL Illuminated with DTCs and active shutters being inoperative.
100089005H2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.