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Service bulletin 18NA066

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 id10137296
Published by NHTSA2018-05-21
Manufacturer's number18NA066
Manufacturer's date2018-03-29
NHTSA componentELECTRICAL SYSTEM:WIRING

NHTSA's summary

This technical bulletin provides a procedure to locate and repair a I/P wiring harness that may be pinched or contacting the tie bar frame and A-pillar.

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, Wiring and fuses

Vehicles listed
CHEVROLET SONIC2017, 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
100089005G2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
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.
18NA0662018-05-21. Service bulletin. This technical bulletin provides a procedure to locate and repair a I/P wiring harness that may be pinched or contacting the tie bar frame and A-pillar.
10-00-89-005F2017-10-05. Service bulletin. This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information.