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Service bulletin 13386

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 id10057258
Published by NHTSA2015-05-07
Manufacturer's number13386
Manufacturer's date2015-01-01
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

GENERAL MOTORS: 2010-2011CHEVROLET EXPRESS, SAVANA: THE NITROGEN OXIDE SENSOR MAY FAIL ON CERTAIN EQUIPPED 6.6L DIESEL ENGINE DUE TO CONTAMINATION IN THE SENSOR AND WIRE INTERFACE. *LJ SEE DOCUMENT SEARCH BUTTON FOR OWNERS LETTER *LJ

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

Electrical system, Software

Vehicles listed
GMC SAVANA2010, 2011

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

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