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Service bulletin 090604026E

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 id10085130
Published by NHTSA2016-11-29
Manufacturer's number090604026E
Manufacturer's date2012-10-15
NHTSA componentENGINE

NHTSA's summary

THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON IDENTIFYING NON-GM (AFTERMARKET) ENGINE CALIBRATIONS FOR GASOLINE ENGINES USING TECH 2 OR GDS 2

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

Vehicles listed
GMC GENERAL MOTORS

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