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Service bulletin SB-09-06-04-025

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 id10030725
Published by NHTSA2009-11-23
Manufacturer's numberSB-09-06-04-025
Manufacturer's date2010-12-01
ReplacesSB-09-06-04-025A
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

SAAB/HUMMER/GMC/CHEVROLET: MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, DTCS P0300-P0306, ENGINE RUNS ROUGH (INSPECT FOR WATER INTRUSION IN SPARK PLUG RECESS AREA, REPLACE SPARK PLUG AND IGNITION COIL, SEAL IGNITION COIL BOLT HOLE VENTS AND SEAL HOOD AIR GRILLE). *PE UPDATED 6/7/11. *PE

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

Trouble codes named

P0300, P0306

Vehicles listed
CHEVROLET COLORADO2008, 2009
CHEVROLET TRAILBLAZER2008, 2009
GMC CANYON2008, 2009
GMC ENVOY2008, 2009
HUMMER H32008, 2009
HUMMER H3 SUT2009
SAAB 9-7X2008, 2009

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
04-06-04-051J2024-10-31. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
09-06-04-026Y2024-09-05. Service bulletin. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
01-06-01-011P2024-09-05. Service bulletin. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
15-00-89-004G2024-05-15. Service bulletin. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
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19-NA-0442024-02-21. Service bulletin. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
16-NA-3382024-02-17. Service bulletin. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
11273A2024-02-12. Service bulletin. Special Coverage Adjustment ? Throttle Position Sensor Replacement