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Service bulletin SB-11340

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 id10043857
Published by NHTSA2012-04-30
Manufacturer's numberSB-11340
Manufacturer's date2012-11-01
ReplacesSB-11340-C
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT- TIMING CHAIN WEAR. ON SOME 2007 MODEL YEAR VEHICLES THAT ARE EQUIPPED WITH A 2.8L/3.6L V6 ENGINE (LP1/LY7), UNDER CERTAIN DRIVING CONDITIONS, AND WITH THE VEHICLE'S ORIGINAL OIL CHANGE INTERVALS, THE TIMING CHAIN COULD WEAR PREMATURELY. *JS UPDATED 06/18/2012 *JS UPDATED 9/6/12. *PE UPDATED 1/24/13. *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

Vehicles listed
BUICK ENCLAVE2009
CADILLAC CTS2007, 2008, 2009
CADILLAC SRX2007, 2008, 2009
CADILLAC STS2007, 2008, 2009
CHEVROLET TRAVERSE2009
GMC ACADIA2007
SATURN OUTLOOK2007
SATURN OUTLOOK2009

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.
18-NA-1152024-08-14. Service bulletin. This service bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
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.
PI0746E2024-04-29. Service bulletin. Malfunction Indicator Lamp.
PI0746D2024-04-29. Service bulletin. Malfunction Indicator Lamp.
PI0746C2024-04-29. Service bulletin. Malfunction Indicator Lamp.
PI0746B2024-04-29. Service bulletin. Malfunction Indicator Lamp.