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Service bulletin 11-06-04-007C

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 id10137449
Published by NHTSA2018-05-21
Manufacturer's number11-06-04-007C
Manufacturer's date2012-11-08
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This technical bulletin provides a procedure for replacing the throttle position sensor cover for concerns regarding a indicator lamp illuminated reduced power message displayed and DTC P2135 set.

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

Engine

Trouble codes named

P2135

Vehicles listed
CADILLAC ESCALADE2005, 2006
CADILLAC ESCALADE2008, 2009
CADILLAC ESCALADE2011, 2012
CADILLAC ESCALADE ESV2005 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2009 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 15002005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2007
CHEVROLET AVALANCHE2009, 2010, 2011, 2012
CHEVROLET AVALANCHE 15002006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2005, 2006
CHEVROLET COLORADO2008, 2009, 2010
CHEVROLET EXPRESS2005, 2006, 2007, 2008, 2009
CHEVROLET EXPRESS2012
CHEVROLET SILVERADO 15002011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2005, 2006, 2007, 2008
CHEVROLET SUBURBAN2010
CHEVROLET SUBURBAN2013
CHEVROLET T SERIES2010
CHEVROLET TAHOE2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET TRAILBLAZER2013
GMC CANYON2005, 2006, 2007, 2008
GMC CANYON2010
GMC CANYON2012
GMC ENVOY2005
GMC ENVOY2008, 2009
GMC ENVOY2011
GMC SAVANA2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA 15002006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002008 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002011 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2005, 2006, 2007, 2008
GMC YUKON2013
GMC YUKON DENALI2005 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2005 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2005
GMC YUKON XL2009
GMC YUKON XL2011
GMC YUKON XL2012 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22005
HUMMER H22010
HUMMER H32006

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

Recalls for the same vehicles and component
16V8680002016-12-02. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
06V2890002006-08-03. ENGINE AND ENGINE COOLING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
00-06-01-026R2025-12-03. Service bulletin. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
23-NA-1532025-10-25. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
25-NA-0522025-04-28. Service bulletin. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.
25-NA-0522025-04-10. Service bulletin. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.
22-NA-0742025-02-12. Service bulletin. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
09-06-04-026Z2025-01-23. Service bulletin. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
03-06-01-023I2025-01-17. Service bulletin. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
19-NA-2192024-12-17. Service bulletin. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
21-NA-0432024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.