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Service bulletin 110604007C

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 id10245749
Published by NHTSA2023-12-04
Manufacturer's number110604007C
Manufacturer's date2012-11-01
NHTSA componentEXTERIOR LIGHTING; POWER TRAIN

NHTSA's summary

Diagnosis and Repair - Malfunction Indicator Lamp (MIL) Illuminated, Reduced Engine Power Message Displayed, 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

Lighting, Transmission and driveline

Trouble codes named

P2135

Vehicles listed
CADILLAC ESCALADE2008, 2009, 2010, 2011
CADILLAC ESCALADE HYBRID2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2008, 2009, 2010, 2011
CHEVROLET COLORADO2008, 2009, 2010, 2011
CHEVROLET EXPRESS2008, 2009, 2010, 2011
CHEVROLET SILVERADO 15002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2008, 2009, 2010, 2011
CHEVROLET TAHOE2008, 2009, 2010, 2011
CHEVROLET TRAILBLAZER2008, 2009
GMC CANYON2008, 2009, 2010, 2011
GMC ENVOY2008, 2009
GMC SAVANA2008, 2009, 2010, 2011
GMC SIERRA 15002008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002011 (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 YUKON2008, 2009, 2010, 2011
GMC YUKON HYBRID2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22009, 2010
HUMMER H32008, 2009, 2010

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

Recalls for the same vehicles and component
11V3370002011-06-28. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
09V3100002009-07-29. EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
20082682008-07-30. Powertrain
08V3400002008-07-28. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
20082492008-07-14. Powertrain
08V3130002008-07-11. POWER TRAIN:AUTOMATIC TRANSMISSION

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
07-08-42-006U2025-12-03. Service bulletin. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
07-08-42-006T2025-04-25. Service bulletin. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
04-06-01-029K2024-12-04. Service bulletin. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
20-NA-1382024-11-05. Service bulletin. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
08-07-30-026I2024-10-24. Service bulletin. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
24-NA-1412024-08-15. Service bulletin. GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
99-04-20-002O2024-07-30. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
08-07-30-035H2024-06-07. Service bulletin. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
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.
PI0488C2024-05-06. Service bulletin. Diagnostic Information for Transmission.