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Service bulletin PIP-3366-B

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 id10043185
Published by NHTSA2012-02-29
Manufacturer's numberPIP-3366-B
Manufacturer's date2011-11-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

CADILLAC/CHEVROLET/GMC/HUMMER: SOME SUVS AND TRUCKS ARE EXHIBITING A CONDITION WHERE BY GRINDING/RATCHETING TYPE NOISE COMING FROM AUTOMATIC TRANSMISSION WHEN SHIFTING INTO PARK WHILE IN 4WD LOW (4LO) RANGE. *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

Transmission and driveline, Automatic transmission

Vehicles listed
CHEVROLET AVALANCHE2004, 2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET BLAZER2004, 2005
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET S102004 to 2007
CHEVROLET SILVERADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET SILVERADO CLASSIC2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET TRAILBLAZER2004, 2005, 2006, 2007
GMC CANYON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC ENVOY2004, 2005, 2006, 2007, 2008, 2009
GMC JIMMY1999 to 2004
GMC SIERRA2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC SIERRA CLASSIC2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
GMC SONOMA1999, 2000, 2001, 2002, 2003, 2004
GMC SONOMA2005

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)

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
121382023-12-04. Service bulletin. Transmission Dipstick Tube Fracture
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
16-NA-1302023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
150089004C2021-03-08. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
060089031F2020-12-21. Service bulletin. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
1308116001F2020-12-07. Service bulletin. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
PIT5206G2020-08-10. Service bulletin. This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set. Technician will use this preliminary information to find the brake pedal position data parameters in the scan tool, and also to provide some additional diagnostic help. These issues may be caused by an incorrect brake pedal position sensor input to the engine control module. Technician will verify with the scan tool if the engine control module has the correct parameters for the brake pedal position sensor. If an engine control module brake pedal position sensor relearn is performed, the truck may be temporarily repaired until the intermittent wiring issue between the engine control module and brake pedal position sensor occurs again. On 2014 and newer trucks inspect and repair any damage to X115 and X119. On the 2014 and previous trucks inspect and repair any damage to X205.