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Service bulletin PIT-4722

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 id10026804
Published by NHTSA2008-12-18
Manufacturer's numberPIT-4722
Manufacturer's date2008-10-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

NHTSA's summary

GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. *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
BUICK RAINIER2004, 2005, 2006
CADILLAC ESCALADE2000, 2001, 2002, 2003, 2004, 2005, 2006
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2000 to 2001
CHEVROLET AVALANCHE2002, 2003, 2004, 2005, 2006
CHEVROLET BLAZER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET BLAZER2006
CHEVROLET SILVERADO2000, 2001, 2002, 2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2000, 2001, 2002, 2003, 2004, 2005, 2006
CHEVROLET TRAILBLAZER2000 to 2001
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006
GMC DENALI2000 to 2003
GMC ENVOY2000 to 2001
GMC ENVOY2002, 2003, 2004, 2005, 2006
GMC JIMMY2000 to 2004
GMC SIERRA2000, 2001, 2002, 2003, 2004, 2005, 2006
GMC SONOMA2000, 2001, 2002, 2003, 2004
GMC SONOMA2005 to 2006
GMC YUKON2000, 2001, 2002, 2003, 2004, 2005, 2006
HUMMER H22004, 2005, 2006
HUMMER H2 SUT2004 to 2006
HUMMER H32004 to 2005
HUMMER H32006
OLDSMOBILE BRAVADA2000, 2001, 2002, 2003, 2004
SAAB 9-7X2005, 2006

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

Recalls for the same vehicles and component
03V0750002003-03-06. 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
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
06-00-89-031D2021-04-20. Service bulletin. 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.
PIP3330D2019-06-10. Service bulletin. This Preliminary Information Document advises the dealer that there is a software update available for the Powertrain Control Module to address diagnostic trouble code P0171. If the software update does not correct the condition, the dociment directs the dealer to related technical servce bulletins that cover cleaning fuel injectors and addressing fuel quality.
PIP3366C2018-08-20. Service bulletin. This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low (4LO) range. Dealers technician's are advised this condition should be deemed a normal characteristic of 4WD low operation.
09-07-30-018D2018-06-04. Service bulletin. This informational bulletin provides a revision for 09-07-30-018C to add the 2014 model year and update the Labor Operation.
01-00-89-010J2018-05-21. Service bulletin. This informational bulletin provides a revision for 01-00-89-010I to add the 2013 model year.
01-07-30-042H2018-05-21. Service bulletin. This information was created to inform the technician that the 2-3 upshift and the 3-2 downshift clunk is caused by the releasing of the 2-4 band and application of the 3-4 clutch assembly during an upshift. Also during a 3-2 downshift, the releasing of the 3-4 clutch during the application of the 2-4 band, can cause torque reversal down the output shaft creating a clunk. This is a normal condition.
1203100022017-12-22. Service bulletin. This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques used to install wheels onto vehicles
09-07-30-018C2017-10-12. Service bulletin. This warranty administration bulletin provides information on the change in automatic transmission add conditions documentation and claim submissions