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Service bulletin 06-06-01-019C

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 id10251887
Published by NHTSA2024-03-19
Manufacturer's number06-06-01-019C
Manufacturer's date2024-03-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.

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

Vehicles listed
BUICK RAINIER2004, 2005, 2006
CADILLAC ESCALADE2001, 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 EXT 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BLAZER2001, 2002, 2003, 2004, 2005
CHEVROLET BLAZER2006
CHEVROLET SILVERADO 15002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2001, 2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2001, 2002, 2003, 2004, 2005, 2006
CHEVROLET SUBURBAN 15002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2001, 2002, 2003, 2004, 2005, 2006
CHEVROLET TRAILBLAZER2001
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006
CHEVROLET TRAILBLAZER 3602002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT 3702002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET redundant SILVERADO 25002001
GMC ENVOY2001
GMC ENVOY2002, 2003, 2004, 2005, 2006
GMC ENVOY 3602002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY DENALI2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY DENALI XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL 3702002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC JIMMY2001 to 2004
GMC JIMMY CLASSIC2005
GMC SIERRA 15002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 1500 HD2001, 2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2002, 2003 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2001, 2002, 2003, 2004, 2005, 2006
GMC YUKON DENALI2001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2001, 2002, 2003, 2004, 2005, 2006
GMC YUKON XL 15002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL 25002001, 2002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL DENALI2001, 2002, 2003 (the catalog's model; the bulletin names a series or trim of it)
OLDSMOBILE BRAVADA2001, 2002, 2003, 2004
PONTIAC FIREBIRD2000, 2001, 2002
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
20073632007-11-09. Engine
07V5210002007-11-07. ENGINE AND ENGINE COOLING
06V2890002006-08-03. ENGINE AND ENGINE COOLING
04V2890002004-06-23. ENGINE AND ENGINE COOLING
20041952004-06-11. Engine

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
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.
03-06-01-023H2024-11-14. Service bulletin. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
01-06-01-011P2024-09-05. Service bulletin. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
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.
16-NA-3832024-03-19. Service bulletin. This technical 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.
22-NA-0742024-02-29. 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.
16-NA-3382024-02-17. Service bulletin. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
PI1394B2024-02-02. Service bulletin. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
120601007A2023-12-04. Service bulletin. New Service Cam Bearings For Gen IV V8 Engines