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Service bulletin 030604033

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 id10002860
Published by NHTSA2003-09-29
Manufacturer's number030604033
Manufacturer's date2004-03-01
Replaces030604033A
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

REVISED DIAGNOSTIC TROUBLE CODE P0336. *TT UPDATE. TO INCLUDE 2004 ISUZU NQR COMMERCIAL MODELS. *TT

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

Engine

Trouble codes named

P0336

Vehicles listed
BUICK RAINIER2004
CADILLAC ESCALADE2003
CHEVROLET ASTRO2003 to 2004
CHEVROLET AVALANCHE2003
CHEVROLET BLAZER2003, 2004
CHEVROLET EXPRESS2003, 2004
CHEVROLET KODIAK2003 to 2004
CHEVROLET S102003 to 2004
CHEVROLET SILVERADO2003
CHEVROLET SUBURBAN2003
CHEVROLET TAHOE2003
CHEVROLET TRAILBLAZER2003, 2004
CHEVROLET TRAILBLAZER EXT2004 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET W-SERIES2003
GMC ENVOY2003, 2004
GMC ENVOY XL2004 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2004 (the catalog's model; the bulletin names a series or trim of it)
GMC JIMMY2003 to 2004
GMC SAFARI2003, 2004
GMC SAVANA2003, 2004
GMC SIERRA2003
GMC SONOMA2003, 2004
GMC TOPKICK2003
GMC YUKON2003
GMC YUKON DENALI2003 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22003, 2004
ISUZU ASCENDER2003, 2004
ISUZU NPR2003 to 2004
ISUZU NQR2003, 2004

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

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