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Service bulletin 032703

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 id10001873
Published by NHTSA2003-07-24
Manufacturer's number032703
Manufacturer's date2003-03-27
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

ENGINE FAN RUBBING NOISE DURING TURNS, MORE COMMONLY FOUND ON LEFT TURNS ON 2003 ST PICK-UPS AND CLASS STYLE UTILITIES. *TT *JB

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, Cooling fan, Cooling system

Vehicles listed
CHEVROLET CHEVROLET TRUCK2003
GMC GMC TRUCK2003

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