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Service bulletin 3338A

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 id10017089
Published by NHTSA2005-10-24
Manufacturer's number3338A
Replaces3338D
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

NHTSA's summary

DRIVE BELT NOISE - ADJUST OR REPLACE IDLER PULLEY BRACKET. *TT POTENTIAL ALIGNMENT AND BELT ISSUES. *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, Drive belts

Vehicles listed
CHEVROLET COLORADO2004, 2005, 2006
GMC CANYON2004, 2005, 2006
HUMMER H32006

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