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Service bulletin PIE-0129

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 id10037128
Published by NHTSA2011-05-09
Manufacturer's numberPIE-0129
Manufacturer's date2010-10-01
NHTSA componentENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

GM: THERE MAY BE AN ENGINE COOLANT LEAK OR KNOCK NOISE. THERE COULD BE AN ENGINE COOLING FAN BREAK. *RM

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 C45002006 to 2007
CHEVROLET C55002006 to 2007
CHEVROLET KODIAK2006 to 2007
GMC C45002006 to 2007
GMC C55002006 to 2007
GMC TOPKICK2006 to 2007

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