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Service bulletin 020605005A

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 id10000726
Published by NHTSA2003-03-27
Manufacturer's number020605005A
Manufacturer's date2002-12-01
Replaces020605005
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *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, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
CADILLAC ESCALADE2002, 2003
CHEVROLET AVALANCHE2002, 2003
CHEVROLET SILVERADO2000, 2001, 2002, 2003
CHEVROLET SUBURBAN2000, 2001, 2002, 2003
GMC DENALI2000 to 2003
GMC SIERRA2000, 2001, 2002, 2003
GMC YUKON2000, 2001, 2002, 2003
HUMMER H22003

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

Other bulletins for the same vehicles and component
020605005C2003-02-27. Service bulletin. EXHAUST/MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *TT UPDATED *EH