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Service bulletin 020601010

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 id632326
Published by NHTSA2002-07-12
Manufacturer's number020601010
Manufacturer's date2002-03-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

NHTSA's summary

INFORMATION ON SERPENTINE BELT IDENTIFICATION AND DIAGNOSIS FOR CERTAIN HD PICKUP 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, Drive belts

Vehicles listed
CHEVROLET SILVERADO 25002002 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002001, 2002 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET redundant SILVERADO 25002001
GMC SIERRA 25002001, 2002 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002001, 2002 (the catalog's model; the bulletin names a series or trim of it)

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
01242A2004-04-27. Service bulletin. 6.6L LB7 LLY DIESEL ENGINE DRIVE BELT CHIRPING ON SHUT DOWN. SIT BULLETIN 1460352. *TT
020601010A2003-09-26. Service bulletin. SERPENTINE BELT IDENTIFICATION AND DIAGNOSIS FOR MEDIUM DUTY TRUCKS. VARIOUS MODELS INCLUDING THE CHEVROLET AND GMC C5500 MD 2003. *TT