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Service bulletin 01242A

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 id10006284
Published by NHTSA2004-04-27
Manufacturer's number01242A
Manufacturer's date2004-01-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

NHTSA's summary

6.6L LB7 LLY DIESEL ENGINE DRIVE BELT CHIRPING ON SHUT DOWN. SIT BULLETIN 1460352. *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 SILVERADO2001, 2002, 2003, 2004
GMC SIERRA2001, 2002, 2003, 2004

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
30482004-09-28. Service bulletin. TIMING CHAIN TENSIONER BREAKPOINTS FOR SERVICE KIT OR PRODUCTION KIT. SUPPLEMENT TO 03-06-01-024B. *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
0206010102002-07-12. Service bulletin. INFORMATION ON SERPENTINE BELT IDENTIFICATION AND DIAGNOSIS FOR CERTAIN HD PICKUP MODELS. *TT