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Service bulletin 97110197037H

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 id54183
Published by NHTSA1998-03-30
Manufacturer's number97110197037H
Manufacturer's date1997-11-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

SUBJECT ON PREMATURE PISTON FAILURE. *YC

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

Vehicles listed
GMC C6H1997
GMC C75001997
GMC GMC1997

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