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Service bulletin 03T02

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 id10000952
Published by NHTSA2003-04-05
Manufacturer's number03T02
Manufacturer's date2003-01-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

ENGINE HESITATION AND/OR VEHICLE LACKS POWER WITH DIAGNOSTIC TROUBLE CODE (DTC) P0326 KNOCK SENSOR SYSTEM PERFORMANCE SET. *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

Trouble codes named

P0326

Vehicles listed
SATURN S-SERIES2000 to 2002

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