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Service bulletin 006

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 id633729
Published by NHTSA2002-09-24
Manufacturer's number006
Manufacturer's date2002-06-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's summary

CHANGE IN DIAGNOSTIC TROUBLE CODE P0128, THERMOSTAT MALFUNCTION, LOGIC. *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

Electrical system, Ignition

Trouble codes named

P0128

Vehicles listed
KIA OPTIMA2001

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