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Service bulletin 99T66

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 id609896
Published by NHTSA2000-04-11
Manufacturer's number99T66
Manufacturer's date1999-12-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

VEHICLES EQUIPPED WITH DOHC ENGINES, AUTOMATIC TRANSAXLES AND FEDERAL EMISSIONS MAY EXHIBIT A SERVICE ENGINE SOON LIGHT AND A DTC P0133 - O2S SLOW RESPONSE SENSOR 1. *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, Exhaust and emissions

Trouble codes named

P0133

Vehicles listed
SATURN S-SERIES1999

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