Kia Optima 2001 — technical service bulletin
Bulletin 028 · NHTSA communication 10001683 · issued Mar 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
1
vehicle entries
Official summary
Service campaign to replace oxygen sensors and to reprogram the engine control module (ecm) to reduce incidence of malfunction indicator lamp illumination with oxygen sensor related diagnostic trouble codes. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.