Kia Optima 2001 — technical service bulletin
Bulletin 006 · NHTSA communication 633729 · issued Jun 1, 2002
Technical service bulletin
communication type
Electrical System
component
2001
model years
1
vehicle entries
Official summary
Change in diagnostic trouble code p0128, thermostat malfunction, logic. *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.