Hyundai Sonata 2003–2004 — technical service bulletin
Bulletin 0436009 · NHTSA communication 10008730 · issued Jun 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
2
vehicle entries
Official summary
Check engine light illumination with diagnostic trouble code (dtc) p0133/p0153. Engine control module (ecm) reprogramming. *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.