Hyundai Sonata 2002–2003 — technical service bulletin
Bulletin 03010121 · NHTSA communication 10005646 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002–2003
model years
3
vehicle entries
Official summary
Engine control module (ecm) reprogramming related to 2.7l v6 engine 02 sensors (campaign v02) - revised. May experience check engine light on or diagnostic trouble codes p0133, p0134, p1134, p0153, p0154 and p1154. *tt
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.