Hyundai Sonata 2003–2004 — technical service bulletin
Bulletin 0540009 · NHTSA communication 10016160 · issued Jul 1, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
2
vehicle entries
Official summary
2003-2004 sonata 2.4l/2.7l tcm reprogramming instructions for driveline bump between 2-10 mph. *sc
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.