Hyundai Sonata 1999 — technical service bulletin
Bulletin 9940007 · NHTSA communication 605842 · issued May 1, 1999
Technical service bulletin
communication type
Power Train
component
1999
model years
1
vehicle entries
Official summary
The transaxle control module (tcm) logic in certain models incorporates three new features. This bulletin describes these features and includes relevant service information. *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.