Hyundai Sonata 2009 — technical service bulletin
Bulletin TSB-08-AT-012 · NHTSA communication 10027225 · issued Nov 1, 2008
Technical service bulletin
communication type
Power Train
component
2009
model years
1
vehicle entries
Official summary
Hyundai: procedure to update the powertrain control module with the most recent shift schedule calibration for vehicles with automatic transaxles. *pe
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.