Hyundai Sonata 2015–2017 — technical service bulletin
Bulletin 20-01-025H · NHTSA communication 10177131 · issued Jun 19, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2017
model years
3
vehicle entries
Official summary
This bulletin provides the procedure to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) on certain 2015-2017 Hyundai Sonatas equipped with 1.6L turbo engine 7-speed DCT Transmission.
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.