Hyundai Sonata 2017 — technical service bulletin
Bulletin 5NP-R2S9M-12 · NHTSA communication 10119092 · issued Nov 15, 2016
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
Hyundai Motor America is conducting a Service Campaign to update both the ECU (Engine Control Unit) and the TCM (Transmission Control Unit) on dealer stock 2017 Model Year Sonata (2.4L).
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.