Hyundai Sonata 2017 — technical service bulletin
Bulletin 5NP-H8T5W-12 · NHTSA communication 10119078 · issued Nov 1, 2016
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
This bulletin provides information related to certain 2017 Sonata vehicles to update the ECU and TCU for shift quality improvement.
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.