Hyundai Sonata 2017 — technical service bulletin
Bulletin 5NP-X9D6M-01 · NHTSA communication 10089404 · issued Dec 12, 2016
Technical service bulletin
communication type
Power Train
component
2017
model years
1
vehicle entries
Official summary
"this bulletin provides information related to certain 2017 sonata vehicles to update the ecu and/or 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.