Hyundai Sonata 2018 — technical service bulletin
Bulletin 5NP-X7G2S-09 · NHTSA communication 10144434 · issued Aug 9, 2018
Technical service bulletin
communication type
Vehicle Speed Control
component
2018
model years
1
vehicle entries
Official summary
This bulletin provides the procedure to update the TCU for shift shock when decelerating at slow speeds.
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.