Hyundai Sonata Hybrid 2017–2018 — technical service bulletin
Bulletin DBP982 · NHTSA communication 10211663 · issued Apr 20, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2018
model years
4
vehicle entries
Official summary
Hyundai is conducting a service campaign to further enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs on certain 2017-2018 model year Sonata Hybrid/Plug-In vehicles.
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.