Hyundai Sonata 2015–2021 — technical service bulletin
Bulletin 21-ST-001H · NHTSA communication 10186825 · issued Jan 28, 2021
Technical service bulletin
communication type
Steering
component
2015–2021
model years
10
vehicle entries
Official summary
The rack-mounted dual pinion Motor Driven Power Steering (MDPS) system components can be replaced separately from the complete assembly. This bulletin provides information on the separate components and the replacement procedure of these components.
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.