Hyundai Sonata 2021 — technical service bulletin
Bulletin 20-01-045H · NHTSA communication 10185414 · issued Dec 2, 2020
Technical service bulletin
communication type
Equipment
component
2021
model years
1
vehicle entries
Official summary
This bulletin describes the procedure to identify and program certain Sonata vehicles Rear Corner Radars from the Advanced Driver Assistance Systems (ADAS) modules to enable the Safe Exit Assist (SEA) warning feature.
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.