BMW X3 2018–2020 — technical service bulletin
Bulletin B660520 · NHTSA communication 10175286 · issued Apr 1, 2020
Technical service bulletin
communication type
Electrical System
component
2018–2020
model years
8
vehicle entries
Official summary
SERVICE ACTION - REPLACE LEFT FRONT SHORT RANGE RADAR SENSOR (SRR): The functionality of the left front SRR sensor could be reduced which would display the Driving Assistance Check Control Message.
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.