BMW X3 2018–2021 — technical service bulletin
Bulletin B651921 · NHTSA communication 10205071 · issued Nov 1, 2021
Technical service bulletin
communication type
Electrical System
component
2018–2021
model years
16
vehicle entries
Official summary
BMW AG has issued a Delivery Stop (effective October 15, 2021) on certain Model Year 2022 BMW vehicles that were produced between September 28, 2021 and October 8, 2021. The issue involves the Active Crash Safety Module (ACSM) sensor.
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.