BMW 330I 2019–2020 — technical service bulletin
Bulletin B340220 · NHTSA communication 10175274 · issued Apr 1, 2020
Technical service bulletin
communication type
Electronic Stability Control
component
2019–2020
model years
3
vehicle entries
Official summary
NOTICEABLE JERK WHEN DRIVING OFF IN ACTIVE CRUISE CONTROL (ACC) MODE: A noticeable jerk can be felt at 2-3 mph when driving off in ACC mode. Software in the Dynamic Stability Control (DSC) unit.
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.