BMW 330I 2019 — technical service bulletin
Bulletin B663519 · NHTSA communication 10168017 · issued Oct 1, 2019
Technical service bulletin
communication type
Electrical System
component
2019
model years
1
vehicle entries
Official summary
DELIVERY STOP: PROGRAM CONTROL UNITS - MISSING OPTION CODE. Without Option Code SA5AU, Driving Assistant Professional is not enabled.
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.