BMW 330I 2019 — technical service bulletin
Bulletin B663019 · NHTSA communication 10166372 · issued Sep 1, 2019
Technical service bulletin
communication type
Electrical System
component
2019
model years
4
vehicle entries
Official summary
ACTIVE CRUISE CONTROL (ACC): FRONT MID-RANGE RADAR FAULT CODE 48214E. Only after programming the vehicle with ISTA 4.19.1 or lower the fault code 48214E is set or stored in MidRange Radar (MRR) control module.
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.