BMW 330I 2019–2020 — technical service bulletin
Bulletin B610120 · NHTSA communication 10172495 · issued Feb 1, 2020
Technical service bulletin
communication type
Electrical System
component
2019–2020
model years
10
vehicle entries
Official summary
ACCESSORIES DO NOT POWER ON: Customer is not able to power accessories using the 12 volt power socket. Design change to reduce short circuits and blown fuses.
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.