BMW 228I 2023–2024 — technical service bulletin
Bulletin B650121 · NHTSA communication 11002864 · issued Jun 12, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2023–2024
model years
12
vehicle entries
Official summary
No Bass or a cracking noise can be heard from the bass speakers.
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.