BMW 330E 2019–2021 — technical service bulletin
Bulletin SIB340821 · NHTSA communication 10204626 · issued Jul 1, 2021
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2019–2021
model years
11
vehicle entries
Official summary
The yellow CCM, ID code 42, lights up when starting the vehicle. ID code 00042: Brake system. It is possible to continue driving. Additional notes: Avoid abrupt braking as far as possible. Drive at a moderate speed. Have it checked by your nearest Service Center.
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.