BMW 230I 2017–2018 — technical service bulletin
Bulletin B620318 · NHTSA communication 10138400 · issued Apr 1, 2018
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
9
vehicle entries
Official summary
BASIC INSTRUMENT CLUSTER: DATE ERRONEOUSLY ADJUSTS BY ITSELF: The calendar date in the instrument cluster adjusts itself forward approximately one to two days.
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.