BMW 328I 2016–2017 — technical service bulletin
Bulletin B662216 · NHTSA communication 10146968 · issued Nov 1, 2016
Technical service bulletin
communication type
Equipment
component
2016–2017
model years
4
vehicle entries
Official summary
LANE CHANGE WARNING: FALSE ACTIVATION. Lane Change Warning (LCW) system issues warnings when no other vehicle is present: illuminates lane change warning indicator on the exterior mirrors vibrates steering wheel Lane change sensor software
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.