BMW 428I 2014–2016 — technical service bulletin
Bulletin B660315 · NHTSA communication 10152318 · issued Apr 1, 2015
Technical service bulletin
communication type
Unknown OR Other
component
2014–2016
model years
6
vehicle entries
Official summary
Smart Opener Function Causes False Trunk Lid Activation. Sporadically the trunk lid will open (false activation) without a customer request. This occurs by just walking toward the rear of the vehicle with the remote. Smart opener software error
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.