BMW 750I 2009–2010 — technical service bulletin
Bulletin 511409 · NHTSA communication 10150038 · issued Jul 1, 2013
Technical service bulletin
communication type
Structure
component
2009–2010
model years
5
vehicle entries
Official summary
Automatic Trunk Lid Does Not Close Properly. Intermittently, the automatic trunk lid (HKL) will not close properly. When the automatic close button on the trunk lid is pressed, the trunk lid will begin closing and then reopen, just before it reaches the end of travel. Closing the trunk manually will allow it to properly latch closed. No relevant fault codes are stored. CAUSE Software error in the HKL control unit
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.