BMW X5 2009–2011 — technical service bulletin
Bulletin SIB-63-05-09 · NHTSA communication 10036978 · issued Jun 1, 2010
Technical service bulletin
communication type
Exterior Lighting
component
2009–2011
model years
6
vehicle entries
Official summary
Bmw: the led trailer lights flicker while being towed.
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.