BMW X5 2015–2017 — technical service bulletin
Bulletin B630117 · NHTSA communication 10146555 · issued Feb 1, 2017
Technical service bulletin
communication type
Exterior Lighting
component
2015–2017
model years
6
vehicle entries
Official summary
"?SERVICE ACTION: TARGETED ILLUMINATION - REPROGRAM CONTROL UNITS . Affected vehicles need to have control units reprogrammed. CCM (Check Control Message) ""Dynamic Light Spot has failed"" for left or right side. Stepper motors in the targeted illumination headlights can become non-functional at their stop limit."
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.