BMW Alpina XB7 2019–2023 — technical service bulletin
Bulletin SIB510623 · NHTSA communication 10236228 · issued Apr 1, 2023
Technical service bulletin
communication type
Exterior Lighting
component
2019–2023
model years
18
vehicle entries
Official summary
The hazard light (aka emergency flasher) button gets stuck in the ON or OFF position when actuated.
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.