MINI Cooper 2017–2018 — technical service bulletin
Bulletin M720117 · NHTSA communication 10146731 · issued Jun 1, 2017
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
3
vehicle entries
Official summary
NOISE FROM HEAD AIR BAG. During low outdoor temperatures, with the doors and windows closed, a metallic whirring noise is detected in the area of the head air bag (HPS).
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.