BMW X5 2019–2021 — technical service bulletin
Bulletin B640421 · NHTSA communication 10200244 · issued Jun 1, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
3
vehicle entries
Official summary
Moisture in the driver footwell and/or passenger footwell when the air conditioning (A/C) is activated.
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.