BMW X3 2025–2026 — technical service bulletin
Bulletin B640525 · NHTSA communication 11025683 · issued Nov 14, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2025–2026
model years
2
vehicle entries
Official summary
1. The customer states that the output air from one of the vehicle vent assemblies doesn’t match the desiredtemperature, will change temperature opposite of climate settings. 2. The customer states that the output air from one of the vehicle vent assemblies doesn’t match the desired temperature, nor change from Hot/Cold.
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.