BMW X3 2017–2021 — technical service bulletin
Bulletin B661719 · NHTSA communication 11017504 · issued Apr 30, 2025
Technical service bulletin
communication type
Service Brakes
component
2017–2021
model years
9
vehicle entries
Official summary
The vehicle applies the brakes on its own when reversing onto an inclined roadway or driveway. This appliesonly to the situation where the Active PDC option is activated via the iDrive.
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.