BMW 320I 2012–2013 — technical service bulletin
Bulletin 660412 · NHTSA communication 10149615 · issued May 1, 2013
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
6
vehicle entries
Official summary
The PDC system falsely detects obstacles on all front and rear sensors when no obstacles are present around the vehicle. Software error in the REM (Rear Electronic Module)
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.