BMW 320I 2011–2013 — technical service bulletin
Bulletin 340612 · NHTSA communication 10150377 · issued Dec 1, 2012
Technical service bulletin
communication type
Electrical System
component
2011–2013
model years
6
vehicle entries
Official summary
DSC Warning Light is On. The warning lamps for DSC, ABS and brake warning are illuminated. There may also be a warning in the control display for 'Chassis Control System failure' One or more of the following fault codes are stored: DSC ??D36D44 - Signal error longitudinal torque distribution (LMV) ??48097D - Transfer Case clutch position open CAUSE Software calibration error in the LMV
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.