BMW 640I 2012–2013 — technical service bulletin
Bulletin 340112 · NHTSA communication 10150376 · issued Dec 1, 2012
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
5
vehicle entries
Official summary
Service Action: Replace Integrated Chassis Control Module (ICM). Due to a hardware fault in the ICM control module, an error code may be stored during engine start. If this condition were to occur, the airbag warning lamp would illuminate and be accompanied by a Check Control Message and acoustic warning.
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.