BMW 128I 2011–2013 — technical service bulletin
Bulletin 640313 · NHTSA communication 10150127 · issued Mar 1, 2013
Technical service bulletin
communication type
Visibility
component
2011–2013
model years
7
vehicle entries
Official summary
IHKA Control Panel Not Working. IHKA (Integrated Automatic Heating and Air Conditioning) panel does not work or light up. CAUSE Fuse blown or chaffed wire for rear trunk light
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.