BMW 640I 2012–2013 — technical service bulletin
Bulletin 512312 · NHTSA communication 10150378 · issued Dec 1, 2012
Technical service bulletin
communication type
Visibility
component
2012–2013
model years
5
vehicle entries
Official summary
Front Door Window/Rear Side Window Reverses when Closing. When using the automatic window closing feature, intermittently the rear window automatically reverses. CAUSE Sensitivity of the anti-trap feature
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.