BMW 330I 2019 — technical service bulletin
Bulletin B540619 · NHTSA communication 10165260 · issued Aug 1, 2019
Technical service bulletin
communication type
Visibility
component
2019
model years
1
vehicle entries
Official summary
SUNROOF REVERSES WHEN CLOSING FROM TILT POSITION. The sunroof may reverse (anti-trap activates) when attempting to close from the vented position. This may only occur at high temperatures despite no obstruction being present. Sensitive anti-trap parameters.
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.