Mazda MAZDA3 2014–2017 — technical service bulletin
Bulletin 09-063-16 · NHTSA communication 10186258 · issued Dec 13, 2016
Technical service bulletin
communication type
Structure
component
2014–2017
model years
4
vehicle entries
Official summary
Door glass will not open (stuck in run channel). Some customers may experience that one or more of the door glasses will not open due to becoming stuck in the glass run channel . The root cause is still under investigation. To correct the problem, the parts source will be changed.
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.