Mazda MAZDA3 2014–2017 — technical service bulletin
Bulletin 09-021-17-3356 · NHTSA communication 10120352 · issued Jun 12, 2017
Technical service bulletin
communication type
Equipment
component
2014–2017
model years
4
vehicle entries
Official summary
Some vehicles may experience a rattle noise from the front door glass when driving with the window open approx. 1/2 to 4 inches (1 - 10 cm). The rattle noise may be caused by insufficient holding force of the glass run channel. To increase the holding force, the shape of glass run channel has been changed and non-woven pads have been attached to the glass run channel.
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.