Mazda CX-5 2013–2016 — technical service bulletin
Bulletin 09-041-17-3390 · NHTSA communication 10123443 · issued Oct 24, 2017
Technical service bulletin
communication type
Visibility
component
2013–2016
model years
4
vehicle entries
Official summary
Some vehicles may exhibit a white stain (A) running down the front door(s), which originates from under the outer door mirror. This is caused when water (containing white corrosion) is generated inside the door mirror base (B), then drains down the door panel causing a poor appearance concern. The door mirror base was originally designed to drain water to the outside of the door. The shape of the door mirror base gasket has been modified to drain water to the inside of the door. Replacing the gasket should eliminate this concern.
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.