Mazda CX-5 2017–2021 — technical service bulletin
Bulletin 09-016-21-3797c · NHTSA communication 10203727 · issued Nov 19, 2021
Technical service bulletin
communication type
Equipment
component
2017–2021
model years
5
vehicle entries
Official summary
Some vehicles may exhibit rust or paint peeling at the inside edge of the front door(s). This may be caused by dust adhering between the front door edge and the rear door weatherstrip, which rubs/damages the paint during vehicle operation (door opening/closing and vibration while driving). NOTE: If the rust/paint peeling is seen on the outer side of the door, this service bulletin does not apply.
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.