Mazda CX-30 2019–2021 — technical service bulletin
Bulletin 09-040-23 · NHTSA communication 10246207 · issued Nov 14, 2023
Technical service bulletin
communication type
Fuel System, Gasoline
component
2019–2021
model years
5
vehicle entries
Official summary
When opening the fuel-filler lid to refuel, some customers may notice water and/or sand in the fuel-filler lid box area. They may complain about dried sand causing poor appearance.
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.