Mazda MAZDA3 2019–2021 — technical service bulletin
Bulletin 09-017-22 · NHTSA communication 10210938 · issued Apr 29, 2022
Technical service bulletin
communication type
Equipment
component
2019–2021
model years
3
vehicle entries
Official summary
Some vehicles may have rust on the contact parts between the clips (for attaching the roof molding) and the roof panel (ditches of the roof rail). This is caused by the gap between the roof molding attachment clips and the roof panel not being wide enough to allow paint to be appropriately applied to the roof panel. To eliminate this concern, the shape of the roof molding clip has been changed to enable paint application between the clip's rib and roof during the manufacturing process.
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.