Mazda MAZDA3 2019–2021 — technical service bulletin
Bulletin RF-23-04 · NHTSA communication 10233664 · issued Mar 31, 2023
Technical service bulletin
communication type
Equipment
component
2019–2021
model years
3
vehicle entries
Official summary
Due to a supplier change, Channel (L) Glass BDMT-59-60ZB-> BDMT-59-60ZF has been discontinued. The new part number BDMT-59-60ZH or later has been confirmed as an interchangeable part. Slight modifications will need to be made while also using rivet 90257-4810.
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.