Mazda MAZDA3 2017 — technical service bulletin
Bulletin SA328 · NHTSA communication 10186922 · issued Oct 7, 2016
Technical service bulletin
communication type
Electrical System
component
2017
model years
2
vehicle entries
Official summary
2017 Mazda 3 and 6 - Do not update the Mazda connect system with an earlier version of software.
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.