Mazda CX-30 2019–2020 — technical service bulletin
Bulletin SA-045-19 · NHTSA communication 10166853 · issued Oct 30, 2019
Technical service bulletin
communication type
Equipment
component
2019–2020
model years
7
vehicle entries
Official summary
Currently, Mazda does not have a way to cut the auxiliary keys for the new style remote transmitter as they use a different key code than the previous transmitter key. Follow the repair procedure if one or both auxiliary keys are lost:
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.