Mazda CX-30 2019–2023 — technical service bulletin
Bulletin SA-034-22 · NHTSA communication 10213148 · issued May 20, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2023
model years
13
vehicle entries
Official summary
When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
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.