Mazda CX-30 2019–2024 — technical service bulletin
Bulletin SA-025-23a · NHTSA communication 10248389 · issued Dec 5, 2023
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2019–2024
model years
23
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.. CAUTION: DO NOT swap TCU with another vehicle as the TCU is VIN locked after activation. A TCU swap with another vehicle will disable Connected Services on both vehicles. If TCU activation is not performed, connected vehicle functions will not operate. This will have a negative impact on the customer because they will need to return to the dealer for rep
Vehicles covered
- 2020 Mazda CX-30
- 2021 Mazda CX-30
- 2022 Mazda CX-30
- 2023 Mazda CX-30
- 2024 Mazda CX-30
- 2021 Mazda CX-5
- 2022 Mazda CX-5
- 2023 Mazda CX-5
- 2024 Mazda CX-5
- 2023 Mazda CX-50
- 2024 Mazda CX-50
- 2021 Mazda CX-9
- 2022 Mazda CX-9
- 2023 Mazda CX-9
- 2024 Mazda CX-90
- 2019 Mazda MAZDA3
- 2020 Mazda MAZDA3
- 2021 Mazda MAZDA3
- 2022 Mazda MAZDA3
- 2023 Mazda MAZDA3
- 2024 Mazda MAZDA3
- 2022 Mazda MX-30
- 2023 Mazda MX-30
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.