Mazda CX-30 2020–2025 — technical service bulletin
Bulletin 09-001-24e · NHTSA communication 11005538 · issued Jul 2, 2024
Technical service bulletin
communication type
Electrical System
component
2020–2025
model years
22
vehicle entries
Official summary
Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
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
- 2025 Mazda CX-70
- 2021 Mazda CX-9
- 2022 Mazda CX-9
- 2023 Mazda CX-9
- 2024 Mazda CX-90
- 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.