Mazda CX-3 2012–2026 — technical service bulletin
Bulletin SA-020-25a · NHTSA communication 11026347 · issued Nov 19, 2025
Technical service bulletin
communication type
Wheels
component
2012–2026
model years
60
vehicle entries
Official summary
There have been warranty claims submitted for growling or bearing whine noise in differentials, transfer units and transmissions where the source of the noise was a wheel bearing. This misdiagnosis can lead to multiple repair attempts, warranty debits, and additional inconvenience and/or cost to the customer. To reduce the chance of this occurring, please follow the steps outlined in the repair procedure.
Vehicles covered
- 2016 Mazda CX-3
- 2017 Mazda CX-3
- 2018 Mazda CX-3
- 2019 Mazda CX-3
- 2020 Mazda CX-3
- 2021 Mazda CX-3
- 2020 Mazda CX-30
- 2021 Mazda CX-30
- 2022 Mazda CX-30
- 2023 Mazda CX-30
- 2024 Mazda CX-30
- 2025 Mazda CX-30
- 2026 Mazda CX-30
- 2013 Mazda CX-5
- 2014 Mazda CX-5
- 2015 Mazda CX-5
- 2016 Mazda CX-5
- 2017 Mazda CX-5
- 2018 Mazda CX-5
- 2019 Mazda CX-5
- 2020 Mazda CX-5
- 2021 Mazda CX-5
- 2022 Mazda CX-5
- 2023 Mazda CX-5
- 2024 Mazda CX-5
- 2025 Mazda CX-5
- 2023 Mazda CX-50
- 2024 Mazda CX-50
- 2025 Mazda CX-50
- 2026 Mazda CX-50
- 2025 Mazda CX-50 Hybrid
- 2026 Mazda CX-50 Hybrid
- 2025 Mazda CX-70
- 2026 Mazda CX-70
- 2025 Mazda CX-70 Plug-In Hybrid
- 2026 Mazda CX-70 Plug-In Hybrid
- 2016 Mazda CX-9
- 2017 Mazda CX-9
- 2018 Mazda CX-9
- 2019 Mazda CX-9
- 2020 Mazda CX-9
- 2021 Mazda CX-9
- 2022 Mazda CX-9
- 2023 Mazda CX-9
- 2024 Mazda CX-90
- 2025 Mazda CX-90
- 2026 Mazda CX-90
- 2024 Mazda CX-90 Plug-In Hybrid
- 2025 Mazda CX-90 Plug-In Hybrid
- 2026 Mazda CX-90 Plug-In Hybrid
- 2012 Mazda MAZDA3
- 2013 Mazda MAZDA3
- 2014 Mazda MAZDA3
- 2015 Mazda MAZDA3
- 2016 Mazda MAZDA3
- 2017 Mazda MAZDA3
- 2018 Mazda MAZDA3
- 2019 Mazda MAZDA3
- 2020 Mazda MAZDA3
- 2021 Mazda MAZDA3
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.