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November 19, 2025 Service bulletin

There have been warranty claims submitted for growling or bearing whine noise in differentials, transfer...

Mazda technical service bulletin SA-020-25a for 2012-2026 Mazda MAZDA3, 2013-2025 Mazda CX-5 and 2014-2021 Mazda MAZDA6 and others.

Bulletin number
SA-020-25a
Component
Wheels
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.

Owners of these vehicles have filed 101 complaints in the wheels category.

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