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February 7, 2025 Service bulletin

Some customers may complain about a very low frequency noise and/or vibration felt at the steering wheel,...

Mazda technical service bulletin 01-001-25 for 2019-2020 Mazda MAZDA3 and 2020 Mazda CX-30.

Bulletin number
01-001-25
Component
Engine
Summary
Some customers may complain about a very low frequency noise and/or vibration felt at the steering wheel, the floor and/or the seats when driving at 1500-1650 rpm in any gear position. This may be caused by normal vehicle behavior while the cylinder deactivation is active (two cylinders drive). The state of the cylinder deactivation can be monitored in the center display to help verify if this is the issue.

Owners of these vehicles have filed 18 complaints in the engine category.

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