July 2, 2024 Service bulletin

Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC...

Mazda technical service bulletin 09-001-24e for 2021-2024 Mazda MAZDA3, 2021-2024 Mazda CX-5 and 2021-2023 Mazda CX-9 and others.

Bulletin number: 09-001-24e
Component: Electrical system
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.

Owners of these vehicles have filed 157 complaints in the electrical category.

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