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November 14, 2023 Service bulletin

In-Vehicle Network Malfunction error message and Master Warning light ON with DTC U3000:04 (Telematics...

Mazda technical service bulletin SA-027-23c for 2021-2024 Mazda MAZDA3, 2021-2024 Mazda CX-5 and 2021-2023 Mazda CX-9 and others.

Bulletin number
SA-027-23c
Component
Electrical system
Summary
In-Vehicle Network Malfunction error message and Master Warning light ON with DTC U3000:04 (Telematics communication unit internal malfunction) stored.

Owners of these vehicles have filed 107 complaints in the electrical category.

Vehicles covered

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