# U3000 on the 2022 Mazda CX\-5

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name U3000

- [11008568](https://open.wenmarpro.com/bulletins/11008568), 2024-10-05: Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:00\-TCU \(Emergency call unit/telematics communication unit internal malfunction\) or 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.
- [11005538](https://open.wenmarpro.com/bulletins/11005538), 2024-08-02: 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.
- [11003354](https://open.wenmarpro.com/bulletins/11003354), 2024-07-05: 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.
- [10254189](https://open.wenmarpro.com/bulletins/10254189), 2024-05-04: 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.
- [10252503](https://open.wenmarpro.com/bulletins/10252503), 2024-04-03: 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.
- [10251361](https://open.wenmarpro.com/bulletins/10251361), 2024-03-06: 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.
- [10249499](https://open.wenmarpro.com/bulletins/10249499), 2024-02-01: 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.
- [10248394](https://open.wenmarpro.com/bulletins/10248394), 2024-01-06: Some vehicles may exhibit an “In Vehicle Network Malfunction” message appearing in the instrument cluster with DTC U3000:04\-TCU \(Telematics communication unit internal malfunction\) stored after the connected service contract has been discontinued. 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
- [10246210](https://open.wenmarpro.com/bulletins/10246210), 2023-12-05: In\-Vehicle Network Malfunction error message and Master Warning light ON with DTC U3000:04 \(Telematics communication unit internal malfunction\) stored.
- [10238692](https://open.wenmarpro.com/bulletins/10238692), 2023-07-05: IN\-VEHICLE NETWORK MALFUNCTION AND MASTER WARNING LIGHT ON. DTC U3000:04 STORED \(DOES NOT APPLY TO 09\-001/23\)