# Service bulletin 09\-045\-23

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10248299
- Published by NHTSA: 2024\-01\-04
- Manufacturer's number: 09\-045\-23
- Manufacturer's date: 2023\-12\-15
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248299-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248299-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Software

## Trouble codes named

U3000

## Vehicles listed

- 2023 to 2024 MAZDA CX\-50
- 2024 MAZDA CX\-90

## Recalls for the same vehicles and component

- [24V817000](/recalls/nhtsa/24V817000.md), 2024-10-31: ELECTRICAL SYSTEM:PROPULSION SYSTEM:INVERTER; ELECTRICAL SYSTEM:SOFTWARE
- [24V814000](/recalls/nhtsa/24V814000.md), 2024-10-31: STRUCTURE:INTERIOR PANELS:DASHBOARD; ELECTRICAL SYSTEM:SOFTWARE

## Other bulletins for the same vehicles and component

- [15\-003\-23](/bulletins/10244577.md), 2023-11-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. While idling or parking, some customers may experience the i\-ACTIVSENSE warning appears in the instrument cluster and the parking sensor OFF switch in the cluster switch illuminates. Upon inspection, any of the following DTC B1B\*\* are stored in memory.
- [SA\-004\-22b](/bulletins/10213125.md), 2022-06-04, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
- [DRW46](/bulletins/10209724.md), 2022-04-06, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM:SOFTWARE. The Apple Car Play and Android Auto \(AA/CP\) software in the vehicles below needs to be updated to the latest version. The affected vehicles were built with an older version of the software and AA/CP functions may not work correctly. The repair will be a CMU software update via USB stick.

JSON: [/v1/bulletins/10248299](/v1/bulletins/10248299)

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