Mazda CX-5 2021–2024 — technical service bulletin
Bulletin 09-001-24a · NHTSA communication 10251361 · issued Feb 13, 2024
Technical service bulletin
communication type
Electrical System
component
2021–2024
model years
15
vehicle entries
Official summary
Some customers may experience a â Telematics Malfunctionâ 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.