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August 3, 2023 Service bulletin

Warning message "Ultrasonic Sensor Malfunction" in the instrument cluster and the following DTC(s) stored...

Mazda technical service bulletin 09-026-23a for 2019-2021 Mazda MAZDA3 and 2020-2021 Mazda CX-30.

Bulletin number
09-026-23a
Component
Electrical system: ADAS: parking assist: sensors
Summary
Some vehicles may exhibit the warning message "Ultrasonic Sensor Malfunction" in the instrument cluster and the following DTC(s) stored after replacing the front and/or rear ultrasonic sensor(s) during body or paint repair.

Owners of these vehicles have filed 40 complaints in the electrical category.

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