Mazda CX-70 2024–2025 — technical service bulletin
Bulletin 09-039-25 · NHTSA communication 11024835 · issued Oct 18, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2024–2025
model years
3
vehicle entries
Official summary
Some customers may experience that the right subwoofer audio sound pauses intermittently at high volume level. This is caused by improper control software of the audio amplifier (Bose® audio system). The audio amplifier’s power IC may sometimes mistakenly detect an over-temperature condition and shut down operation to prevent damage to the IC. To eliminate this concern, the control software of the audio amplifier 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.