Mazda CX-70 2024–2025 — technical service bulletin
Bulletin SA-019-25 · NHTSA communication 11017696 · issued Apr 12, 2025
Technical service bulletin
communication type
Engine
component
2024–2025
model years
3
vehicle entries
Official summary
Some vehicles may exhibit the A/C compressor operating and making a buzzing noise after switching the ignition off. This may be caused by improper control logic of the PCM. To eliminate this for customer satisfaction, the control software of the PCM 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.