Mazda CX-30 2019–2021 — technical service bulletin
Bulletin 07-004-22 · NHTSA communication 10222565 · issued Sep 23, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
5
vehicle entries
Official summary
Some customers may complain that after accelerating in hot weather, the A/C blows warm air for a longer time than other models. This is caused by improper control software of the PCM not allowing the A/C compressor to resume properly after acceleration. To eliminate this concern, the control software of the PCM has been modified.
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.