Mazda TSB #07-005-20-3745
2019 Mazda MAZDA3
Affected Component: EQUIPMENT:APPLIANCE:AIR CONDITIONER
- Summary
- Some customers may complain that the A/C blows warm air while idling after restarting a warm engine. This is caused by improper control software of the PCM not allowing the active air shutter to open properly, resulting in lower cooling performance at idle. To eliminate this concern, the control software of the PCM has been modified.