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April 15, 2020 Service bulletin

Some customers may notice that the temperature setting of the automatic climate control may not change...

Mazda technical service bulletin 07-002-20-3692 for 2019-2020 Mazda MAZDA3 and 2020 Mazda CX-30.

Bulletin number
07-002-20-3692
Component
Equipment
Summary
Some customers may notice that the temperature setting of the automatic climate control may not change when the temperature dial is operated very slowly. Due to improper control logic of the automatic climate control unit (IP-ESU), turning operation may not be detected when the dial is operated very slowly. To eliminate this concern, the IP-ESU software has been modified.

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