BYD F3/F3R Owner's Manual page 113

Defrosting
The outside of the windshield
For best results, set controls to:
Fan speed: any value expect "0"
Temperature: towards WARM (red zone)
Air intake: FRESH (outside air)
Air flow: WINDSHIELD
Air conditioning: OFF
To heat the vehicle interior while defrosting
the windshield, choose
FLOOR/WINDSHIELD air flow.
F3/F3R OWNER'S MANUAL
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