An integer value indicating the desired fan speed position.
- iOS 10.0+
- Mac Catalyst 13.0+
The value in this property maps to the manual fan speed control in your vehicle. For example, the value 1 corresponds to the first position of the fan speed knob, the value 2 corresponds to the second position of the fan speed knob, and so on. Use this property to set the fan speed to the specific level requested by the user.
This property is
nil when the user modified a different climate control setting.