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Vehicle properties
ADAS & driver assistance

DRIVER_DISTRACTION_SYSTEM_ENABLED

What it is

Enable or disable driver distraction monitoring.

Set true to enable driver distraction monitoring and false to disable driver distraction monitoring. When driver distraction monitoring is enabled, a system inside the vehicle should be monitoring the distraction level of the driver and warn the driver if needed.

In general, DRIVER_DISTRACTION_SYSTEM_ENABLED should always return true or false. If the feature is not available due to some temporary state, that information must be conveyed through the ErrorState values in the DRIVER_DISTRACTION_STATE property.

This property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to implement it as VehiclePropertyAccess.READ only.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x1120101d apart:

FieldMaskValueMeans
Group0xf00000000x10000000SYSTEM
Area0x0f0000000x01000000GLOBAL
Type0x00ff00000x00200000BOOLEAN
Ordinal0x0000ffff0x0000101d0x101d

Reading it from an app

CarPropertyManager mgr = (CarPropertyManager)
        car.getCarManager(Car.PROPERTY_SERVICE);

boolean value =
        mgr.getBooleanProperty(VehiclePropertyIds.DRIVER_DISTRACTION_SYSTEM_ENABLED, 0);

This property can be read and written, though an OEM may implement it as read-only. It fires a callback whenever the value changes.