ADAS & driver assistance

BLIND_SPOT_WARNING_STATE

What it is

Blind Spot Warning (BSW) state.

Returns the current state of BSW. This property must always return a valid state defined in BlindSpotWarningState or ErrorState. It must not surface errors through StatusCode and must use the supported error states instead.

For each supported area ID, the VehicleAreaConfig#supportedEnumValues array must be defined unless all states of both BlindSpotWarningState (including OTHER, which is not recommended) and ErrorState are supported.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x14401005 apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x04000000	MIRROR
Type	0x00ff0000	0x00400000	INT32
Ordinal	0x0000ffff	0x00001005	0x1005

Reading it from an app

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

int value =
        mgr.getIntProperty(VehiclePropertyIds.BLIND_SPOT_WARNING_STATE, areaId);

This property is read-only — writes are rejected. It fires a callback whenever the value changes.