Engine & powertrain

PARKING_BRAKE_AUTO_APPLY

What it is

Auto-apply parking brake.

This property is true indicates that the car's automatic parking brake feature is currently enabled. False indicates that the car's automatic parking brake feature is currently disabled.

This property is often confused with PARKING_BRAKE_ON. The difference is that PARKING_BRAKE_ON describes whether the actual parking brake is currently on/off, whereas PARKING_BRAKE_AUTO_APPLY describes whether the feature of automatic parking brake is enabled/ disabled, and does not describe the current state of the actual parking brake.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x11200403 apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x01000000	GLOBAL
Type	0x00ff0000	0x00200000	BOOLEAN
Ordinal	0x0000ffff	0x00000403	0x403

Reading it from an app

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

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

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