Fuel & energy

FUEL_LEVEL_LOW

What it is

Warning for fuel low level.

This property corresponds to the low fuel warning on the dashboard. Once FUEL_LEVEL_LOW is set, it should not be cleared until more fuel is added to the vehicle. This property may take into account all fuel sources for a vehicle - for example:

  For a gas powered vehicle, this property is based soley on gas level.
  For a battery powered vehicle, this property is based solely on battery level.
  For a hybrid vehicle, this property may be based on the combination of gas and battery
     levels, at the OEM's discretion.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x11200405 apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x01000000	GLOBAL
Type	0x00ff0000	0x00200000	BOOLEAN
Ordinal	0x0000ffff	0x00000405	0x405

Reading it from an app

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

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

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