See also:

Front turn signal light
It may be difficult to replace the bulbs. Have the bulbs replaced by your SUBARU dealer if necessary. ...

For AT models
This light flashes if the vehicle is driven with tires of different diameters fitted on its wheels or with the air pressure excessively low in any of its tires. ...

Tire pressure monitoring system (TPMS) (if equipped)
The tire pressure monitoring system provides the driver with a warning message by sending a signal from a sensor that is installed in each wheel when tire pressure is severely low. The tire pressu ...