See also:

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 pre ...

Tire chains
CAUTION Tire chains cannot be used on any tires for your Legacy and Outback because of lack of clearance between the tires and vehicle body. ...

If the light is blinking
If the light is blinking while driving, an engine misfire condition has been detected which may damage the emission control system. To prevent serious damage to the emission control system, you shoul ...