See also:

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. ...

Precautions against vehicle modification
To avoid accidental activation of the system or rendering the system inoperative, which may result in serious injury, no modifications should be made to any components or wiring of the S ...

Braking when a tire is punctured
Do not depress the brake pedal suddenly when a tire is punctured. This could cause a loss of control of the vehicle. Keep driving straight ahead while gradually reducing speed. Then slowly pull of ...