Two separate circuits
Your vehicle has two separate circuit brake systems. Each circuit works diagonally across the vehicle. If one circuit of the brake system should fail, the other half of the system still works. If one circuit fails, the brake pedal will go down much closer to the floor than usual and you will need to press it down much harder. And a much longer distance will be needed to stop the vehicle.
See also:
The Inside
While it's possible to get fairly comfortable in many cars, it's not every
day that you feel like everything is right in terms of your driving position,
and that's how I felt in the Impreza 2.5GT. ...
Clutch pedal (MT models)
Check the clutch pedal free play and reserve distance according to the maintenance
schedule in the “Warranty and Maintenance Booklet”. ...
Hill start assist warning light
Refer to “Hill start assist warning light (MT
models)”. ...