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:
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 ...
Brake pedal
Check the brake pedal free play and reserve distance according to the maintenance
schedule in the “Warranty and Maintenance Booklet”. ...
Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low
driving speeds) a few minutes each month during the off-season to circulate its
oil. ...