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:
Selecting preset channels
Presetting a channel with a preset button allows you to select that channel in
a single operation. Up to six SAT1, SAT2 and SAT3 channels each may be preset. ...
Electronic Brake Force Distribution (EBD) system warning
The brake system warning light also illuminates if a malfunction
occurs in the EBD system. In that event, it illuminates together with the ABS warning
light. The EBD system may be malfunctioning i ...
Photosensors
The mirror has a photosensor attached on both the front and back sides. During
nighttime driving, these sensors detect distracting glare from vehicle headlights
behind you and automatically dim ...