Mazda CX-3 Owner's Manual page 306

When Driving
i-ACTIVSENSE
NOTE
The Smart City Brake Support [Forward] (SCBS F) system will operate under the
   
following conditions.
The engine is running.
      
The Smart Brake Support/Smart City Brake Support (SBS/SCBS) system warning
      
light (amber) does not illuminate.
(Rear-end collision warning)
      
The vehicle speed is about 4 to 80 km/h (2 to 50 mph).
 
(Brake control (SCBS brake))
      
The vehicle speed is about 4 to 30 km/h (2 to 18 mph).
 
The Smart City Brake Support [Forward] (SCBS F) system is not turned off.
      
Under the following conditions, the Smart City Brake Support [Forward] (SCBS F)
    
system may not operate normally:
The Smart City Brake Support [Forward] (SCBS F) system will not operate if the
      
driver is deliberately performing driving operations (accelerator pedal and steering
wheel).
If there is the possibility of partial contact with a vehicle ahead.
      
The vehicle is driven on a slippery road surface such as wet roads or icy or snow-
      
bound roads.
The braking performance is adversely affected due to cold temperatures or wet
      
brakes.
The vehicle is driven at the same speed as the vehicle ahead.
      
The accelerator pedal is depressed.
      
The brake pedal is depressed.
      
The steering wheel is being operated.
      
The selector lever is being operated.
      
In the following cases, the Forward Sensing Camera (FSC) determines that there is a
    
vehicle ahead and the Smart City Brake Support [Forward] (SCBS F) may operate.
Objects on the road at the entrance to a curve.
      
Vehicles passing in the opposite lane while making a curve.
      
Metal objects, bumps, or protruding objects on the road.
      
When passing through a toll gate.
      
When passing through low gates, narrow gates, car washing machines, or tunnels.
      
If you suddenly come close to a vehicle ahead.
      
2-wheeled vehicles, pedestrians, animals or standing trees.
      
Vehicle is driven with some of the tyres having signifi cant wear.
      
(Manual transaxle)
    
If the vehicle is stopped by the SCBS operation and the clutch pedal is not depressed,

the engine stops.
4–168