Mazda mazda3 2015 Owner's Manual page 272

When Driving
i-ACTIVSENSE
Distance-between-vehicles guidelines
Indication on display
(Vehicle-ahead indicator fl ashes)
*1 The distance between vehicles differs depending on vehicle speed.
4–122
*1
Distance between vehicles
guidelines
(During travel at about 40 km/h
(25 mph)
About 25 m (82 ft)
About 20 m (66 ft)
About 15 m (49 ft)
About 10 m (33 ft)
About 10 m (32 ft) or less
Distance between vehicles
guidelines
(During travel at about 80 km/h
(50 mph)
About 50 m (164 ft)
About 40 m (131 ft)
About 30 m (98 ft)
About 20 m (66 ft)
About 20 m (65 ft) or less