When Driving; Vehicles During Headway Control; How to Set the Speed- Page 230

4–102

When Driving

i-ACTIVSENSE

How to Set the Speed

1.  Adjust the vehicle speed to the desired 

setting using the accelerator pedal.

2.  Headway control begins when the 

SET  or SET

 switch is pressed. The 

set speed and the inter-vehicle distance 

display filled with white lines are 
displayed. The Mazda Radar Cruise 
Control (MRCC) indicator light (green) 

is indicated simultaneously.

Travel status

Display

During travel at constant 

speed

During travel under 

headway control

NOTE



  If a vehicle ahead is detected while 

traveling at a constant speed, the 

vehicle-ahead indication is displayed 

and headway control is performed. 

Additionally, when a vehicle ahead is 

no longer detected, the vehicle-ahead 

indication turns off and the system 

switches back to travel at constant 

speed.



  Headway control is not possible if 

the vehicle ahead is driving faster 

than the set speed. Adjust the system 

to the desired vehicle speed using the 

accelerator pedal.

How to Set the Distance Between 

Vehicles During Headway Control

The distance between vehicles is set to a 

shorter distance each time the   switch is 

pressed. The distance between vehicles is 

set to a longer distance by pressing the   

switch. The distance-between-vehicles can 

be set to 4 levels; Long, medium, short, 

and extremely short distance.

Distance-between-

vehicles guideline

(at 80 km/h (50 mph) 

vehicle speed)

Indication on display

Long (about 50 m (164 

ft))

Medium (about 40 m 

(131 ft))

Mazda3_8FA4-EA-15G_Edition3.indb   102

2015/12/04   19:23:23