Mazda 3 Owner's Manual page 222

How to Set the Distance Between
Vehicles During Headway Control
The distance between vehicles is set to a
shorter distance each time the
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)
Long (about 50 m (164
ft))
Medium (about 40 m
(131 ft))
Short (about 30 m (98
ft))
Extremely short (about
25 m (82 ft))
NOTE
The distance between vehicles differs
depending on the vehicle speed, and the
slower the vehicle speed, the shorter the
distance.
When the ignition is switched to ACC
or OFF and then the engine is started
again, the system automatically sets
the distance between vehicles to the
previous setting.
Mazda Radar Cruise Control (MRCC)
switch is
Indication on display
Changing the Set Vehicle Speed
Changing the set vehicle speed using the
SET / SET switch
Press the SET switch to accelerate. Press
the SET switch to decelerate. The set
vehicle speed changes as follows each
time the SET / SET switch is pressed.
Short press
Long press
NOTE
For example, the set vehicle speed is
changed by pressing the SET / SET
switch four times as follows:
The vehicle speed accelerates or
decelerates by 4 km/h (4 mph).
To accelerate using accelerator pedal
Depress the accelerator pedal and press
and release the SET or SET switch at
the desired speed. If a switch cannot be
operated, the system returns to the set
speed when you release your foot from the
accelerator pedal.
CAUTION
The warnings and brake control do not
operate while the accelerator pedal is
depressed.
When Driving
1 km/h (1 mph)
10 km/h (5 mph)
4–97