Mazda 3 Sport 2017 Manual page 280

When Driving
Cruise Control
NOTE
If any of the following conditions occur,
      
the cruise control system is temporarily
canceled.
The parking brake is applied.
      
(Automatic transaxle)
      
The selector lever is in the P or N
 
position.
(Manual transaxle)
      
The shift lever is in the neutral
 
position.
When the cruise control system is
      
temporarily canceled by even one of the
applicable cancel conditions, the speed
cannot be re-set.
(Automatic transaxle)
      
The cruise control cannot be cancelled
 
while driving in manual mode (selector
lever shifted from D to M position).
Therefore, engine braking will not be
applied even if the transaxle is shifted
down to a lower gear. If deceleration is
required, lower the set speed or depress
the brake pedal.
To Deactivate
When a cruising speed has been
set (cruise set indication (white) is
displayed/cruise set indicator light
(green) turns on)
Long-press the OFF/CAN switch or press
the OFF/CAN switch 2 times.
When a cruising speed has not been
set (cruise main indication (white) is
displayed)
Press the OFF/CAN switch.
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