Mazda CX-52017 Owner's Manual page 284

When Driving
i-ACTIVSENSE
The Lane-keep Assist System (LAS) &
Lane Departure Warning System (LDWS)
goes on stand-by status in the following
cases:
The system cannot detect white (yellow)
      
lane lines.
The vehicle speed is less than about
      
60 km/h (37 mph).
The ABS/TCS is operating.
      
The TCS is turned off.
      
(If the TCS is turned off while the
 
system is operational, a warning beep is
heard and the system goes on standby.)
The vehicle is making a sharp curve.
      
The brake pedal is depressed.
      
The steering wheel is operated abruptly.
      
The width of a lane is excessively
      
narrow or wide.
NOTE
The Lane-keep Assist System (LAS)
      
& Lane Departure Warning System
(LDWS) does not operate until the
system detects white (yellow) lane lines
on either the left or right.
When the system detects a white
      
(yellow) lane line on one side only, the
system will not operate the steering
wheel operation assist and the warning
for the lane line on the side that is not
being detected. The steering wheel
operation assist and the warning is only
for a lane deviation on the side that is
being detected.
4–140
If the driver takes his or her hands off
      
the steering wheel (not holding the
steering wheel), the warning sound is
activated and an alert is indicated in the
multi-information display or the active
driving display.
 
Multi-information Display
Active Driving Display
(Windshield Type)
(Auto Flip-up Type)
If the steering wheel is held lightly,
 
or depending on the road conditions,
the system may detect that you have
released the steering wheel (not holding
the steering wheel) even if you are
holding it, and display a message in the
multi-information display or the active
driving display.
The timing at which the lane departure
      
warning is activated and the steering
wheel operation assist is performed
varies.