Mazda 3 Owners Manual: Lane Departure Warning System (LDWS)
The LDWS notifies the driver that the vehicle may be deviating from its
lane.
The system detects the white or yellow lines on the traffic lane using the
Forward Sensing
Camera (FSC). If it determines that the vehicle may be deviating from its lane,
it notifies
the driver by flashing the LDWS indicator light (green) and operating the LDWS
warning
sound.
Refer to Forward Sensing Camera on .
Use the LDWS when you drive the vehicle on roads with white or yellow lines.
The warning light flashes when the system has a malfunction.
Refer to Warning Lights on .]
WARNING
Do not use the LDWS under the following conditions:
The system may not operate adequately according to the actual driving
conditions,
resulting in an accident.
- Driving on roads with tight curves.
- Driving under bad weather conditions (rain, fog, and
snow).
The functions of the LDWS have limitations:
Always stay on course using the steering wheel and drive with care. The
system is not
designed to compensate for a driver’s lack of caution and if you rely
too much on the
LDWS it could lead to an accident. The driver is responsible for
assuring lane changes and
other maneuvers. Always pay attention to the direction in which the
vehicle is traveling
and the vehicle’s surroundings. |
CAUTION
Do not modify the suspension. If the vehicle height or the damping force
of the
suspensions is changed, the LDWS may not operate correctly. |
NOTE
- If your vehicle deviates from its traffic lane, the LDWS
operates (warning sound and
indicator light). Steer the vehicle adequately to drive the vehicle to the
center of the lane.
- When the turn signal lever is operated for a lane change, the LDWS
warning is
automatically canceled. The LDWS warning becomes operable when the turn
signal lever
is returned and the system detects the white or yellow lines.
- If the steering wheel, accelerator pedal, or brake pedal is operated
abruptly and the
vehicle moves close to a white or yellow line, the system determines that
the driver is
making a lane change and the LDWS warning is automatically canceled.
- The LDWS may not operate during the period immediately after
the vehicle has deviated
from its lane and the LDWS has operated, or the vehicle deviates from its
lane repeatedly
within a short period of time.
- The LDWS does not operate if it does not detect the white or
yellow lines of the traffic
lane.
- Under the following conditions, the LDWS may not be able to detect
white or yellow lines
correctly and the LDWS may not operate correctly.
- If an object placed on the dashboard is reflected in the windshield
and picked up by the
camera.
- Heavy luggage is loaded in the luggage compartment or on the rear
seat and the
vehicle is inclined.
- The tire pressures are not adjusted to the specified pressure.
- When the vehicle is driven on the entry and exit to or from the
rest area or tollgate of a
highway.
- The white or yellow lines are less visible because of dirt or paint
flaking.
- The vehicle ahead is running near a white or yellow line and the line
is less visible.
- A white or yellow line is less visible because of bad weather (rain,
fog, or snow).
- The vehicle is driven on a temporary lane or section with a closed
lane due to
construction.
- A misleading line is picked up on the road such as a temporary line
for construction,
or because of shade, lingering snow, or grooves filled with water.
- The surrounding brightness suddenly changes such as when
entering or exiting a
tunnel.
- The illumination of the headlights is weakened because of dirt or the
optical axis is
deviated.
- The windshield is dirty or foggy.
- Back-light is reflecting from the road surface.
- The road surface is wet and shiny after rain, or there are puddles on
the road.
- The shade of a guardrail parallel to a white or yellow line is on the
road.
- The width of a lane is excessively narrow or wide.
- The road is excessively uneven.
- The vehicle is shaken after hitting a road bump.
- There are two or more adjacent white or yellow lines.
- There are various road markings or lane markings of various shapes
near an
intersection.
When the System Operates
- Press the LDWS switch. The LDWS
goes on stand-by and the LDWS
warning light (amber) illuminates.
The lane indication (bordered line) is
indicated in the active driving display
(Type A instrument cluster *1 ) or the
multi information display (Type B
instrument cluster *1 ).
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on .
Indication on display
- Drive the vehicle near the center of
the lane and the LDWS indicator light
(green) illuminates in the instrument
cluster when all of the following
conditions are met.
- The vehicle is driven near the center of
the lane with the white or yellow line
on the left and right sides, or on either
side.
- The vehicle speed is about 70 km/h (44
mph) or more
- The vehicle is driven on a straight road
or road with gentle curves
The lane indication is indicated in
the active driving display (Type A
instrument cluster *1 ) or the multi
information display (Type B instrument
cluster *1 ).
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on .
Indication on display
NOTE
- The LDWS remains on stand-by until it
detects white or yellow lines on both the
left and right sides, or on either side.
- When the system detects a white or
yellow line on one side only, the system
will operate the warning only when the
vehicle deviates to the side the white or
yellow line detected.
Auto cancel
Under the following conditions, the
LDWS is automatically canceled and
kept on stand-by, and the LDWS warning
light (amber) in the instrument cluster
illuminates.
- The system cannot detect white or
yellow lines.
- The vehicle speed is less than about 65
km/h (40 mph).
- The vehicle is making a sharp turn.
- The vehicle is making a turn at an
inadequate speed.
- The temperature inside the camera is
high or low.
- The windshield around the camera is
foggy.
- The windshield around the camera is
blocked by an obstruction, causing poor
forward visibility.
The lane indication (bordered line) is
indicated in the active driving display
(Type A instrument cluster *1 ) or the multi
information display (Type B instrument
cluster *1 ).
The LDWS is automatically enabled when
the condition changes and the system is
operable.
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on .
Auto cancel of warning
Under the following conditions, the
LDWS determines that the driver is
making lane changes and the warning is
automatically canceled.
The LDWS is automatically enabled after
the operation.
- The steering wheel is operated abruptly.
- The brake pedal is depressed abruptly.
- The accelerator pedal is depressed
abruptly.
- A turn signal lever is operated (after the
turn signal lever is returned, the LDWS
warning may not operate for about 3
seconds which is the period of time
required to make a lane correction).
NOTE
- After about 5 seconds have elapsed
with the turn signal lever left operating,
the LDWS warning may operate if the
vehicle is close to a white or yellow line.
- The sensitivity of the warning
(sensitivity with which the system
determines the driver's intentional lane
change) can be changed.
Refer to Personalization Features on
Canceling the System
To cancel the LDWS, press the LDWS
switch. The LDWS indicator light (Green/
Amber) in the instrument cluster turns off.
The lane indication displayed in the
active driving display (Type A instrument
cluster *1 ) or the multi information display
(Type B instrument cluster *1 ) turns off.
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on .
LDWS Warning
If the system determines that the vehicle
may be deviating from its lane while the
system is operating, the LDWS warning
sounds and the LDWS indicator light
(green) flashes.
Refer to Lane Departure Warning System
(LDWS) Warning Sound on .
In the active driving display (Type
A instrument cluster *1 ) or the multi
information display (Type B instrument
cluster *1 ), the direction in which the
system determined that the vehicle may
be deviating from its lane is indicated.
Operate the steering wheel adequately and
drive in the center of the lane.
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on .
Indication on display
NOTE
- If the LDWS warning sound is set to
rumble *2 , the sound will be heard from
the vehicle speaker on the side which
the system determined the vehicle may
be deviating from its lane.
- The LDWS warning sound may not be
heard depending on the surrounding
conditions such as outside noise.
- The warning timing with which the
system determines the vehicle may be
deviating from its lane can be changed.
Refer to Personalization Features on .
- The volume of the LDWS warning sound
can be changed.
Refer to Personalization Features on .
- The type of warning sound (rumble *2 /
beep) on the LDWS can be changed.
Refer to Personalization Features on .
*2 A rumble strip is a series of grooves in
the road pavement surface positioned at
specific intervals, and when the vehicle
passes over it a vibration and rumble
sound is produced which alerts the driver
that the vehicle is departing from the lane.
The rumble sound is a reproduction of the
sound which occurs when a vehicle passes
over a rumble strip.
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