warning MAZDA MODEL MX-5 MIATA 2020 Repair Manual

Adaptive Front Lighting System (AFS)*
The adaptive front lighting system (AFS) automatically adjusts the headlight beams to the
left or right in conjunction with the operation of the steering wheel after the headlights have
been turned on.
A system malfunction or operation conditions are indicated by a warning.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspe cted on page 7-36.
NOTE
Headlights do not blind drivers approaching in the opposite direction no matter what side
of the road you must drive your vehicle (left-hand or right-hand traffic). Therefore, it is
not necessary to adjust the optical axis of the headlights when switching temporarily to
driving on the opposite side of the road (left-hand or right-hand traffic).
The Adaptive Front Lighting System (AFS) function can be switched to operable/
inoperable using the personalization function.
Refer to Personalization Features on page 9-9.
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High Beam Control System (HBC)*
The HBC determines the conditions in front of the vehicle using the Forward Sensing
Camera (FSC) while driving in darkness to automatically switch the headlights between
high and low beams.
Refer to Forward Sensing Camera (FSC) on page 4-105.
While driving the vehicle at a speed of about 30 km/h (19 mph) or more, the headlights are
switched to high beams when there are no vehicles ahead or appr oaching in the opposite
direction.
The system switches the headlight s to low beams when one of the following occurs:
The system detects a vehicle or the headlights/lights of a vehi cle approaching in the
opposite direction.
The vehicle is driven on roads lined with streetlamps or on roa ds in well-lit cities and
towns.
The vehicle is driven at less than about 20 km/h (12 mph).
Forward Sensing
Camera (FSC)
The recognition distance of the
Forward Sensing Camera (FSC)
varies according to the
surrounding conditions.
The warning light turns on when the system has a malfunction.
Refer to Contact Authorized Mazda
Dealer and Have Vehicle Inspected on page 7-36.
CAUTION
Do not adjust the vehicle height, modify th e headlight units, or remove the camera,
otherwise the system will not operate normally.
 Do not rely excessively on the HBC and drive the vehicle while paying sufficient attention to
safety. Switch the headlights between the high beams and low beams manually if
necessary.
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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) and if it determines that the vehicle may be devia ting from its lane, it notifies
the driver by flashing the LDWS warning light and activating th e LDWS warning beep, and
by the multi-info rmation display (vehicles with multi-informati on display).
Use the LDWS when you drive the vehicle on roads with white or yellow lines.
Refer to Forward Sensing Camera on page 4-105.

Forward Sensing Camera
(FSC)
The warning light illuminates when the system has a malfunction .
Refer to Warning Indication/Warning Lights on page 4-27.
WA R N I N G
Do not use the LDWS under the following conditions:
The system may not operate adequately accordin g to the actual driving conditions, resulting
in an accident.
 Driving on roads with tight curves.
 Driving under bad weather conditions (rain, fog, and snow).
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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 res ponsible 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 traffi c 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 dete ct 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 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.
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▼When the System Operates
1. The system goes on operation standby
when the LDWS OFF switch is
pressed and the LDWS OFF indicator
light in the instrument cluster turns off.
2. Drive the vehicle in the center of the
driving lane while the LDWS OFF
indicator light is turned off. The
system becomes operational when all
of the following conditions are met.
The vehicle is driven in the center of
the driving lane with the white or
yellow lines on the left and right
sides, or on either side.
The vehicle speed is about 70 km/h
(44 mph) or faster.
The vehicle is driven on a straight
road or road with gentle curves.
The LDWS does not operate in the
following cases:
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 curve at an
inadequate speed.
NOTE
The LDWS does not operate until the
system detects a white or yellow line on
either the left or right.
When the system detects a white or
yellow line on one side only, the system
will activate the warning only when the
vehicle deviates on the side where the
white or yellow line is being detected.
The distance and warning sensitivity
(likelihood of a warning) which the
system uses to determine the possibility
of a lane departure can be changed.
Refer to Personalization Features on
page 9-9.
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Auto cancel
In the following cases, the LDWS cancels
automatically and the LDWS warning
light in the instrument cluster turns on.
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 LDWS is enabled automatically when
the operation conditions are met, and the
LDWS warning light turns off.
Auto cancel warning
When the following operations are
performed, the LDWS determines that the
driver intends to make a lane change and
the LDWS warning is canceled
automatically. The LDWS is enabled
automatically after the driver performs the
operation.
The steering wheel is operated abruptly.
The brake pedal is depressed abruptly.
The accelerator pedal is depressed
abruptly.
The turn signal lever is operated (after
the turn signal lever is returned, the
LDWS may not operate for about 3
seconds which is the period of time
required to make a lane correction).
NOTE
After about 30 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.
▼ Canceling the System
Press the LDWS OFF sw
itch to cancel the
LDWS. The LDWS OFF indicator light
turns on.
Vehicle lane display (vehicles with
multi-information display)
The vehicle lane lines are no longer
indicated in the multi -information display
when the LDWS is canceled.
NOTE
When the ignition is switched OFF, the
system status before it was turned off is
maintained. For exampl e, if the ignition is
switched OFF with the LDWS operable,
the system will be operable when the
ignition is switched ON the next time.
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▼LDWS Warning
If the system determines that there is the
possibility of a lane departure, the LDWS
warning beep activates and the LDWS
warning light flashes. Operate the steering
wheel appropriately and steer the vehicle
to the center of the lane.
For vehicles equipped with the
multi-information disp
lay, the color of the
lane line in the direction which the system
determined that the vehicle may be
deviating from its lan e changes from white
to amber and the vehicle lane line flashes.
Indication on display

NOTE
If the LDWS warning sound is set to
rumble
*1, the sound will be heard from
the vehicle speaker on the side which the
system determined the vehicle may be
deviating from its lane.
It may be difficult to hear the LDWS
warning beep depending on the
surrounding conditions such as outside
noise.
The volume of the LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9.
The type of warning sound (rumble*1/
beep) on the LDWS can be changed.
Refer to Personalization Features on
page 9-9.
*1 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.

Rumble
Groove
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Blind Spot Monitoring (BSM)*
The BSM is designed to assist the driver in checking the area to the rear of the vehicle on
both sides during lane changes by alerting the driver to the pr esence of vehicles approaching
from the rear in an adjacent lane.
The BSM detects vehicles approaching from the rear while travel ing in the forward
direction at a speed of 10 km/h (6.3 mph) or faster and turns o n the BSM warning lights
equipped on the door mirrors depending on the conditions. If th e turn signal lever is
operated to signal a lane change in the direction in which the BSM warning light is
illuminated, the system warns the driver of a vehicle in the detection area by flashing the
BSM warning light and activating a beep sound.
The detection area on this system covers the driving lanes on b oth sides of the vehicle and
from the rear part of the doors to about 50 m (164 ft) behind t he vehicle.
Detection areas Your vehicle
WA R N I N G
Always check the surrounding area visually before making an actual lane change:
The system is only designed to assist you in checking for vehicles at your rear when making a
lane change. Due to certain limitations with the operation of this system, the BSM warning
light may not flash or it might be delayed even th ough a vehicle is in an adjacent driving lane.
Always make it your responsibility as a driver to check the rear.
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NOTE
The BSM will operate when all of the following conditions are met:
The ignition is switched ON.
The BSM switch is pressed and the BSM OFF indicator light in the instrument cluster is
turned off.
The vehicle speed is about 10 km/h (6.3 mph) or faster.
The BSM will not operate under the following circumstances.
The vehicle speed falls below about 10 km/h (6.3 mph) even though the BSM OFF
indicator light is turned off.
The shift lever (manual transmission)/selector lever (automatic transmission) is shifted
to reverse (R) and the vehicle is reversing.
In the following cases, the BSM OFF indicator light turns on and operation of the system
is stopped. If the BSM OFF indicator light re mains illuminated, have the vehicle inspected
at an Authorized Mazda Dealer as soon as possible.
Some problem with the system including the BSM warning lights is detected.
A large deviation in the installation position of a radar sensor (rear) on the vehicle has
occurred.
There is a large accumulation of snow or ice on the rear bumper near a radar sensor
(rear). Remove any snow, ice or mud on the rear bumper.
Driving on snow-covered roads for long periods.
The temperature near the radar sensors (rear) becomes extremely hot due to driving for
long periods on slopes during the summer.
The battery voltage has decreased.
Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.
A vehicle is in the detection area at the rear in an adjacent driving lane but it does not
approach. The BSM determines the condition based on radar detection data.
A vehicle is traveling alongside your vehicle at nearly the same speed for an extended
period of time.
Vehicles approaching in the opposite direction.
A vehicle in an adjacent driving lane is attempting to pass your vehicle.
A vehicle is in an adjacent lane on a road with extremely wide driving lanes. The
detection area of the radar sensors (rear) is set at the road width of expressways.
In the following cases, the activation of the BSM warning lights and the warning beep
may not occur or they may be delayed.
A vehicle makes a lane change from a driving lane two lanes over to an adjacent lane.
Driving on steep slopes.
Crossing the summit of a hill or mountain pass.
The turning radius is small (making a sharp turn, turning at intersections).
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When there is a difference in the height between your driving lane and the adjacent
lane.
Directly after the BSM system becomes operable by changing the setting.
If the road width is extremely narrow, vehicles two lanes over may be detected. The
detection area of the radar sensors (rear) is set according to the road width of
expressways.
The BSM warning lights may turn on in reaction to stationary objects on the road or the
roadside such as guardrails, tunnels, sidewalls, and parked vehicles.
Objects such as guardrails and concrete walls
running alongside the vehicle.Places where the width between guardrails or
walls on each side of the vehicle narrows.
The walls at the entrance and exits of tunnels,
turnouts.
A BSM warning light may flash or the warning beep may be activated several times when
making a turn at a city intersection.
Turn off the BSM while pulling a trailer or wh
ile an accessory such as a bicycle carrier is
installed to the rear of the vehicle. Otherwise, the radar’s radio waves will be blocked
causing the system to not operate normally.
In the following cases, it may be difficult to view the illumination/flashing of the BSM
warning lights equipped on the door mirrors.
Snow or ice is adhering to the door mirrors.
The door glass is fogged or covered in snow, frost or dirt.
The system switches to the Rear Cross Traffi c Alert (RCTA) function when the shift lever
(manual transmission) or the selector lever (automatic transmission) is shifted to the
reverse (R) position.
Refer to Rear Cross Traffic Alert (RCTA) on page 4-98.
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