lights MAZDA MODEL MX-5 MIATA RF 2020 Service Manual

NOTE
The timing in which the system switches the headlights changes under the following
conditions. If the system does not switch the headlights appropriately, manually switch
between high and low beams according to the visibility as well as road and traffic
conditions.
When there are sources of light in the area such as street lamps, illuminated signboards,
and traffic signals.
When there are reflective objects in the surrounding area such as reflective plates and
signs.
When visibility is reduced under rain, snow and foggy conditions.
When driving on roads with sharp turn or hilly terrain.
When the headlights/rear lamps of vehicles in front of you or in the opposite lane are dim
or not illuminated.
When there is sufficient darkness such as at dawn or dusk.
When the luggage compartment is loaded with heavy objects.
When visibility is reduced due to a vehicle in front of you spraying water from its tires
onto your windshield.
▼ To Operate the System
The HBC operates to s
witch the headlights
automatically between high and low
beams after the igni tion is switched ON
and the headlight sw itch is in the AUTO
and high beam position.
The HBC determines that it is dark based
on the brightness of the surrounding area.
At the same time, the HBC indicator light
(green) in the instrument cluster
illuminates.

NOTE
When the vehicle speed is about 30 km/h
(19 mph) or more, the headlights
automatically switch to high beams
when there are no vehicles ahead or
approaching in the opposite direction.
When the vehicle speed is less than
about 20 km/h (12 mph), the HBC
switches the headlights to low beams.
The low beams may not switch to high
beams when cornering.
Operation of the HBC function can be
disabled. Refer to Personalization
Features on page 9-9.
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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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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 adjace nt white or yellow lines.
There are various road markings or lane markings of various shapes near an
intersection.
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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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▼Blind Spot Monitoring (BSM) Warni
ng Lights/Blind Spot Monitoring (BSM)
Warning Beep
The BSM or Rear Cross Traffic Al ert (RCTA) system notifies the driver of the presence of
vehicles in adjacent lanes to the rear of your vehicle using th e BSM warning lights and the
warning beep while the s ystems are operational.
BSM warning lights
The BSM warning lights are equi pped on the left and right door mirrors. The warning lights
turn on when a vehicle approaching from the rear in an adjacent lane is detected.
When the ignition is switched ON, the malfunction warning light turns on momentarily and
then turns off after a few seconds.
Forward driving (BSM system operation)
The BSM system detects vehicles approaching from the rear and t urns on the BSM warning
lights equipped on the door mirrors according to the conditions . Additionally, while a BSM
warning light is illuminated, if the turn signal lever is operated to signal a turn in the
direction in which the BSM warni ng light is illuminated, the BSM warning light flashes.
Reverse driving (Rear Cross Traf fic Alert (RCTA) system operation)
The Rear Cross Traffic Alert (RCTA) system detects vehicles app roaching from the left and
right of your vehicle and flashes the BSM warning lights.
Function for cancelling illumination dimmer
If the BSM warning lights turn on when the parking lights are turned on, the brightness of
the BSM warning lights is dimmed.
If the BSM warning lights are d ifficult to see due to glare from surrounding brightness when
traveling on snow-covered roads or under foggy conditions, pres s the dimmer cancellation
button to cancel the dimmer and increase the brightness of BSM warning lights when they
turn on.
Refer to Dashboard Illumination on page 4-16.
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The illumination of the headlights is weakened because of dirt or the optical axis is
deviated.
The windshield is dirty or foggy.
The windshield and camera are fogged (water droplets).
Strong light is directed at the front of the vehicle (such as backlight or high-beam
headlights of on-coming vehicles).
The vehicle is making a sharp turn.
Strong light reflects off the road.
A traffic sign is in a position which makes it difficult to reflect the light from the
vehicle's headlights, such as when the vehicle is driven at night or in a tunnel.
The vehicle is driven under weather conditions such as rain, fog, or snow.
The stored map data for the navigation system is not current.
A traffic sign is obscured by mud or snow.
A traffic sign is concealed by trees or a vehicle.
A traffic sign is partially shaded.
A traffic sign is bent or warped.
A traffic sign is too low or too high.
A traffic sign is too bright or too da rk (including electronic traffic signs).
A traffic sign is too big or too small.
There is an object similar to the traffic sign being read (such as another traffic sign or
other signs resembling it).
The TSR can be set to inoperable.
Refer to Personalization Features on page 9-9.
▼Traffic Sign Display Indication
The following traffic signs are
displayed on the multi-informat ion display.
Speed limit signs
Do not enter signs
Stop signs
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Rear Cross Traffic Alert (RCTA)*
The RCTA system is designed to assist the driver in checking the area to the rear of the
vehicle on both sides while the vehicle is reversing by alertin g the driver to the presence of
vehicles approaching the rear of the vehicle.
The RCTA system detects vehicles approaching from the rear left and right sides of the
vehicle, and the rear of the vehicle while the vehicle is being reversed out of a parking
space, and notifies the driver of possible danger using the Blind Spot Monitoring (BSM)
warning indicator lights and the warning buzzer.
Detection areas
Your vehicle
RCTA operation
1. The RCTA system operates when the shift lever (manual transmi ssion) or the selector
lever (automatic transmission) i s shifted to the reverse (R) po sition.
2. If there is the possibility of a collision with an approaching vehicle, the Blind Spot
Monitoring (BSM) warning indicato r lights flashes and the warning beep is activated
simultaneously.
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(With rear view monitor)
The RCTA warning indication in the rearview monitor also synchronizes with the Blind
Spot Monitoring (BSM) warning indicator light on the door mirro rs.
(With rear view monitor)
WA R N I N G
Always check the surrounding area visually before actually putting the vehicle in reverse:
The system is only designed to assist you in checking for vehicles at the rear when putting the
vehicle in reverse. Due to certain limitations with the operation of this system, the Blind Spot
Monitoring (BSM) warning indicator lights may not flash or it might be delayed even though
a vehicle is behind your vehicl e. Always make it your responsibility as a driver to check the
rear.
NOTE
In the following cases, the Blind Spot Monitoring (BSM) OFF Indicator Light turns on
and operation of the system is stopped. If the Blind Spot Monitoring (BSM) OFF Indicator
Light remains illuminated, have the vehicle inspected at an Authorized Mazda Dealer as
soon as possible.
Some problem with the system including the Blind Spot Monitoring (BSM) warning
indicator lights has occurred.
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).
Driving on snow-covered roads for long periods.
The temperature near the radar sensors becomes extremely hot due to driving for long
periods on slopes during the summer.
When Driving
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