sensor MAZDA MODEL MX-5 MIATA RF 2020 Owner's Manual

With auto-light control
Switch PositionOFFAUTO
Ignition Position ONACC or
OFF ONACC or
OFF ONACC or
OFF ONACC or
OFF
Headlights Off Off
Auto
*2Auto*3Off Off On On*5
Daytime running lights On*1OffOn*4OffOn*1Off Off Off
Taillights
Parking lights
License plate lights
Side-marker lights Off Off
Auto
*2Auto*3OnOn*5OnOn*5
*1 The lights are turned on wh ile the vehicle is driven.*2 The lights are turned on by the auto light function.*3 The lights are turned on continuously if the ignition is switc hed from ON to any other position with the lights
turned on. The lights are turned on for the specified period by the auto headlight off function.
*4 The lights are turned on while t he vehicle is driven, and turned off when the headlights are turned on by the
auto light function.
*5 The lights are turned on for th e specified period by the auto headlight off function.
Auto-light control*
When the headlight switch is in the AUTO position and the ignit ion is switched ON, the
light sensor senses the surrounding lightness or darkness and a utomatically turns the
headlights and other exterior lights on or off.
When Driving
Switches and Controls
4-46*Some models.
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

CAUTION
Do not shade the light sensor by adhering a st icker or a label on the windshield. Otherwise
the light sensor will not operate correctly.
 The light sensor also works as a rain sensor for the auto-wiper control. Keep hands and
scrapers clear of the windshield when the wi per lever is in the AUTO position and the
ignition is switched ON as fingers could be pinched or the wipers and wiper blades could be
damaged when the wipers activa te automatically. If you are going to clean the windshield,
be sure the wipers are turned off completely wh en it is particularly tempting to leave the
engine running. This is particularly important when clearing ice and snow.
NOTE
The headlights, other exterior lights and dashboard illumination may not turn off
immediately even if th e surrounding area becomes we ll-lit because the light sensor
determines that it is night time if the surrounding area is continuously dark for several
minutes such as inside long tunnels, traffic ja ms inside tunnels, or in indoor parking lots.
In this case, the ligh ts turn off if the light switch is turned to the OFF position.
If the headlight switch and the windshield wiper switch are in AUTO, and the wipers are
operated at low or high speed by the auto wi per control for several seconds, bad weather
conditions are determined and the headlights may be turned on.
The sensitivity of the auto-light control may be changed.
Refer to Personalization Features on page 9-9.
When Driving
Switches and Controls
4-47
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

Auto-wiper control*
When the wiper lever is in the AUTO
position, the rain sensor senses the amount
of rainfall on the windshield and turns the
wipers on or off automatically
(off―intermittent―low speed―high
speed).

The sensitivity of the rain sensor can be
adjusted by turning the switch on the
wiper lever.
From the center position (normal), rotate
the switch upward for higher sensitivity
(faster response) or rotate it downward for
less sensitivity (slower response).

Higher sensitivity
Less sensitivitySwitch
Center
position
CAUTION
 Do not shade the rain sensor by adhering
a sticker or a label on the windshield.
Otherwise the rain sensor will not
operate correctly.
When the wiper lever is in the AUTO
position and the ignition is switched ON,
the wipers may move automatically in
the following cases:
 If the windshield above the rain sensor
is touched or wiped with a cloth.
 If the windshield is struck with a hand
or other object from either outside or
inside the vehicle.
Keep hands and scrapers clear of the
windshield when the wiper lever is in the
AUTO position and the ignition is
switched ON as fingers could be pinched
or the wipers and wiper blades damaged
when the wipers activate automatically.
If you are going to clean the windshield,
be sure the wipers are turned off
completely (when it is most likely that the
engine is left running) this is particularly
important when clearing ice and snow.
NOTE
Switching the auto-wiper lever from the
OFF to the AUTO position while driving
activates the windshield wipers once,
after which they operate according to
the rainfall amount.
The auto-wiper control may not operate
when the rain sensor temperature is
about
－10 °C (14 °F) or lower, or
about 85 °C (185 °F) or higher.
If the windshield is coated with water
repellent, the rain sensor may not be
able to sense the amount of rainfall
correctly and the auto-wiper control
may not operate properly.
When Driving
Switches and Controls
*Some models.4-53
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

If dirt or foreign matter (such as ice or
matter containing salt water) adheres to
the windshield above the rain sensor, or
if the windshield is iced, it could cause
the wipers to move automatically.
However, if the wipers cannot remove
this ice, dirt or foreign matter, the
auto-wiper control will stop operation.
In this case, set the wiper lever to the
low speed position or high speed
position for manual operation, or
remove the ice, dirt or foreign matter by
hand to restore the auto-wiper
operation.
If the auto-wiper lever is left in the
AUTO position, the wipers could
operate automatically from the effect of
strong light sources, electromagnetic
waves, or infrared light because the rain
sensor uses an optical sensor. It is
recommended that the auto-wiper lever
be switched to the OFF position other
than when driving the vehicle under
rainy conditions.
If the headlight switch and the
windshield wiper switch are in AUTO,
and the wipers are operated at low or
high speed by the auto wiper control for
several seconds, bad weather conditions
are determined and the headlights may
be turned on.
The auto-wiper control functions can be
turned off. Refer to Personalization
Features on page 9-9.
▼ Windshield Washer
Pull the lever toward you and hold it to
spray washer fluid.

Washer
OFF
NOTE
If the windshield wash
er is turned on when
the windshield wipers are not operating,
the windshield wipers operate a few times.
If the washer does no t work, inspect the
fluid level (page 6-27). If the fluid level
is normal, consult a n Authorized Mazda
Dealer.
When Driving
Switches and Controls
4-54
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

i-ACTIVSENSE*
i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support
systems which make use of a Forward Sensing Camera (FSC) and radar sensors. These
systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer drivin g by reducing the load on the
driver and helping to avert collisions or reduce their severity . However, because each system
has its limitations, always drive carefully and do not rely sol ely on the systems.
▼Active Safety Technology
Active Safety Technology supports safer driving by helping the
driver to recognize potential
hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Adaptive Front Lighting System (AFS)..................................................................... page 4-77
High Beam Control System (HBC)............................................................................ page 4-78
Left/right side and rear side detection
Lane Departure War ning System (LDWS)........................... ......................................page 4-81
Blind Spot Monitoring (BSM).................................... ............................................... page 4-87
Road sign recognition
Traffic Sign Recognition System (TSR).......................... .......................................... page 4-92
Rear obstruction detection wh en leaving a parking space
Rear Cross Traffic Alert (RCTA)................................ ............................................... page 4-98
▼Pre-Crash Safety Technology
Pre-crash safety technology is de
signed to assist the driver in averting collisions or reduce
their severity in situations where they cannot be avoided.
Collision damage reduction in low vehicle speed range
Forward driving
Smart City Brake Support (SCBS)................................ .......................................... page 4-101
When Driving
i-ACTIVSENSE
*Some models.4-75
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

▼Camera and Sensors
Forward sensing camera (FSC)
The Forward Sensing Camera (FSC) determines the conditions ahea
d of the vehicle while
traveling at night and detects traffic lanes. The following systems also use the Forward
Sensing Camera (FSC).
High Beam Control system (HBC)
Lane Departure Warning System (LDWS)
Traffic Sign Recognition System (TSR)
Smart City Brake Support (SCBS)
The Forward Sensing Camera (FSC) is installed at the top of the windshield near the
rearview mirror.
Refer to Forward Sensing Camera (FSC) on page 4-105.
Radar sensors (rear)
The radar sensors (rear) function by detecting the radio waves reflected off a vehicle
approaching from the rear or an obstruction sent from the radar sensors. The following
systems also use the radar sensors (rear).
Blind Spot Monitoring (BSM)
Rear Cross Traffic Alert (RCTA)
The radar sensors (rear) are inst alled inside the rear bumper, one each on the left and right
sides.
Refer to Radar S ensors (Rear) on page 4-109.
When Driving
i-ACTIVSENSE
4-76
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

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).
When Driving
i-ACTIVSENSE
4-88
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

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.
When Driving
i-ACTIVSENSE
4-89
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

NOTE
Speed limit signs
When the vehicle speed is about 1 km/h (0.6 mph) or faster, the speed limit sign is
displayed when any one of the following conditions are met.
The Forward Sensing Camera (FSC) recognizes a speed limit sign as a sign targeted for
your vehicle and the vehicle passes it.
The speed limit sign stored in the navigation system is read (if the Forward Sensing
Camera (FSC) does not recognize a speed limit sign).
In the following cases, display of the speed limit sign stops.
The Forward Sensing Camera (FSC) recognizes the speed limit sign and the vehicle is
driven for a certain distance after passing the sign.
Each sensor determines that the vehicle has changed direction of travel.
The Forward Sensing Camera (FSC) recognizes a new speed limit sign which differs
from the previous one (displays the new speed limit sign).
The speed limit sign stored in the navigation system is not read within a certain period
of time (if the Forward Sensing Camera (FSC) does not recognize a speed limit sign,
the speed limit sign stored in the navigation system is displayed).
The vehicle speed exceeds the displayed speed limit sign by 30 km/h (19 mph) or more
after a certain period of time has elapsed since the speed limit sign was displayed.
(Except when there is information for the speed limit sign in the navigation system)
Do not enter signs
A do not enter sign is displayed when all of the following conditions are met.
The vehicle speed is about 60 km/h (37 mph) or slower.
The Forward Sensing Camera (FSC) recognizes a do not enter sign as a sign targeted
for your vehicle and the vehicle passes it.
When the Forward Sensing Camera (FSC) recognizes the do not enter sign and a certain
period of time has elapsed since the vehicle passed the sign, display of the do not enter
sign stops.
Stop sign
A stop sign is displayed when all of the following conditions are met:
The vehicle speed is about 30 km/h (19 mph) or slower.
The Forward Sensing Camera (FSC) recognizes a stop sign as a sign targeted for your
vehicle.
When a certain period of time has elapsed since the stop sign was displayed, display of
the stop sign stops.
When Driving
i-ACTIVSENSE
4-95
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06

(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
i-ACTIVSENSE
4-99
MX-5_8JA4-EA-19K_Edition1_old 2019-8-29 16:18:06