warning light MAZDA MODEL MX-5 MIATA 2020 Repair Manual

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
ï‚·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.
ï‚·Some problem with the system including the Blind Spot Monitoring (BSM) warning
indicator lights has occurred.
ï‚·A large deviation in the installation position of a radar sensor (rear) on the vehicle has
occurred.
ï‚·There is a large accumulation of snow or ice on the rear bumper near a radar sensor
(rear).
ï‚·Driving on snow-covered roads for long periods.
ï‚·The temperature near the radar sensors becomes extremely hot due to driving for long
periods on slopes during the summer.
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ï‚·The battery voltage has decreased.
ï‚·Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.
ï‚·The vehicle speed when reversing is about 10 km/h (6.3 mph) or faster.
ï‚·The radar sensor (rear) detection area is obstructed by a nearby wall or parked vehicle.
(Reverse the vehicle to a position where the radar sensor detection area is no longer
obstructed.)
Your vehicle
ï‚·A vehicle is approaching directly from the rear of your vehicle.
Your vehicle
ï‚·The vehicle is parked at an angle.
Your vehicle
ï‚·Directly after the Blind Spot Monitoring (BSM) system becomes operable using the
personalization feature.
ï‚·Radio wave interference from a radar sensor equipped on a nearby parked vehicle.
ï‚·In the following cases, it may be difficult to view the illumination/flashing of the Blind
Spot Monitoring (BSM) warning indicator lights equipped on the door mirrors.
ï‚·Snow or ice adheres to the door mirrors.
ï‚·The door glass is fogged or covered in snow, frost or dirt.
ï‚·Turn off the RCTA system while pulling a trailer or while an accessory such as a bicycle
carrier is installed to the rear of the vehicl e. Otherwise, the radio waves emitted by the
radar will be blocked causing the system to not operate normally.
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CAUTION
In the following cases, turn the system off to prevent a mis-operation:
The vehicle is being towed or when towing another vehicle.
 The vehicle is on a chassis roller.
 When driving on rough roads such as in areas of dense grass or off-road.
Refer to Stopping the Smart City Brake Support (SCBS) system Operation on page 4-104 on
how to turn off the SCBS system.
NOTE
ï‚·The SCBS system will operate under the following conditions.
ï‚·The engine is running.
ï‚·The Smart City Brake Support (SCBS) system warning indication/warning light (amber)
does not illuminate.
ï‚·(Rear-end coll ision warning)
The vehicle speed is about 4 to 80 km/h (2 to 50 mph).
ï‚·(Brake control (Smart City Brake Support (SCBS) brake))
The vehicle speed is about 4 to 30 km/h (2 to 18 mph).
ï‚·The SCBS system is not turned off.
ï‚·Under the following conditions, the SCBS system may not operate normally:
ï‚·The SCBS system will not operate if the driver is deliberately performing driving
operations (accelerator pedal and steering wheel).
ï‚·If there is the possibility of pa rtial contact with a vehicle ahead.
ï‚·The vehicle is driven on a slippery road surface such as wet roads or icy or snow-bound
roads.
ï‚·The braking performance is adversely affected due to cold temperatures or wet brakes.
ï‚·The vehicle is driven at the same speed as the vehicle ahead.
ï‚·The accelerator pedal is depressed.
ï‚·The brake pedal is depressed.
ï‚·The steering wheel is being operated.
ï‚·The selector lever is being operated.
ï‚·In the following cases, the Forward Sensing Camera (FSC) determines that there is a
vehicle ahead and the SCBS may operate.
ï‚·Objects on the road at the entrance to a curve.
ï‚·Vehicles passing in the opposite lane while making a curve.
ï‚·Metal objects, bumps, or protruding objects on the road.
ï‚·When passing through a toll gate.
ï‚·When passing through low gates, narrow gates, car washing machines, or tunnels.
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ï‚·If you suddenly come close to a vehicle ahead.
ï‚·2-wheeled vehicles, pedestrians, animals or standing trees.
ï‚·Vehicle is driven with some of the tires having significant wear.
ï‚·(Manual transmission)
If the vehicle is stopped by the Smart City Brake Support (SCBS) operation and the clutch
pedal is not depressed, the engine stops.
â–¼Smart City Brake Support (SCBS)
Indicator Light (Red)*
If the Smart City Bra
ke Support (SCBS) is
operating, the indicator light (red) flashes.

â–¼ Collision Warning*
If there is the possibili
ty of a collision with
a vehicle ahead, the beep sounds
continuously and a warning is indicated in
the multi-inform ation display.
NOTE
The operation distance and volume of the
collision warning can be changed. Refer
to Personalization Features on page
9-9.
â–¼Automatic Brake Operation
Display*
The automatic brake operation display is
indicated on the multi-information display
after the SCBS is operated.
NOTE
ï‚·The collision warning beep sounds
intermittently while the SCBS brake or
brake assist (SCBS brake assist) is
operating.
ï‚·If the vehicle is stopped by the SCBS
operation and the brake pedal is not
depressed, the warning beep sounds 1
time after about 2 seconds and the SCBS
brake is automatically released.
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Heed the following cautions to assure the correct operation of the Forward Sensing Camera
(FSC).
 Be careful not to scratch the Forward Sensing Camera (FSC) lens or allow it to get dirty.
 Do not remove the Forward Sensing Camera (FSC) cover.
 Do not place objects on the dashboard which reflect light.
 Always keep the windshield glass around the camera clean by removing dirt or fogging.
Use the windshield defroster to remove fogging on the windshield.
 Consult an Authorized Mazda Dealer regardi ng cleaning the interior side of the
windshield around the Forw ard Sensing Camera (FSC).
 Consult an Authorized Mazda Dealer before performing repairs around the Forward
Sensing Camera (FSC).
 The Forward Sensing Camera (FSC) is installe d to the windshield. Consult an Authorized
Mazda Dealer for windshield repair and replacement.
 When cleaning the wind shield, do not allow glass cleaners or similar cleaning fluids to
get on the Forward Sensing Camera (FSC) le ns. In addition, do not touch the Forward
Sensing Camera (FSC) lens.
 When performing repairs around the rearv iew mirror, consult an Authorized Mazda
Dealer.
 Consult an Authorized Mazda Dealer regarding cleaning of the camera lens.
 Do not hit or apply strong force to the Forward Sensing Camera (FSC) or the area around
it. If the Forward Sensing Camera (FSC) is severely hit or if there are cracks or damage
caused by flying gravel or debris in the area around it, stop using the following systems
and consult an Authorized Mazda Dealer.
 High Beam Control System (HBC)
 Lane Departure Warning System (LDWS)
 Traffic Sign Recognition System (TSR)
 Smart City Brake Support (SCBS)
 The direction in which the Forward Sensing Camera (FSC) is pointed has been finely
adjusted. Do not change the installation posi tion of the Forward Sensing Camera (FSC) or
remove it. Otherwise, it could result in damage or malfunction.
 Always use tires for all wheels that are of the specified size, and the same manufacturer,
brand, and tread pattern. In addition, do no t use tires with significantly different wear
patterns on the same vehicle as the system may not operate normally.
 The Forward Sensing Camera (FSC) includes a function for detecting a soiled windshield
and informing the driver, however, depending on the conditions, it may not detect plastic
shopping bags, ice or snow on the windshield. In such cases, the system cannot accurately
determine a vehicle ahead and may not be able to operate normally. Always drive carefully
and pay attention to the road ahead.
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ï‚·You change lanes and approach a vehicle ahead.
ï‚·When driving extremely close to the target object.
ï‚·Tire chains or a temporary spare tire is installed.
ï‚·The vehicle ahead has a special shape. For example, a vehicle towing a trailer house or
a boat, or a vehicle carrier carrying a vehicle with its front pointed rearward.
ï‚·If the Forward Sensing Camera (FSC) cannot operate normally due to backlight or fog,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warning lights turn on. However, this does not indicate a
malfunction.
ï‚·High Beam Control System (HBC) warning light (amber)
ï‚·Lane Departure Warning System (LDW S) warning indication/warning light
ï‚·Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
ï‚·If the Forward Sensing Camera (FSC) cannot operate normally due to high temperatures,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warn ing lights turn on. However, this does not indicate a
malfunction. Cool down the area around the Forward Sensing Camera (FSC) such as by
turning on the air conditioner.
ï‚·High Beam Control System (HBC) warning light (amber)
ï‚·Lane Departure Warning System (LDW S) warning indication/warning light
ï‚·Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
ï‚·If the Forward Sensing Camera (FSC) detects that the windshield is dirty or foggy, the
system functions related to the Forward Sensing Camera (FSC) are temporarily stopped
and the following warning lights turn on. Ho wever, this does not indicate a problem.
Remove the dirt from the windshield or press the defroster switch and defog the
windshield.
ï‚·High Beam Control System (HBC) warning light (amber)
ï‚·Lane Departure Warning System (LDW S) warning indication/warning light
ï‚·Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
ï‚·If there are recognizable cracks or damage caused by flying gravel or debris on the
windshield, always have the windshield replaced. Consult an Authorized Mazda Dealer
for replacement.
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Tire Pressure Monitoring System
The Tire Pressure Monitoring System (TPMS) monitors the pressure for each tire.
If tire pressure is to o low in one or more tires, the system will inform the driver via the
warning light in the instrument cluster and by the warning beep sound.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspected on page 7-36.
Refer to Taking Action on page 7-40.
Refer to Tire Inflation Pressu re Warning Beep on page 7-50.

The tire pressure sensors installed on each wheel send tire pre ssure data by radio signal to
the receiver unit in the vehicle.
Tire pressure sensors
NOTE
When the ambient temperature is low due to seasonal changes, tire temperatures are also
lower. When the tire temperature decreases, the air pressure decreases as well. The TPMS
warning light may illumina te more frequently. Visually inspect the tires daily before driving,
and check tire pressures monthly with a tire pressure gauge. When checking tire pressures,
use of a digital tire pressure gauge is recommended.

TPMS does not alleviate your need to check the pressure and con dition of all four tires
regularly.
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â–¼System Error Activation
When the warning light flashes, there may
be a system malfunction. Consult an
Authorized Mazda Dealer.
A system error activation may occur in the
following cases:
ï‚·When there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors.
ï‚·When a metallic device such as a
non-genuine navigation system is
equipped near the center of the
dashboard, which may block radio
signals from the tire pressure sensor to
the receiver unit.
ï‚·When using the following devices in the
vehicle that may cause radio
interference with the receiver unit.
ï‚·A digital device such as a personal
computer.
ï‚·A current converter device such as a
DC-AC converter.
ï‚·When excess snow or ice adheres to the
vehicle, especially around the wheels.
ï‚·When the tire pressu
re sensor batteries
are exhausted.
ï‚·When using a wheel with no tire
pressure sensor installed.
ï‚·When using tires with steel wire
reinforcement in the sidewalls.
ï‚·When using tire chains.
â–¼ Tires and Wheels
CAUTION
When inspecting or adjusting the tire air
pressures, do not apply excessive force to
the stem part of the wheel unit. The stem
part could be damaged.
Changing tires and wheels
The following procedure allows the TPMS
to recognize a tire pressure sensor's unique
ID signal code whenever tires or wheels
are changed, such as changing to and from
winter tires.
NOTE
Each tire pressure sensor has a unique ID
signal code. The signal code must be
registered with the TPMS before it can
work. The easiest way to
do it is to have
an Authorized Mazda Dealer, change your
tire and complete ID signal code
registration.
When having tires changed at an
Authorized Mazda Dealer
When an Authorized Mazda Dealer,
changes your vehicle's tires, they will
complete the tire pressure sensor ID signal
code registration.

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When changing tires yourself
If you or someone else changes tires, you
or someone else can also undertake the
steps for the TPMS to complete the ID
signal code registration.
1. After tires have been changed, switchthe ignition ON, then back to ACC or
OFF.
2. Wait for about 15 minutes.
3. After about 15 minutes, drive the vehicle at a speed of at least 25 km/h
(16 mph) for 10 minutes and the tire
pressure sensor ID s ignal code will be
registered automatically.
NOTE
If the vehicle is driven within about 15
minutes of changing tires, the tire pressure
monitoring system warning light will flash
because the sensor ID signal code would
not have been registered. If this happens,
park the vehicle fo r about 15 minutes,
after which the sensor ID signal code will
register upon driving the vehicle for 10
minutes.
Replacing tires and wheels
CAUTION
 When replacing/repairing the tires or
wheels or both, have the work done by
an Authorized Mazda Dealer, or the tire
pressure sensors may be damaged.
 The wheels equipped on your Mazda are
specially designed for installation of the
tire pressure sensors. Do not use
non-genuine wheels, otherwise it may
not be possible to install the tire pressure
sensors.
Be sure to have the ti re pressure sensors
installed whenever tires or wheels are
replaced.
When having a tire or wheel or both
replaced, the following types of tire
pressure sensor installations are possible.
ï‚·The tire pressure sensor is removed
from the old wheel and installed to the
new one.
ï‚·The same tire pressu re sensor is used
with the same wheel. Only the tire is
replaced.
ï‚·A new tire pressure sen sor is installed to
a new wheel.
NOTE
ï‚·The tire pressure sensor ID signal code
must be registered when a new tire
pressure sensor is purchased. For
purchase of a tire pressure sensor and
registration of the tire pressure sensor
ID signal code, consult an Authorized
Mazda Dealer.
ï‚·When reinstalling a previously removed
tire pressure sensor to a wheel, replace
the grommet (seal between valve body/
sensor and wheel) for the tire pressure
sensor.
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