2020 MAZDA MODEL 3 HATCHBACK height

Forward Sensing Camera(FSC)
*
▼Forward Sensing Camera (FSC)
Your vehicle is equipped with a Forward
Sensing Camera (FSC). The Forward
Sensing Camera (FSC) is positioned near
the rearview mirro
r and used by the
following systems.
High Beam Control System (HBC)
Lane Departure Warning System
(LDWS)
Traffic Sign Recognition System (TSR)
Distance & Speed Alert (DSA)
Driver Attention Alert (DAA)
Driver Monitoring (DM)
Mazda Radar Cruise Control (MRCC)
Mazda Radar Cruise Control with Stop
& Go function (MRCC with Stop & Go
function)
Lane-keep Assist System (LAS)
Traffic Jam Assist (TJA)
Smart Brake Support (SBS)
1. Forward Sensing Camera (FSC)

The Forward Sensing Camera (FSC)
determines the conditions ahead of the
vehicle while traveling at night and detects
traffic lanes. The distance in which the
Forward Sensing Camera (FSC) can detect
objects varies depending on the
surrounding conditions.
WA R N I N G
Do not modify the suspension:
If the vehicle height or inclination is
changed, the system will not be able to
correctly detect vehicles ahead. This will
result in the system not operating normally
or mistakenly operating, which could cause
a serious accident.
CAUTION
 Do not apply accessories, stickers or film
to the windshield near the Forward
Sensing Camera (FSC).
If the area in front of the Forward
Sensing Camera (FSC) lens is obstructed,
it will cause the system to not operate
correctly. Consequently, each system
may not operate normally which could
lead to an unexpected accident.
 Do not disassemble or modify the
Forward Sensing Camera (FSC).
Disassembly or modification of the
Forward Sensing Camera (FSC) will cause
a malfunction or mistaken operation.
Consequently, each system may not
operate normally which could lead to an
unexpected accident.
 Heed the following cautions to assure
the correct operation of the Forward
Sensing Camera (FSC).
When Driving
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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 windsh ield. 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.
NOTE
In the following cases, the Forward
Sensing Camera (FSC) cannot detect
target objects correctly, and each system
may be unable to operate normally.
The height of the vehicle ahead is low.
You drive your vehicle at the same
speed as the vehicle ahead.
Headlights are not turned on during
the night or when going through a
tunnel.
In the following cases, the Forward
Sensing Camera (FSC) may not be able
to detect target objects correctly.
Under bad weather condition, such as
rain, fog and snow.
The window washer is being used or
the windshield wipers are not used
when it's raining.
Ice, fog, snow, frost, rainfall, dirt, or
foreign matter such as a plastic bag is
stuck on the windshield.
Trucks with low lo ading platforms and
vehicles with an extremely low or high
profile.
When driving next to walls with no
patterning (including fences and
longitudinally striped walls).
The taillights of the vehicle ahead are
turned off.
A vehicle is outside the illumination
range of the headlights.
The vehicle is making a sharp turn, or
ascending or descending a steep
slope.
Entering or exiting a tunnel.
Heavy luggage is loaded causing the
vehicle to tilt.
Strong light is shone at the front of the
vehicle (back light or high-beam light
from on-coming vehicles).
There are many light emitters on the
vehicle ahead.
When the vehicle ahead is not
equipped with taillights or the
taillights are turned off at nighttime.
Elongated luggage or cargo is loaded
onto installed roof rails and covers
the Forward Sensing Camera (FSC).
Exhaust gas from the vehicle in front,
sand, snow, and water vapor rising
from manholes and grating, and water
splashed into the air.
When towing a malfunctioning
vehicle.
The vehicle is driven with tires having
significantly different wear.
The vehicle is driven on down slopes
or bumpy roads.
There are water puddles on the road.
The surroundings are dark such as
during the night, early evening, or
early morning, or in a tunnel or
indoor parking lot.
The illumination brightness of the
headlights is reduced or the headlight
illumination is weakened due to dirt
or a deviated optical axis.
When Driving
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The target object enters the blind spot
of the Forward Sensing Camera
(FSC).
A person or object bursts onto the
road from the shoulder or cuts right in
front of you.
You change lanes and approach a
vehicle ahead.
When driving extremely close to the
target object.
Tire chains or a temporary spare tire
is installed.
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.
If the Forward Sensing Camera (FSC)
cannot operate normally due to rain,
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.
High Beam Control System (HBC)
warning indication/warning light
(amber)
i-ACTIVSENSE warning indication/
warning light
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 warning 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.
High Beam Control System (HBC)
warning indication/warning light
(amber)
i-ACTIVSENSE warning indication/
warning light
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. However, this
does not indicate a problem. Remove the
dirt from the windshield or press the
defroster switch and defog the
windshield.
High Beam Control System (HBC)
warning indication/warning light
(amber)
i-ACTIVSENSE warning indication/
warning light
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.
The Forward Sensing Camera (FSC)
recognizes pedestrians when all of the
following conditions are met:
The height of a pedestrian is about 1
to 2 meters.
An outline such as the head, both
shoulders, or the legs can be
determined.
In the following cases, the Forward
Sensing Camera (FSC) may not be able
to detect target objects correctly:
Multiple pedestrians are walking, or
there are groups of people.
When Driving
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CAUTION
Heed the following precautions to assure
correct operation of each system.
Do not adhere stickers (including
transparent stickers) to the surface of the
radiator grille and front emblem in and
around the front radar sensor, and do
not replace the radiator grille and front
emblem with any product that is not a
genuine product designed for use with
the front radar sensor.
 The front radar sensor includes a
function for detecting soiling of the radar
sensor's front surface and informing the
driver, however, depending on the
conditions, it may require time to detect
or it may not detect plastic shopping
bags, ice or snow. If this occurs, the
system may not operate correctly,
therefore always keep the front radar
sensor clean.
 Do not install a grille guard.
 If the front part of the vehicle has been
damaged in a vehicle accident, the
position of the front radar sensor may
have moved. Stop the system
immediately and always have the vehicle
inspected at an Authorized Mazda
Dealer.
 Do not use the front bumper to push
other vehicles or obstructions such as
when pulling out of a parking space.
Otherwise, the front radar sensor could
be hit and its position deviated.
 Do not remove, disa ssemble, or modify
the front radar sensor.
 For repairs, replacement or paint work
around the front radar sensor, consult an
Authorized Mazda Dealer.
Do not modify the suspension. If the
suspension are modified, the vehicle's
posture could change and the front
radar sensor may not be able to correctly
detect a vehicle ahead or an obstruction.
NOTE
Under the following co nditions, the front
radar sensor may not be able to detect
vehicles ahead or obstructions correctly
and each system may not operate
normally.
The rear surface of a vehicle ahead
does not reflect radio waves
effectively, such as an unloaded
trailer or an automobile with a
loading platform covered by a soft
top, vehicles with a hard plastic
tailgate, and round-shaped vehicles.
Vehicles ahead with low vehicle height
and thus less area for reflecting radio
waves.
Visibility is reduced due to a vehicle
ahead casting off water, snow, or sand
from its tires and onto your
windshield.
The trunk/luggage compartment is
loaded with heavy objects or the rear
passenger seats are occupied.
Ice, snow, or soiling is on the front
surface of the front emblem.
During inclement weather such as
rain, snow, or sand storms.
When driving near facilities or objects
emitting strong radio waves.
Under the following co nditions, the front
radar sensor may not be able to detect
vehicles ahead or obstructions.
The beginning and end of a curve.
Roads with continuous curves.
When Driving
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NOTE
The detection ability of the front side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
The front bumper near the front side
radar sensor has become deformed.
Snow, ice or mud adheres to the front
side radar sensor on the front bumper.
Under bad weather conditions such as
rain, snow and fog.
Under the following conditions, the front
side radar sensor cannot detect target
objects or it may be difficult to detect
them.
Small motorcycles, bicycles,
pedestrians, animals, shopping carts,
and stationary objects on a road or a
road side.
Vehicle shapes which do not reflect
radar waves well such as empty
trailers with a low vehicle height and
sports cars.
Vehicles are shipped with the direction
of the front side radar sensor adjusted
for each vehicle to a loaded vehicle
condition so that the front side radar
sensor detect approaching vehicles
correctly. If the direction of the front
side radar sensor has deviated for some
reason, have the vehicle inspected at an
Authorized Mazda Dealer.
For repairs or replacement of the front
side radar sensor, or bumper repairs,
paintwork, and replacement near the
radar sensors, consult an Authorized
Mazda Dealer.
The radar sensors are regulated by the
relevant radio wave laws of the country
in which the vehicle is driven. If the
vehicle is driven abroad, authorization
from the country in which the vehicle is
driven may be required.
When Driving
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Rear Side Radar Sensor*
▼Rear Side Radar Sensor
Your vehicle is equipped with rear side
radar sensor. The following systems also
use the rear side radar sensor.
Blind Spot Monitoring (BSM)
Rear Cross Traffic Alert (RCTA)
Smart Brake Support [Rear Crossing]
(SBS-RC)
The rear side radar sensor function by
detecting the radio waves reflected off a
vehicle approaching from the rear or an
obstruction sent from the radar sensor.
4–Door
1. Rear side radar sensor

5–Door
1. Rear side radar sensor

The rear side radar sensor are installed
inside the rear bumper, one each on the
left and right sides.
Always keep the surface of the rear
bumper near the rear side radar sensor
clean so that the rear side radar sensor
operate normally. Also, do not apply items
such as stickers.
Refer to Exterior Care on page 6-44.
CAUTION
If the rear bumper receives a severe impact,
the system may no longer operate
normally. Stop the system immediately and
have the vehicle inspected at an
Authorized Mazda Dealer.
NOTE
The detection ability of the rear side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
The rear bumper near the rear side
radar sensor has become deformed.
Snow, ice or mud adheres to the rear
side radar sensor on the rear bumper.
Under bad weather conditions such as
rain, snow and fog.
Under the following conditions, the rear
side radar sensor cannot detect target
objects or it may be difficult to detect
them.
Small motorcycles, bicycles,
pedestrians, animals, shopping carts,
and stationary objects on a road or a
road side.
Vehicle shapes which do not reflect
radar waves well such as empty
trailers with a low vehicle height and
sports cars.
When Driving
i-ACTIVSENSE
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3. Grasp the support rod in the paddedarea and secure it in the support rod
hole indicated by the arrow to hold the
hood open.

1. Pad
2. Support rod
▼Closing the Hood
1. Check under the hood area to make
certain all filler caps are in place and
all loose items (e.g. tools, oil
containers, etc.) have been removed.
2. Lift the hood, grasp the padded area onthe support rod, and secure the support
rod in the clip. Ve rify that the support
rod is secured in the clip before closing
the hood.

1. Clip

3. Lower the hood slowly to a height of about 20 cm (7.9 in) above its closed
position and then let it drop.
CAUTION
When closing the hood, do not push it
excessively such as by applying your
weight. Otherwise, the hood could be
deformed.
Maintenance and Care
Owner Maintenance
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The temporary spare tire has a tread life
of less than 5,000 km (3,000 miles). The
tread life may be shorter depending on
driving conditions.
 The temporary spare tire is for limited
use, however, if the tread wear
solid-band indicator appears, replace the
tire with the same type of temporary
spare (page 6-33).
NOTE
Tires degrade over time, even when they
are not being used on the road. It is
recommended that tires generally be
replaced when they are 6 years or older.
Heat caused by hot climates or frequent
high loading conditions can accelerate the
aging process. You should replace the
spare tire when you replace the other road
tires due to the aging of the spare tire. The
period in which the tire was manufactured
(both week and year) is indicated by a
4-digit number.
Refer to Tire Labeling on page 8-23.
▼ Replacing a Wheel
WA R N I N G
Always use wheels of the correct size on
your vehicle:
Using a wrong-sized wheel is dangerous.
Braking and handling could be affected,
leading to loss of control and an accident.
CAUTION
A wrong-sized wheel may adversely
affect:
 Tire fit
 Wheel and bearing life
Ground clearance
 Snow-chain clearance
 Speedometer calibration
 Headlight aim
 Bumper height
 Tire Pressure Monitoring System
NOTE
When replacing a wheel, make sure the
new one is the same as the original
factory wheel in diameter, rim width,
and offset (inset/outset).
For details, contact an Authorized
Mazda Dealer.

Proper tire balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tires can cause
vibration and uneven wear, such as
cupping and flat spots.
Maintenance and Care
Owner Maintenance
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