sensor MAZDA MODEL 3 HATCHBACK 2018 (in English) Workshop Manual

When selecting heat, the system will
restrict airflow until it has warmed to
prevent cold air from blowing out of the
vents.
▼Windshield Defrosting and
Defogging
Press the windshield defroster switch.
In this position, the outside air position is
automatically selected, and the air
conditioner automatically turns on. The air
conditioner will dire
ctly dehumidify the
air to the front windshield and side
windows on page 5-4.
Airflow amount will be increased.
WA R N I N G
Set the temperature control to the hot or
warm position when defogging (
position):
Using the
position with the temperature
control set to the cold position is dangerous
as it will cause the outside of the
windshield to fog up. Your vision will be
hampered, which could lead to a serious
accident.
NOTE
Use the temperature control dial to
increase the air flow temperature and
defog the windshield more quickly.
▼ Sunlight/Temperature Sensor
Sunlight sensor
Do not place objects on the sunlight
sensor. Otherwise, the interior temperature
may not adjust correctly.
Sunlight sensor
Interior temperature sensor
Do not cover the interior temperature
sensor. Otherwise, the interior temperature
may not adjust correctly.
Interior temperature sensor
Interior Features
Climate Control System
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Wiper Blades
CAUTION
Hot waxes applied by automatic car
washers have been known to
affect the
wiper's ability to clean windows.
 To prevent damage to the wiper blades,
do not use gasoline, kerosene, paint
thinner, or other solvents on or near
them.
 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.
 If the windshield above the rain sensor
is wiped with a cloth.
 If the windshield is struck with a hand
or other object.
 If the rain sensor is struck with a hand
or other object from inside the vehicle.
Be careful not to pinch hands or fingers
as it may cause injury, or damage the
wipers. When washing or servicing the
vehicle, make sure the wiper lever is in
the OFF position.
Contamination of either the windshield or
the blades with foreign matter can reduce
wiper effectiveness. Common sources are
insects, tree sap, and hot wax treatments
used by some commercial car washes.

If the blades are not wiping properly, clean
the window and blades with a good
cleaner or mild detergent; then rinse
thoroughly with clean water. Repeat if
necessary.
▼ Replacing Windshield Wiper Blades
When the wipers no longer clean well, the
blades are probably worn or cracked.
Replace them.
CAUTION
To prevent damage to the wiper arms and
other components, do not try to sweep the
wiper arm by hand.
NOTE
When raising both windshield wiper arms,
raise the driver's side wiper arm first.
When lowering the wiper arms, slowly
lower the wiper arm from the passenger's
side first while supporting it with your
hand. Forcefully lowering the wiper arms
could damage the wiper arm and blade,
and may scratch or crack the windshield.
1. Raise the wiper arm.
2. Open the clip and slide the blade
assembly in the direction of the arrow.
Maintenance and Care
Owner Maintenance
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Wa t e r M a r k s
Occurrence
Rain, fog, dew, and even tap water can
contain harmful minerals such as salt and
lime. If moisture containing these minerals
settles on the vehicle and evaporates, the
minerals will concentrate and harden to
form white rings. The rings can damage
your vehicle's finish.
Prevention
It is necessary to wash and wax your
vehicle to preserve its finish according to
the instructions in this section. These steps
should be taken immediately after you find
water marks on your vehicle's finish.
Paint Chipping
Occurrence
Paint chipping occurs when gravel thrown
in the air by another vehicle's tires hits
your vehicle.
How to avoid paint chipping
Keeping a safe distance between you and
the vehicle ahead reduces the chances of
having your paint chipped by flying
gravel.
NOTE
The paint chipping zone varies with the
speed of the vehicle. For example, when
traveling at 90 km/h (56 mph), the paint
chipping zone is 50 m (164 ft).
In low temperatures a vehicle's finish
hardens. This increases the chance of
paint chipping.
Chipped paint can lead to rust forming
on your Mazda. Before this happens,
repair the damage by using Mazda
touch-up paint according to the
instructions in this section. Failure to
repair the affected area could lead to
serious rusting and expensive repairs.

Follow all label and container directions
when using a chemical cleaner or polish.
Read all warnings and cautions.
▼ Maintaining the Finish
Wa s h i n g
CAUTION

When the wiper lever is in the
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
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.
Maintenance and Care
Appearance Care
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SignalWarning
Blind Spot Monitor-
ing (BSM) OFF In-
dicator Light
*
A problem in the system may be in dicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer.
The light does not tur n on when the ignition is switched ON.The light remains on even when the Blind Spot Monitoring (BSM) system can be operat-
ed.
The light turns on while driving the vehicle.
NOTE
If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause (The Blin d Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). However, it does not indicate a malfunction.
(Amber)
Mazda Radar Cruise
Control (MRCC)
Wa r n i n g L i g h t
*
The “Front radar sensor system m alfunction” is displayed if there is a malfunction in the
system while the Mazda Radar Crui se Control (MRCC) system is on. Have your vehicle
inspected at an Authorized Mazda Dealer.
(Turns on)
Lane-keep Assist System (LAS) & Lane Departure
Wa r n i n g S y s t e m
(LDWS) Warning
Light
*
The warning light turns on if the system has a malfunction. Hav e your vehicle inspected
at an Authorized Mazda Dealer.
CAUTION
 Always use tires for all wheels that are of the specified size, and the same manufacture,
brand, and tread pattern. In a ddition, do not use tires with
significantly
different wear
patterns on the same vehicle. If such improper tires are used, the system may not operate
normally.
 When an emergency spare tire is used, the system may not operate normally.
LED Headlight
Wa r n i n g L i g h t*
This light illuminates if there i s a malfunction in the LED hea dlight. Have your vehicle
inspected by an Authorized Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning Action to be taken
Smart Brake
Support/
Smart City
Brake Sup- port (SBS/
SCBS)Smart City Brake Support(SCBS)
Wa r n i n g
Light
*
The light turns on if the windshield or the radar
sensor are dirty, or there is a malfunction in the
system. The light turns on if the windshield is
dirty or there is a ma lfunction in the system. Verify the reason why the warning light is illu-
minated on the center display.
If the reason why the warning light is illuminat-
ed is due to a dirty windshield, clean the wind-
shield.
If the warning light is illuminated because of a
dirty radar sensor, cl
ean the front emblem.
For any other reasons, have the vehicle inspect-
ed at an Authorized Mazda Dealer.
Low Fuel Wa r n i n g Light The light turns on when the remaining fuel is
about 9.0 L (2.3 US gal, 1.9 Imp gal).NOTE
The light illumination tim
ing may vary because
fuel inside the fuel tank moves around accord-
ing to the driving conditions and the vehicle
posture. Add fuel.
Check Fuel
Cap Warning Light If the check fuel cap warning light illuminates
while driving, the fuel-f
iller cap may not be in-
stalled properly. Stop the engine and reinst
all the fuel-filler cap.
Refer to Fuel-Filler Cap on page 3-29
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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SignalWarning Action to be taken
Seat Belt
Wa r n i n g Light Except Mexico
The seat belt warning light turns on if the driver
or front passenger's seat is occupied and the seat
belt is not fastened with the ignition switched
ON.
If the driver or front pa
ssenger's seat belt is un-
fastened (only when the front passenger's seat is
occupied) and the vehicle is driven at a speed
faster than about 20 km/h (12 mph), the warn-
ing light flashes. After a short time, the warning
light stops flashing, but remains illuminated.
NOTE
The warning light flashes for about 6 seconds
if the driver's seat belt is not fastened when the
ignition is switched ON.
To allow the front passeng er occupant classifi-
cation sensor to function properly, do not
place and sit on an additional seat cushion on
the front passenger's seat. The sensor may not
function properly because the additional seat
cushion could cause sensor interference.
If a small child is seated on the front passeng-
er's seat, the warning light may not operate.
Mexico
The seat belt warning light turns on if the driver
or front passenger's seat is occupied and the seat
belt is not fastened with the ignition switched
ON.
If the driver or front pa ssenger's seat belt is un-
fastened (only when the front passenger's seat is
occupied) and the vehicle is driven at a speed
faster than about 20 km/h (12 mph), the warn-
ing light flashes. After a short time, the warning
light stops flashing, but remains illuminated. If
a seat belt remains unfastened, the warning light
flashes again for a given period of time.
NOTE
Placing heavy items on the front passenger's
seat may cause the front passenger's seat belt
warning function to ope rate depending on the
weight of the item.
If a small child is seated on the front passeng-
er's seat, the warning light may not operate. Fasten the seat belts.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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NOTE
To allow the front passenger occupant
classification sensor to function
properly, do not place and sit on an
additional seat cushion on the front
passenger seat. The sensor may not
function properly because the additional
seat cushion could cause sensor
interference.
When a small child sits on the front
passenger seat, it is possible that the
warning beep will not operate.
▼Ignition Not Switched Off (STOP)
Warning Beep
If the driver's door is opened with the
ignition switched to
ACC, a beep will be
heard continuously in the cabin to notify
the driver that the ignition has not been
switched OFF (STOP). Under this
condition, the keyless entry system will
not operate, the vehicle cannot be locked,
and the battery voltage will be depleted.
▼ Key Removed from Vehicle Warning
Beep
Vehicles with advanc
ed keyless function
If the key is taken out of the vehicle while
the ignition is not switched OFF and all
the doors are closed, the beep which
sounds outside of the vehicle will be heard
6 times, the beep which sounds inside the
vehicle will be heard 6 times, and the
KEY warning light (red) in the instrument
cluster flashes continuously to notify the
driver that the ignition has not been
switched OFF.
Vehicles without advanced keyless
function
If the key is taken out of the vehicle while
the ignition is not switched OFF and all
the doors are closed, a beep will be heard
in the cabin 6 times and the KEY warning
light (red) in the ins trument cluster turns
on continuously to notify the driver that
the ignition has not been switched OFF.
NOTE
Because the key utilizes low-intensity
radio waves, the Key Removed From
Vehicle Warning may activate if the key is
carried together with a metal object or it
is placed in a poor si gnal reception area.
▼Request Switch Inoperable Warning
Beep (With the advanced keyless
function)
If the request switch is pressed with the
door open or ajar, or the ignition is not
switched OFF with a key being carried, a
beep will be heard outside for about 2
seconds to notify the driver that the door
or liftgate/trunk lid cannot be locked.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Index
Inspecting Engine Oil Level............. 6-24
Inspecting Washer Fluid Level......... 6-27
Interior Care...................................... 6-69Active driving display
maintenance................................. 6-71
Cleaning the floor mats............... 6-72
Cleaning the window interiors.....6-71
Instrument panel top (Soft pad)
maintenance................................. 6-71
Leather upholstery
maintenance................................. 6-70
Panel maintenance....................... 6-71
Plastic part maintenance.............. 6-71
Seat belt maintenance..................6-69
Upholstery and synthetic leather
maintenance................................. 6-70
Vinyl upholstery maintenance..... 6-69
Interior Lights................................. 5-130 Luggage Compartment Light.....5-130
Map Lights................................ 5-130
Overhead Lights........................ 5-130
i-ACTIVSENSE................................ 4-77
Active safety tec hnology............. 4-77
Adaptive Front Lighting System
(AFS)........................................... 4-80
Blind Spot Monitoring (BSM).....4-84
Camera and sensors..................... 4-78
Distance Recognition Support System
(DRSS).........................................4-96
Forward Sensing Camera
(FSC)......................................... 4-131
High Beam Control System
(HBC).......................................... 4-81
Lane-keep Assist System (LAS) &
Lane Departure Warning System
(LDWS)..................................... 4-113
Mazda Radar Cruise Control
(MRCC)..................................... 4-102
Pre-crash safety technology.........4-78
Radar sensors (rear)...................4-139
Radar sensor (front)...................4-136Rear Cross Traffic Alert
(RCTA)........................................ 4-98
Smart Brake Support (SBS)...... 4-128
Smart City Brake Support
(SCBS)....................................... 4-124
Traffic Sign Recognition System
(TSR)........................................... 4-90
i-ELOOP............................................4-70 Control status display.................. 4-70
Display......................................... 4-70
i-ELOOP indicator l ight.............. 4-70
i-ELOOP warning beep .....................7-40
J
Jack...................................................... 7-4
Jump-Starting.................................... 7-16
K
Keyless Entry System......................... 3-3
Keys.....................................................3-2
Key suspend function.................... 3-8
Transmitter.............. .......................3-4
Key left-in-luggage compartment
warning beep (With the advanced keyless
function)............................................ 7-40
Key left-in-vehicle warning beep (With
the advanced keyless function)......... 7-40
Key removed from vehicle warning
beep................................................... 7-39
Key Suspend Function........................ 3-8
L
Label Information............................... 9-2
Lane Departure Warning sound........ 7-40
Lane-Change Signals........................ 4-49
Lane-keep Assist System (LAS) & Lane
Departure Warning System
(LDWS)........................................... 4-113
Leaving Home Light......................... 4-47
Liftgate.............................................. 3-20
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Index
When liftgate/trunk lid cannot be
opened..........................................7-43
Lighting Control................................4-43
Lights-on reminder............................7-38
Light Bulbs Replacement................................ 6-42
Specifications.................................9-9
Lubricant Quality................................ 9-4
Luggage Compartment.. ..................5-138
Luggage Compartment Light.......... 5-130
M
Maintenance
Information.................................... 6-2
Scheduled.......................................6-4
Maintenance Monitor........................ 6-16
Manual Transaxle Operation............. 4-29
Map Lights...................................... 5-130
Mazda Radar Cruise Control
(MRCC)...........................................4-102 Close proximity warning........... 4-104
Cruise control function.............. 4-110
Display indication......................4-104
Setting the system..................... 4-104
Shift-up/shift-down request
display........................................ 4-110
Mazda Radar Cruise Control (MRCC)
System warnings............................... 7-41
Meters and Gauges............................4-12
Mirrors Outside mirrors............................ 3-32
Rearview mirror.......................... 3-33
Mirror Defogger.......... ...................... 4-54
Moonroof...........................................3-38
O
Odometer and Trip Meter................. 4-13
Outside Mirrors................................. 3-32
Outside Temperature Display............4-17
Overhead Console........................... 5-136
Overhead Lights......... ..................... 5-130
Overheating....................................... 7-20
Overloading....................................... 3-50
Over Rev. buzzer...............................7-41
Owner Maintenance Closing the Hood.........................6-21
Engine Compartment
Overview..................................... 6-22
Key battery replacement..............6-35
Opening the Hood....................... 6-20
Owner Maintenance
Precautions...................................6-18
P
Parking Brake....................................4-61
Personalization Features................... 9-12
Power Steering.................................. 4-76
Power steering warning buzzer......... 7-41
Power Windows................................ 3-35
R
Radar Sensors (Rear)...................... 4-139
Radar Sensor (Front).......................4-136
Rearview Mirror................................3-33
Rear Coat Hooks......... .................... 5-138
Rear Cross Traffic Alert (RCTA)...... 4-98
Rear Door Child Safet y Locks.......... 3-19
Rear Seat............................................. 2-7
Rear View Monitor......................... 4-150
Displayable range on the
screen......................................... 4-152
Picture quality adjustment......... 4-158
Rear view monitor operation..... 4-154
Rear view parking camera
location...................................... 4-151
Switching to the rear view monitor
display........................................4-151
Variance between actual road
conditions and displayed
Image......................................... 4-156
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