Mazda 3 Hatchback (2018 year). Manual - part 33

Signal

Warning

Blind Spot Monitor-

ing (BSM) OFF In-

dicator Light

*

A problem in the system may be indicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer.



The light does not turn 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 Blind Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). However, it does not indicate a malfunction.

(Amber)

Mazda Radar Cruise

Control (MRCC)

Warning Light

*

The “Front radar sensor system malfunction” is displayed if there is a malfunction in the
system while the Mazda Radar Cruise Control (MRCC) system is on. Have your vehicle
inspected at an Authorized Mazda Dealer.

(Turns on)

Lane-keep Assist

System (LAS) &

Lane Departure

Warning System

(LDWS) Warning

Light

*

The warning light turns on if the system has a malfunction. Have 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 addition, 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

Warning Light

*

This light illuminates if there is a malfunction in the LED headlight. Have your vehicle
inspected by an Authorized Mazda Dealer.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

*Some models.

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▼ Taking Action

Take the appropriate action and verify that the warning light turns off.

Signal

Warning

Action to be taken

(Turns on)

Tire Pressure

Monitoring

System

Warning

Light

*

When the warning light illuminates, and the
warning beep sound is heard (about 3 seconds),
tire pressure is too low in one or more tires.

WARNING

If the tire pressure monitoring system warning
light illuminates or flashes, or the tire pressure
warning beep sound is heard, decrease vehicle
speed immediately and avoid sudden maneuver‐
ing and braking:
If the tire pressure monitoring system warning
light illuminates or flashes, or the tire pressure
warning beep sound is heard, it is dangerous to
drive the vehicle at high speeds, or perform sud‐
den maneuvering or braking. Vehicle drivability
could worsen and result in an accident.
To determine if you have a slow leak or a flat, pull
over to a safe position where you can check the
visual condition of the tire and determine if you
have enough air to proceed to a place where air
may be added and the system monitored again
by an Authorized Mazda Dealer or a tire repair
station.

Do not ignore the TPMS Warning Light:
Ignoring the TPMS warning light is dangerous,
even if you know why it is illuminated. Have the
problem taken care of as soon as possible before
it develops into a more serious situation that
could lead to tire failure and a dangerous acci‐
dent.

Inspect the tires and adjust to the specified in-
flation pressure (page 6-38).

NOTE



Perform tire pressure adjustment when the
tires are cold. Tire pressure will vary accord-
ing to the tire temperature, therefore let the ve-
hicle stand for 1 hour or only drive it 1.6 km (1
mile) or less before adjusting the tire pres-
sures. When pressure is adjusted on hot tires to
the cold inflation pressure, the TPMS warning
light/beep may turn on after the tires cool and
pressure drops below specification.
Also, an illuminated TPMS warning light, re-
sulting from the tire air pressure dropping due
to cold ambient temperature will remain illu-
minated even if the ambient temperature rises.
In this case, it will also be necessary to adjust
the tire air pressures. If the TPMS warning
light illuminates due to a drop in tire air pres-
sure, make sure to check and adjust the tire air
pressures.



Tires lose air naturally over time and the
TPMS cannot tell if the tires are getting too
soft over time or you have a flat. However,
when you find one low tire in a set of four-that
is an indication of trouble; you should have
someone drive the vehicle slowly forward so
you can inspect any low tire for cuts and any
metal objects sticking through tread or side-
wall. Put a few drops of water in the valve
stem to see if it bubbles indicating a bad valve.
Leaks need to be addressed by more than sim-
ply reinflating the tire as leaks are dangerous
― take it to an Authorized Mazda Dealer.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

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Signal

Warning

Action to be taken

Smart Brake

Support/

Smart City

Brake Sup-

port (SBS/

SCBS)Smart

City Brake

Support
(SCBS)

Warning

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 malfunction 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, clean the front emblem.
For any other reasons, have the vehicle inspect-
ed at an Authorized Mazda Dealer.

Low Fuel

Warning

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 timing 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-filler cap may not be in-
stalled properly.

Stop the engine and reinstall the fuel-filler cap.
Refer to Fuel-Filler Cap on page 3-29

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

*Some models.

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Signal

Warning

Action to be taken

Seat Belt

Warning

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 passenger'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 passenger 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 passenger'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 operate 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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Signal

Warning

Action to be taken

Low Washer

Fluid Level

Warning

Light

*

This warning light indicates that little washer
fluid remains.

Add washer fluid (page 6-27).

Door-Ajar

Warning

Light

The light turns on if any door/liftgate is not
closed securely.

Close the door/liftgate securely.

 

KEY Warning Light

Take the appropriate action and verify that the warning light turns off.

Signal

Cause

Action to be taken

(Red)

(Flashing)

The key battery is dead.

Replace the key battery (page 6-35).

The key is not within the operation range.

Bring the key into the operation range
(page 3-7).

The key is placed in areas inside the cabin
where it is difficult for the key to be detect-
ed.

A key from another manufacturer similar to
the key is in the operation range.

Take the key from another manufacturer
similar to the key out of the operation
range.

Without the ignition switched off, the key is
taken out of the cabin, and then all the
doors are closed.

Bring the key back into the cabin.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

*Some models.

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Message Indicated on Display

*

If a message is displayed in the center display (Type B audio), take appropriate action (in a
calm manner) according to the displayed message.
 

(Display example)

▼ Stop Vehicle in Safe Place Immediately

If the following messages are displayed in the center display (Type B audio), a vehicle
system may be malfunctioning. Stop the vehicle in a safe place and contact an Authorized
Mazda Dealer.

Display

Indicated Condition

Displays if the engine coolant temperature has increased excessively.

Displays if the charging system has a malfunction.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

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▼ Make Sure the Message is No Longer Displayed

Displays in the following cases:

Display

Indicated Condition/Action to be taken

Displays if i-ELOOP requires charging. Leave the engine idling and
wait until the message disappears.

NOTE



If the vehicle is driven while the message is displayed, the buzzer will
sound.



If you turn the steering wheel while the message is displayed, it will
feel heavier than normal, but this does not indicate an abnormality.
The steering operation will return to normal after the message has dis-
appeared.

▼ Verify Display Content

Displays in the following cases:

Display

Indicated Condition/Action to be taken

The following message is displayed when the temperature around the
center display is high.
Lowering the temperature in the cabin or the temperature around the
center display by avoiding direct sunlight is recommended.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

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Warning Sound is

Activated

▼ Lights-On Reminder

The lights-on reminder is operable when
the time setting

*1

 of the auto headlight off

function is off.
If lights are on and the ignition is switched
to ACC or off, a continuous beep sound
will be heard when the driver's door is
opened.

*

1 If the light switch is left on, the auto

headlight off function automatically
turns off the lights about 30 seconds
after switching the ignition off. The
time setting can be changed.
Refer to Personalization Features on
page 9-12.

NOTE



When the ignition is switched to ACC,
the “Ignition Not Switched Off (STOP)
Warning Beep” (page 7-39) overrides
the lights-on reminder.



A personalized function is available to
change the sound volume for the
lights-on reminder.
Refer to Personalization Features on
page 9-12.

▼ Air Bag/Front Seat Belt

Pretensioner System Warning Beep

If there is a problem with the air bag/seat
belt pretensioner systems and the warning
light illumination, a warning beep sound
will be heard for about 5 seconds every
minute.
 
The air bag and seat belt pretensioner
system warning beep sound will continue
to be heard for approximately 35 minutes.
Have your vehicle inspected at an
Authorized Mazda Dealer as soon as
possible.

WARNING

Do not drive the vehicle with the air bag/
seat belt pretensioner system warning beep
sounding:
Driving the vehicle with the air bag/seat
belt pretensioner system warning beep
sounding is dangerous. In a collision, the
air bags and the seat belt pretensioner
system will not deploy and this could result
in death or serious injury. Contact an
Authorized Mazda Dealer to have the
vehicle inspected as soon as possible.

▼ Seat Belt Warning Beep

If the driver's seat belt is not fastened
when the ignition is switched ON, a beep
sound will be heard for about 6 seconds. If
the driver or the front passenger's seat belt
is not fastened and the vehicle is driven at
a speed faster than about 20 km/h (12
mph), a beep sound will be heard again for
a specified period of time.

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 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, 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 instrument 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 signal 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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▼ Key Left-in-luggage Compartment

Warning Beep (With the advanced
keyless function)

If the key is left in the luggage
compartment/trunk with all the doors
locked and the liftgate/trunk lid closed, a
beep will be heard outside for about 10
seconds to notify the driver that the key is
in the luggage compartment/trunk. In this
case, take out the key by pressing the
electric liftgate/trunk lid opener and
opening the liftgate/trunk lid. The key
taken out of the luggage compartment/
trunk may not operate because its
functions have been temporarily stopped.
To restore the key's functions, perform the
applicable procedure (page 3-8).

▼ Key Left-in-vehicle Warning Beep

(With the advanced keyless
function)

If all the doors and luggage compartment/
trunk are locked using another key while
the key is left in the cabin, the beep which
sounds outside of the vehicle will be heard
for about 10 seconds to notify the driver
that the key is in the cabin. In this case,
take out the key by opening the door. A
key taken out of the vehicle using this
method may not operate because its
functions have been temporarily stopped.
To restore the key's functions, perform the
applicable procedure (page 3-8).

▼ i-ELOOP Warning Beep

*

The beep will activate if you attempt to
drive the vehicle under the following
conditions.



The i-ELOOP indicator light is flashing
green.



“i-ELOOP Charging” is indicated in the
center display (Type B audio).

The beep will stop when the vehicle is
stopped. Make sure the indicator light is
no longer illuminated and the message is
no longer displayed before driving the
vehicle.

▼ Tire Inflation Pressure Warning

Beep

*

The warning beep sound will be heard for
about 3 seconds when there is any
abnormality in tire inflation pressures
(page 4-146).

▼ Lane Departure Warning Sound

While the system is operating, if the
system determines that the vehicle may
depart from the lane, it sounds a warning
sound.

NOTE



The volume of the Lane-keep Assist
System (LAS) & Lane Departure
Warning System (LDWS) warning sound
can be changed.
Refer to Personalization Features on
page 9-12.



The type of the Lane-keep Assist System
(LAS) & Lane Departure Warning
System (LDWS) warning sound can be
changed.
Refer to Personalization Features on
page 9-12.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

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▼ Blind Spot Monitoring (BSM)

Warning Beep

*

Driving forward

The warning beep operates when the turn
signal lever is operated to the side where
the Blind Spot Monitoring (BSM) warning
light is illuminated.

NOTE
A personalized function is available to
change the Blind Spot Monitoring (BSM)
warning beep sound volume.
Refer to Personalization Features on page
9-12.

Reversing

The Blind Spot Monitoring (BSM)
warning sound is activated if there is a
possibility of collision with a vehicle
approaching from behind and from the
rear on the left and right sides of the
vehicle.

▼ Excessive Speed Warning

If the vehicle speed exceeds the speed
limit sign displayed on the active driving
display, the warning sound is activated and
the area around the speed limit sign
displayed on the active driving display
flashes 3 times in amber, and if the vehicle
speed continues to exceed the displayed
speed limit sign, the indication stops
flashing and remains on.

▼ Mazda Radar Cruise Control

(MRCC) System Warnings

*

The Mazda Radar Cruise Control (MRCC)
system warnings notify the driver of
system malfunctions and cautions on use
when required.
Check based on the beep sound.

Cautions

What to check

The beep sounds 1 time
while the Mazda Radar
Cruise Control (MRCC)
is operating

The vehicle speed is
slower than 25 km/h (16
mph) and the Mazda Ra-
dar Cruise Control
(MRCC) system has
been canceled.

The beep sounds contin-
uously while driving

The distance between
your vehicle and the ve-
hicle ahead is too close.
Verify the safety of the
surrounding area and re-
duce vehicle speed.

When the Mazda Radar
Cruise Control (MRCC)
is operating, the beep
sounds and the Mazda
Radar Cruise Control
(MRCC) warning light
(amber) in the instru-
ment cluster turns on.

A malfunction in the
system may be indicated.
Have your vehicle in-
spected at an Authorized
Mazda Dealer.

▼ Collision warning

*

If there is a possibility of a collision with a
vehicle ahead or an obstruction at the rear
of the vehicle, the warning light in the
instrument cluster flashes at the same time
as the warning indication is displayed in
the active driving display, and a warning
sound is activated intermittently.

▼ Power Steering Warning Buzzer

If the power steering system has a
malfunction, the power steering
malfunction light turns on or flashes and
the buzzer operates at the same time.
Refer to Warning Lights on page 4-24.

▼ Over Rev. Buzzer

*

The buzzer sounds to notify the driver if
the engine speed is about to exceed the
permissible engine speed.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

*Some models.

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CAUTION

Operate the accelerator and shift gears
according to the driving conditions so that
the buzzer does not sound. If the engine
speed exceeds the permissible engine
speed, the engine could be damaged.

▼ Electric Parking Brake (EPB)

Warning Beep

The warning buzzer is activated under the
following conditions:



The vehicle is driven with the electric
parking brake (EPB) applied.



The electric parking brake (EPB) switch
is pulled while the vehicle is driven.

If Trouble Arises

Warning/Indicator Lights and Warning Sounds

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When Liftgate/Trunk Lid

Cannot be Opened

If the battery is dead, the liftgate/trunk lid
cannot be unlocked and opened.
In this case, the liftgate/trunk lid can be
unlocked by taking care of the dead
battery situation.
Refer to Jump-Starting on page 7-16.
If the liftgate/trunk lid cannot be unlocked
even if the dead battery situation has been
resolved, the electrical system may have a
malfunction.
In this case, the liftgate/trunk lid can be
opened using the following procedure as
an emergency measure.

(5–door)

1. Wrap the end of a flathead screwdriver

in a cloth and remove the cap on the
interior surface of the liftgate using it.
 

Cap

2. Turn the lever to the right to unlock the

liftgate.
 

Lever

Cap

(4–door)

1. Open the cover.
2. (With theft-prevention cover)

Open the cap.
 

Cover

Cap

If Trouble Arises

When Liftgate/Trunk Lid Cannot be Opened

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3. (With theft-prevention cover)

Turn the screw counterclockwise and
remove it, and then remove the
theft-prevention cover.
 

Screw

4. Move the lever to the left to fold the

seatback.
 

Cover

Lever

5. Move the lever to the left to open the

trunk lid.

(Type A)
 

(Type B)
 

After performing this emergency measure,
have the vehicle inspected at an
Authorized Mazda Dealer as soon as
possible.

If Trouble Arises

When Liftgate/Trunk Lid Cannot be Opened

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If the Active Driving

Display Does Not Operate

If the active driving display does not
operate, switch the ignition off and then
restart the engine. If the active driving
display does not operate even with the
engine restarted, have the vehicle
inspected at an Authorized Mazda Dealer.

If Trouble Arises

Active Driving Display Does Not Operate

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MEMO

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