SignalWarning
Air Bag/Front Seat
Belt PretensionerSystem Warning Light A system malfunction is indicated if the warning light constant
ly flashes, constantly illu-
minates or does not illuminate a t all when the ignition is switched ON. If any of these oc-
cur, consult an Authorized Mazda Dealer as soon as possible. The system may not operate
in an accident.WA R N I N G
Never tamper with the air bag/pretensioner systems and always have an Authorized Mazda
Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner could
accidentally activate or become disabled causing serious injury or death.
AW D Wa r n i n g
Light*
When the light is turned on
The light turns on under the fo llowing conditions. The system m ay have a malfunction.
Have the vehicle checked at an Authorized Mazda Dealer.
•When there is a malfunction in the AWD system.•When there is a large difference between the tire size of the f ront and rear wheels.
When the light is flashing
Park the vehicle in a safe place. After a few moments, if the warning light stops flashing,
you can resume driving. If the light does not stop flashing, co ntact an Authorized Mazda
Dealer.
•When the differential oil temp erature is excessively high.•When there is a large difference between the front and rear whe el rotation, such as when
trying to remove the vehicle from mud.
(Flashing)
Tire Pressure Moni- toring System
Wa r n i n g L i g h t
*
If the tire pressure monitoring s ystem has a malfunction, the tire pressure warning light
flashes. Have your vehicle check ed by an Authorized Mazda Deale r as soon as possible.
WA R N I N G
If the tire pressure monitoring system warning light illuminates or
flashes, or the tire pres‐
sure warning beep sound is heard, decrease vehicle speed immediately and avoid sudden
maneuvering and braking:
If the tire pressure monitoring system warning light illuminates or flashes, or the tire pres‐
sure warning beep sound is heard, it is dang erous to drive the vehicle at high speeds, or
perform sudden maneuver ing or braking. Vehicle drivabilit y 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 situa‐
tion that could lead to tire failure and a dangerous accident.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-32*Some models.
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SignalWarning
(Red)
(Turns on)
KEY Warning Light If any malfunction occurs in the
keyless entry system, it illuminates continuously.
CAUTION
If the key warning indicator light illuminates or the push button start indicator light (amber)
flashes, the engine may not start. If the engine cannot be started, try starting it using the
emergency operation for starting the engine, and have the vehicle inspected at an Author‐
ized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4- 9.
Security Indicator
Light If the engine does not start with the correct key, and the secu
rity indicator light remains
illuminated or flashin g, try the following:
Make sure the key is within the o perational range for signal transmission. Switch the igni-
tion off, and then restart the engine. If the engine does not s tart after 3 or more tries, con-
tact an Authorized Mazda Dealer.
(Amber)
High Beam Control System (HBC)
Warning Light
*
The light remains turned on if th ere is a problem with the system. Have your vehicle in-
spected at an Authorized Mazda Dealer.
NOTE
If the Forward Sensing Camera (FSC) field of view is impaired during bad weather condi-
tions (such as rain, fog, and snow) and when the windshield is dirty, the warning indica-
tion/warning light for the High Beam Control System (HBC) may display/turn on. Howev-
er, this does not indicate a problem.
(Turns on)
Lane Departure
Wa r n i n g S y s t e m
(LDWS) Warning
Light
*
•The warning light remains turned on if there is a problem with the system. Have your
vehicle inspected at an Authorized Mazda Dealer.
•The LDWS does not operate when the warning light illuminates.
CAUTION
A problem in the system may be indicated un der the following conditions. Have your ve‐
hicle inspected at an Authorized Mazda Dealer.
When the light remains turned on while driving the vehicle.
When the system is canceled automatically, the light turns on. Normally, the system re‐
stores automatically and the light turns off, however, if the light remains turned on,
there may be a problem with the system.
The light does not illuminate when the ignition is switched ON.
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 LDWS may not operate
normally.
When an emergency spare tire is used, the system may not operate normally.
NOTE
If the windshield area in front of the Fo rward Sensing Camera (FSC) is fogged or ob-
structed, the light turns on temporarily. If the light remains turned on, there may be a
problem with the system.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-33
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SignalWarning
(Amber)
Mazda Radar Cruise Control with Stop & Go function
(MRCC with Stop & Go function)
Wa r n i n g L i g h t
*
The warning light turns on if t here is a malfunction in the sys tem while the Mazda Radar
Cruise Control with Stop & Go f unction (MRCC with Stop & Go fun ction) system is on.
Have your vehicle inspected at an Authorized Mazda Dealer.
Blind Spot Monitor- ing (BSM) OFF In-
dicator Light
*
A problem in the system may be indicated under the following co nditions.
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 Blin d Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). Ho wever, it does not indicate a malfunction.
LED Headlight
Wa r n i n g L i g h t*
This light illuminates if there is a malfunction in the LED hea dlight. Have your vehicle
inspected by an Authorized Mazda Dealer.
▼ Taking Action
Take the appropriate action and verify that the warning light t
urns off.
SignalWarning Action to be taken
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 be-
cause fuel inside the fuel tank moves around
according to the driv
ing conditions and the
vehicle posture. Add fuel.
Check Fuel Cap Warn-
ing Light If the check fuel cap warning light illumi-
nates while driving, t
he fuel-filler cap may
not be installed properly. Stop the engine and rein
stall the fuel-filler
cap.
Refer to Refueling on page 3-27.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-34*Some models.
CX-3_8GR7-EA-18B_Edition1 2017-12-20 16:18:14
SignalWarning 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 ig-
nition switched ON.
If the driver or front p
assenger's seat belt is
unfastened (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 warning light flashes. After a short time,
the warning light stops flashing, but re-
mains illuminated.
NOTE
•The warning light flashes for about 6 sec-
onds if the driver's seat belt is not fastened
when the ignition is switched ON.
•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'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 pas-
senger's seat, the warning light may not
operate. Fasten the seat belts.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-35
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SignalWarning Action to be taken
Seat Belt Warning
Light 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 ig-
nition switched ON.
If the driver or front passenger's seat belt is
unfastened (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 warning light flashes. After a short time,
the warning light stops flashing, but re-
mains illuminated. If a seat belt remains un-
fastened, the warning light flashes again for
a given period of time.
NOTE
•Placing heavy items on the front passeng-
er's seat may cause the front passenger's
seat belt warning function to operate de-
pending on the weight of the item.
•To allow the front passenger seat weight
sensor to function properly, do not place
and sit on an additio
nal seat cushion on
the front passenger's seat. The sensor may
not function properly because the addi-
tional seat cushion could cause sensor in-
terference.
•If a small child is seated on the front pas-
senger's seat, the warning light may not
operate. Fasten the seat belts.
Door-Ajar Warning
Light The light turns on if any door/liftgate is not
closed securely.
Close the door/liftgate securely.
Low Washer Fluid
Level Warning Light*
This warning light indicates that little wash-
er fluid remains. Add washer fluid (page 6-27).
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-36*Some models.
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SignalWarning Action to be taken
(Amber)
Smart Brake Support/
Smart City Brake Sup- port (SBS/SCBS)
Warning Light
*
The light turns on if the windshield or the
radar sensor are dirty, or there is a malfunc-
tion in the system. (Vehicles with type B audio)
Verify the reason why the warning light is
illuminated on the center display (page
7-27).
If the reason why the warning light is illu-
minated is due to a dirty windshield, clean
the windshield.
If the warning light is illuminated because
of a dirty radar sensor, clean the front em-
blem.
For any other reasons, have the vehicle in-
spected at an Authorized Mazda Dealer.
(Vehicles without type B audio)
If the reason why the warning light is illu-
minated is due to a dirty windshield, clean
the windshield. For any other reasons,
have the vehicle inspected at an Author-
ized Mazda Dealer.
Tire Pressure Monitoring Syste
m Warning Light (Turns on)
*
Take the appropriate action and verify that the warning light t urns off.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-37
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KEY Warning Light
Take the appropriate action and verify that the warning light turns off.
SignalCause Action to be taken
(Red)
(Flashing) The advanced key battery is dead
. Replace the key battery (page 6-34).
The advanced key is not within the opera-
tion range. Bring the advanced key into the operation
range (page 3-7).
The advanced key is
placed in areas inside
the cabin where it is dif ficult for the key to
be detected.
A key from another manufacturer similar to
the advanced key is in the operation range. Take the key from another manufacturer
similar to the advanced
key out of the op-
eration range.
Without the ignition switched off, the ad-
vanced key is taken out of the cabin, and
then all the doors are closed. Bring the advanced k
ey back into the cab-
in.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-40
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▼AUTOHOLD Warning Beep
Warning light flashes and beep sound is
activated simultaneou
sly for about five
seconds when using AUTOHOLD
function or when AUTOHOLD switch is
operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switc h is operated.
If the warning light flashes and the beep
sound is activated simultaneously, have
your vehicle inspected at an Authorized
Mazda Dealer.
▼ Tire Inflation Pressure Warning
Beep*
The warning beep sound will be heard for
about 3 seconds if the tire pressures
decrease.
Refer to Tire Pressure Monitoring System
on page 4-144.
▼Power Steering Warning Buzzer
If the power steering system has a
malfunction, the power steering
malfunction light turn
s on or flashes and
the buzzer operates at the same time.
Refer to Stop Vehicle in Safe Place
Immediately on page 7-27.
▼ 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
9-9.
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.
▼
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 LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9.
•The type of the LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-46*Some models.
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