2019 MAZDA MODEL CX-30 warning light

When starting the engine, the brake
system warning light may turn on and
the warning indication may be
displayed. In this case, park the
vehicle in a safe location and release
the brake pedal.
If the brake system warning light/
warning indication does not turn off
even after parking the vehicle, have
the vehicle inspected by an expert
repairer (we recommend an
Authorised Mazda Repairer).

▼Electronic Brake Force Distribution
System Warning
If the electronic brake force
distribution control unit determines
that some components are operating
incorrectly, the control unit may
illuminate the brake system warning
light and the ABS warning light
simultaneously. The problem is likely to
be the electronic brake force
distribution system.
WARNING
Do not drive with both the brake
system warning light and ABS warning
light illuminated. Have the vehicle
towed to an expert repairer (we
recommend an Authorised Mazda
Repairer) to have the brakes inspected
as soon as possible:
Driving when the brake system warning
light and ABS warning light are
illuminated simultaneously is
dangerous.
When both lights are illuminated, the
rear wheels could lock more quickly in
an emergency stop than under normal
circumstances.
▼Charging System Warning
Indication/Warning Light
If the warning light illuminates while
driving , it indicates a malfunction of
the alternator or of the charging
system.
Drive to the side of the road and park
off the right-of-way. Consult an expert
repairer (we recommend an
Authorised Mazda Repairer).
CAUTION
Do not continue driving when the
charging system warning light is
illuminated because the engine could
stop unexpectedly.
▼Engine Oil Warning Indication/
Warning Light
This warning light indicates low engine
oil pressure.
CAUTION
Do not run the engine if the oil
pressure is low. Otherwise, it could
result in extensive engine damage.
If the light illuminates or the warning
indication is displayed while driving:
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-50

1. Drive to the side of the road and
park off the right-of-way on level
ground.
2. Turn off the engine and wait 5
minutes for the oil to drain back
into the sump.
3. Inspect the engine oil level (page
6-27). If it's low, add the
appropriate amount of engine oil
while being careful not to overfill.
CAUTION
Do not run the engine if the oil
level is low. Otherwise, it could
result in extensive engine damage.
4. Start the engine and check the
warning light.

If the light remains illuminated even
though the oil level is normal or after
adding oil, stop the engine
immediately and have your vehicle
towed to an expert repairer (we
recommend an Authorised Mazda
Repairer).
▼High Engine Coolant Temperature
Warning Indication
Displays if the engine coolant
temperature has increased excessively.
“Elevated Engine Coolant Temp. Drive
Slowly” displayed
Drive slowly to reduce engine load
until you can find a safe place to stop
the vehicle and wait for the engine to
cool down.
“Excessive Engine Coolant Temp. Stop
the Vehicle in a Safe Location”
displayed
This indicates the possibility of
overheating. Park the vehicle in a safe
place immediately and stop the
engine.
Refer to Overheating on page 7-44.
CAUTION
Do not drive the vehicle with the high
engine coolant temperature warning
light illuminated. Otherwise, it could
result in damage to the engine.
▼Power Steering Malfunction
Indication/Indicator Light
The message is displayed if the electric
power steering has a malfunction.
If the message is displayed, stop the
vehicle in a safe place and do not
operate the steering wheel. There is no
problem if the indication turns off
when the engine is restarted after
some time has passed. If the indication
displays even after the engine is
restarted, contact an expert repairer
(we recommend an Authorised Mazda
Repairer) if the message is displayed
continuously.
NOTE
xIf the message is displayed, the
power steering will not operate
normally. In this case, the steering
wheel can still be operated,
however, the operation may feel
heavy compared to normal, or the
steering wheel could vibrate when
turning.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-51

xRepeatedly jerking the steering
wheel left and right while the vehicle
is stopped or moving extremely
slowly will cause the power steering
system to go into protective mode
which will make the steering feel
heavy, but this does not indicate a
problem. If this occurs, park the
vehicle safely and wait several
minutes for the system to return to
normal.
▼ABS Warning Indication/Warning
Light
If the ABS warning light stays on while
you're driving , the ABS control unit has
detected a system malfunction. If this
occurs, your brakes will function
normally as if the vehicle had no ABS.
Should this happen, consult an expert
repairer (we recommend an
Authorised Mazda Repairer) as soon as
possible.
NOTE
xWhen the engine is jump-started to
charge the battery, uneven rpm
occurs and the ABS warning light
may illuminate. If this occurs, it is the
result of the weak battery and does
not indicate an ABS malfunction.
Recharge the battery.
xThe brake assist system does not
operate while the ABS warning light
is illuminated.
▼Master Warning Indication
The indication displays if the system
has a malfunction.
Check the reason for the indication
displaying on the centre display or
multi-information display.
Refer to If a Warning Light Turns On or
Flashes on page 7-49.
▼Brake Control System Warning
Indication/Warning Light (Amber)
The warning light illuminates when the
system has a malfunction. Have your
vehicle inspected at an expert repairer
(we recommend an Authorised Mazda
Repairer).
▼Electric Parking Brake (EPB)
Indication/Indicator Light
This warning has the following
functions:
Parking brake warning/Indicator light
inspection
The light illuminates when the parking
brake is applied with the ignition
switched to START or ON. It turns
off
when the parking brake is released.
When the light is
flashing
The light flashes if the Electric Parking
Brake (EPB) has a malfunction. If the
light remains flashing even if the
Electric Parking Brake (EPB) switch is
operated, consult an expert repairer
(we recommend an Authorised Mazda
Repairer) as soon as possible.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-52

▼Brake Override Warning Indication
This message is displayed when the
accelerator pedal and brake pedal are
depressed at the same time while
driving.
Release the accelerator pedal and
depress the brake pedal.
▼Check Engine Indication/Light
If this light illuminates while driving ,
the vehicle may have a problem. It is
important to note the driving
conditions when the light illuminated
and consult an expert repairer (we
recommend an Authorised Mazda
Repairer).
The check engine light may illuminate
in the following cases:
xThe engine's electrical system has a
problem.
xThe emission control system has a
problem.
x(Except SKYACTIV-D 1.8)
xThe fuel tank level being very low
or approaching empty.
xThe
fuel-filler cap is missing or not
tightened securely.
If the check engine light remains on, or
it flashes continuously , do not drive at
high speeds and consult an expert
repairer (we recommend an
Authorised Mazda Repairer) as soon as
possible.
WARNING
If the check engine light turns on, do
not disconnect the battery leads.
If the battery leads are disconnected
and then reconnected, the engine
could be damaged and catch on
fire.
▼i-stop Warning Indication/
Warning Light (Amber)*
When the light is turned on
xA problem in the system may be
indicated under the following
conditions. Have your vehicle
inspected at an expert repairer (we
recommend an Authorised Mazda
Repairer).
xThe light does not turn on when
the ignition is switched ON.
x(Except European model)
If the i-stop warning light (amber)
remains on while the engine is
running , the battery performance
may have decreased. Have your
vehicle inspected at an expert
repairer (we recommend an
Authorised Mazda Repairer).
When the light is flashing
The light continues to flash if the
system has a malfunction. Have your
vehicle inspected at an expert repairer
(we recommend an Authorised Mazda
Repairer).
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-53

▼Petrol Particulate Filter Warning
Indication/Warning Light
(SKYACTIV-X 2.0)
“Excessive Soot Levels in Filter. Drive
Until Warning Light Turns
Off” is
displayed/When the light is turned on
The particulate matter (PM) cannot be
removed automatically and the
amount of collected PM reaches a
specified amount.
After the engine has sufficiently
warmed up (engine coolant
temperature of 80 °C (176 °F) or
more), depress the accelerator pedal
and drive the vehicle at a speed of 20
km/h (12 mph) or more for about 30
minutes to eliminate the PM.
“Abnormal Soot Levels in Filter. Have
the Vehicle Inspected.” is displayed/
When the light is
flashing
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer).
CAUTION
If the vehicle is continually driven as
usual with the petrol particulate filter
warning light illuminated, PM increases
and the warning light may start
flashing. If the petrol particulate filter
warning light starts flashing, have the
vehicle inspected immediately at an
expert repairer (we recommend an
Authorised Mazda Repairer). If the
vehicle is not inspected and continues
to be driven, the engine may
malfunction.
NOTE
xWhen the petrol particulate filter
warning light flashes, the engine
output is restricted to protect the
petrol particulate filter.
xThe engine sound and exhaust gas
smell may change when PM is being
removed while driving.
▼Diesel Particulate Filter Warning
Indication/Warning Light
(SKYACTIV-D 1.8)
“Excessive Soot Levels in Filter. Drive
Until Warning Light Turns Off” is
displayed/When the light is turned on
The particulate matter (PM) cannot be
removed automatically and the
amount of collected PM reaches a
specified amount.
After the engine has sufficiently
warmed up (engine coolant
temperature of 80 °C (176 °F) or
more), depress the accelerator pedal
and drive the vehicle at a speed of 15
km/h (9.3 mph) or more for about 15
to 20 minutes to eliminate the PM.
“Abnormal Soot Levels in Filter. Have
the Vehicle Inspected” is displayed/
When the light is flashing
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer).
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-54

CAUTION
If the vehicle is continually driven as
usual with the diesel particulate filter
warning light turned on, PM increases
and the warning light may start
flashing. If the diesel particulate filter
warning light starts flashing, have the
vehicle inspected immediately at an
expert repairer (we recommend an
Authorised Mazda Repairer). If the
vehicle is not inspected and continues
to be driven, the engine may
malfunction.
NOTE
xWhen the diesel particulate filter
warning light
flashes, the engine
output is restricted to protect the
diesel particulate
filter.
xThe engine sound and exhaust gas
smell may change when PM is being
removed while driving.
▼Automatic Transmission Warning
Indication/Warning Light*
The indication/light illuminates when
the transmission has a problem.
CAUTION
If the automatic transmission warning
indication/light illuminates, the
transmission has an electrical problem.
Continuing to drive your Mazda in this
condition could cause damage to your
transmission. Consult an expert
repairer (we recommend an
Authorised Mazda Repairer) as soon as
possible.
▼TCS/DSC Indication/Indicator
Light (Turns on)
If the light stays on, the TCS, DSC or
the brake assist system may have a
malfunction and they may not operate
correctly. Take your vehicle to an
expert repairer (we recommend an
Authorised Mazda Repairer).
▼Air Bag/Seat Belt Pretensioner
System Warning Indication/
Warning Light
A system malfunction is indicated if the
warning light constantly
flashes,
constantly illuminates or does not
illuminate at all when the ignition is
switched ON. If any of these occur,
consult an expert repairer (we
recommend an Authorised Mazda
Repairer) as soon as possible. The
system may not operate in an accident.
WARNING
Never tamper with the air bag/
pretensioner systems and always have
an expert repairer (we recommend an
Authorised Mazda Repairer) 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.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-55

▼KEY Warning Indication/Warning
Light (Red)
“Keyless Entry System Malfunc. Have
the Vehicle Inspected” is displayed
This message is displayed if the
advanced keyless entry & push button
start system has a problem.
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer).
CAUTION
If the message is indicated, 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 expert repairer
(we recommend an Authorised Mazda
Repairer) as soon as possible.
Refer to Emergency Operation for
Starting the Engine on page 4-9.
“Key Not Detected” is displayed
xIf the presence of the key cannot be
detected (dead battery, battery
malfunction, no key), it is displayed
when the driver attempts to start the
engine (push button start operation,
brake pedal depression).
xDisplayed when it is determined that
a key that was in the vehicle has
been removed from the vehicle. (Key
taken out warning. Other than
IG-OFF).
▼Security Indicator Light
If the security indicator light flashes
continuously while you are driving, do
not shut
off the engine. Go to an
expert repairer (we recommend an
Authorised Mazda Repairer) and have
it checked. If the engine is shut off
while the indicator light is
flashing , you
will not be able to restart it.
Make sure the key is within the
operational range for signal
transmission. Switch the ignition off,
and then restart the engine. If the
engine does not start after 3 or more
tries, contact an expert repairer (we
recommend an Authorised Mazda
Repairer).
NOTE
Because the electronic codes are reset
when the immobilizer system is
repaired, the keys are needed. Make
sure to bring all the keys to an
Authorised Mazda Repairer so that
they can be programmed.
▼AWD Warning Indication/
Warning Light*
“AWD Malfunction. Front Wheel
Drive Only. Have the Vehicle
Inspected” is displayed/When the
light is turned on
The indication is displayed/the light
turns on under the following
conditions. The system may have a
malfunction. Have the vehicle checked
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-56*Some models.

at an expert repairer (we recommend
an Authorised Mazda Repairer).
xWhen there is a malfunction in the
AWD system.
“Excessive AWD System Load. Drive
Slowly Until Warning Light Turns Off.
Vehicle Now in Front Wheel Drive” is
displayed/When the light is flashing
The indication is displayed/the light
flashes under the following conditions.
Park the vehicle in a safe place and
check that the warning indication light
turns
off/ the warning light stops
flashing, and then drive the vehicle.
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer) if the indication is
continuously displayed.
xWhen the differential oil temperature
is excessively high.
xWhen there is a large difference
between the front and rear wheel
rotation, such as when trying to
remove the vehicle from mud.
“Mismatched Tyre Diameters. Vehicle
Now in Front Wheel Drive” is
displayed/When the light is turned on
The indication is displayed/the light
turns on under the following
conditions. Inspect the tyre sizes or
tyre pressures on all 4 wheels. Contact
an expert repairer (we recommend an
Authorised Mazda Repairer) if the
indication remains on or the warning
light remains illuminated.
xWhen any of the tyre diameter is
different.
xWhen any of the tyre pressure is
incorrect.
▼120 km/h Warning Light*
The 120 km/h warning light
illuminates when the vehicle speed
exceeds 120 km/h.
Action to be taken
Lower the vehicle speed.
▼Tyre Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Flashing)
*
If there is a problem with the TPMS or
the voltage of a tyre pressure sensor
decreases, the TPMS warning light
flashes and a message is displayed on
the multi-information display. Have
your vehicle inspected by an expert
repairer (we recommend an
Authorised Mazda Repairer).
WARNING
Do not drive the vehicle at high
speeds if the TPMS warning light turns
on or flashes:
Driving the vehicle at high speeds
while the TPMS warning light is turned
on or
flashing is dangerous because
the brake performance and the
steering wheel operability will be
reduced. If the vehicle is driven at high
speeds or the brakes are suddenly
applied, it could lead to an accident.
Gradually apply the brakes to lower the
vehicle's speed.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-57