2021 MAZDA MODEL CX-30 check engine light

“Key Not Detected” is displayed
If 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).
Displayed 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
Authorized Mazda Dealer 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
operat ional 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 Authorized Mazda
Dealer.
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
Authorized Mazda Dealer so that they
can be programmed.
▼
High Beam Control System (HBC)
Warning Indicat ion/Warning Light
(Amber)
*
The light remains turned on if there is a
problem with the system. Have your
vehicle inspected at an Authorized
Mazda Dealer.
▼i-ACTIVSENSE Warning
Indication/Warning Light*
The indication displays if the system
has a malfunction.
Check the reason for the indication
displaying on the center display or
multi-information display.
Refer to If a Warning Light Turns On or
Flashes on page 7-22.
▼Exterior Light Warning Indication/
Warning Light
This light illuminates if there is a
malfunction in the exterior lights
(except license plate lights). Have your
vehicle inspected by an Authorized
Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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CAUTION
Do not drive the vehicle while an
exterior light has a malfunction. Poor
visibility, and not being able to signal
braking and turns may cause an
accident. In addition, if the vehicle is
driven with the lights not turned on, it
may conflict with laws and regulations
due to poor maintenance.
▼Low Fuel Warning Indication/
Warning Light
The warning indication/warning light
displays/turns on wh
en the ignition is
switched ON and the remaining fuel is
about 9 L (2.3 US gal, 1.9 Imp gal) or
the remaining distance to empty is 50
km (31 miles) or shorter. The warning
light flashes when the vehicle
continues to be driven with the
warning indication/warning light
displayed/turned on and the
remaining fuel in the tank is near
empty.
NOTE
The light illumination timing may vary
because fuel inside the fuel tank moves
around according to the driving
conditions and the vehicle posture.
Action to be taken
Add fuel. If the light is flashing, refuel
as soon as possible.
▼ Check Fuel Cap Warning
Indication/Warning Light
If the check fuel cap warning light
illuminates while driving , the
fuel-filler
cap may not be installed properly.
Action to be taken
Stop the engine and reinstall the
fuel-filler cap.
Refer to Refuelin g on page 3-33.
▼Engine Oil Level Warning
Indication/Warning Light
This warning light indicates that the
engine oil level is around the MIN
mark (page 6-18).
CAUTION
Do not continue to drive the vehicle
with the engine oil level warning
indication/warning light displayed/
turned on. If the vehicle continues to
be driven with an
insufficient amount
of engine oil, it could cause damage to
the engine.
Action to be taken
Add 1 L (0.26 US gal, 0.22 Imp gal) of
engine oil (page 6-17).
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Display*1*2ContentAction to be taken
Mazda Radar Cruise
Control Canceled. Drive
Safely This message is indicated when the
Mazda Radar Cruise Control
(MRCC), Mazda Radar Cruise Con-
trol with Stop & Go function (MRCC
with Stop & Go function), and the
Traffic Jam Assist (TJA) have been can-
celed other than by the driver.
Have your vehicle inspected by an
Authorized Mazda Dealer.
Distance & Speed Alert
Operation Canceled
Drive Safely This message is indicated when the
Distance & Speed Alert (DSA) have
been canceled other than by the driv-
er.
Have your vehicle inspected by an
Authorized Mazda Dealer.
Cruise Control Opera-
tion Canceled. Drive
Safely This message is indicated when the
Cruise Control have been canceled
other than by the driver.
Have your vehicle inspected by an
Authorized Mazda Dealer.
Emergency Braking Acti-
vated. Depress Brake
Pedal to Hold Stop This message is indicated after the
Smart Brake Support (SBS) brakes op-
erate and when the Smart Brake Sup-
port (SBS) is canceled.
Depress the brake pedal.
Touch Key Fob to Push
Button Start Switch This message is indicated when the
key battery is weak (battery dead or
damaged key). Touch the key against push button
start to start the engine.
Refer to Engine Start Function When
Key Battery is Dead on page 4-8.
Depress Brake Pedal to
Start Vehicle This message is indicated when the
push button start is pressed without
depressing the brake pedal. When starting the engine, press the
push button start with the brake ped-
al depressed.
Depress Clutch Pedal to
Start Vehicle This message is indicated when the
push button start is pressed without
depressing the clutch pedal. When starting the engine, press the
push button start with the clutch
pedal depressed.
Check Gear Selector
Lever Position This message is indicated when the
selector lever is shifted to the P or R
position while driving.
Check the selector lever position.
Close Door and Fasten
Seat Belt This message is indicated when AU-
TOHOLD is about to operate and a
door is opened or a seat belt is unfas-
tened. When the AUTOHOLD is turned on,
close the doors and fasten seat belts.
Wiper Blades Must Be
on Windshield Before
Operating This message is indicated when the
ignition is switched ON with the wip-
er arms at the service positions.
Return the wiper arms to the initial
positions.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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▼Power Liftgate Warning Beep*
If system operation precautions are
necessary, the driver is notified by the
warning sound.
Warning beep What to check
The beep sounds 3
times The conditions re-
quired for the power
liftgate to operate have
not been met, such as
an object being stuck
in the liftgate.
The beep sound con-
tinues The vehicle is being
driven with the liftgate
open. Stop the vehicle
and close the liftgate.
▼
Low Fuel Warning Beep
When the low fuel warning light
flashes, a warning beep is activated
once at the same time.
▼
Brake Override Warning Beep
A warning beep is activated when the
accelerator pedal and brake pedal are
depressed at the
same time while
driving. Only depress the brake pedal.
▼ Shift Position Warning Beep
A sound is activated when the push
button start is pressed while the
selector lever is in a position other
than P, and the ignition is switched to
ACC. Check the selector lever
position.
▼ Electric Parking Brake (EPB)
Warning Beep
The warning buzzer is activated under
the following conditions:
The vehicle is driven with the parking
brake applied.
The Electric Parking Brake (EPB)
switch is pulled while the vehicle is
driven.
You attempt to start driving the
vehicle while the conditions for
releasing the Electric Parking Brake
(EPB) automatically have not been
met.
▼AUTOHOLD Warning Beep
Warning light flashes/message is
displayed and beep sound is activated
simultaneously for about 5 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 switch is operated.

If the warning light flashes/message is
displayed and the beep sound is
activated simultaneously, have your
vehicle inspected at an Authorized
Mazda Dealer.
▼
Vehicle Problem Warning Beep
If any of the following problems occur,
a warning beep is activated. Check the
information regarding the warning
indication in the instrument cluster or
on the center display.
Automatic transmission problemIncrease in automatic transmission
internal temperature
Brake
fluid amount decreaseEngine oil level sensor problemElectric Parking Brake (EPB) problemEngine hydraulic pressure decrease
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Engine coolant temperature increaseEngine system problem
▼Blind Spot Monitoring (BSM)
System Warning Beep*
The Blind Spot Monitoring (BSM)
warning beep operates when the turn
signal lever is operated to the side
where the Blind Spot Monitoring
(BSM) warning light is illuminated.
▼Front Cross Traffic Alert (FCTA)
War n in g Be ep*
The Front Cross Traffic Alert (FCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching from the front on the left
and right sides of the vehicle.
▼Rear Cross
Tra ffi c Alert (RCTA)
War n in g Be ep*
The Rear Cross Traffic Alert (RCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching 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 Lane Departure
Warning System (LDWS) warning
sound can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
▼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.
Warning beep type Notification content
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 Radar Cruise
Control (MRCC) sys-
tem has been can-
celed.
The beep sounds in-
termittently while the
Mazda Radar Cruse
Control (MRCC) is op-
erating. The distance between
your vehicle and the
vehicle ahead is too
close. Check the safety
of the surrounding
area and reduce vehi-
cle speed.
▼
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) System
Warnings
*
The Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) system warnings notify
the driver of system malfunctions and
cautions on use when required.
Check based on the beep sound.
Warning beep type Notification content
The beep sounds 1
time while the Mazda
Radar Cruise Control
with Stop & Go func-
tion (MRCC with Stop
& Go function) is op-
erating If a malfunction occurs
in the system, make
sure that the Mazda
Radar Cruise Control
with Stop & Go func-
tion (MRCC with Stop
& Go function) has
been canceled.
The beep sounds in-
termittently while the
Mazda Radar Cruise
Control with Stop &
Go function (MRCC
with Stop & Go func-
tion) is operating. The distance between
your vehicle and the
vehicle ahead is too
close. Check the safety
of the surrounding
area and reduce vehi-
cle speed.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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