2019 MAZDA MODEL 3 SEDAN warning light

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 Authorized Mazda Dealer as
soon as possible.
▼ Brake Override Warning Indication
This message is displayed when the
accelerator pedal and brake pedal are
depressed at the same time while driving.
Action to be taken
Release the accelerator pedal and depress
the brake pedal.
▼Check Engine Indication/Light
If this light illumina
tes while driving, the
vehicle may have a problem. It is
important to note the driving conditions
when the light illuminated and consult an
Authorized Mazda Dealer.
The check engine light may illuminate in
the following cases:
The engine's electrical system has a
problem.
The emission control system has a
problem.
The fuel tank level being very low or
approaching empty.
The fuel-filler cap is missing or not
tightened securely.
If the check engine li ght remains on, or it
flashes continuously , do not drive at high
speeds and consult an Authorized Mazda
Dealer as soon as possible.
WA R N I N G
If the check engine light turns on, do not
disconnect the battery cables.
If the battery cables are disconnected and
then reconnected, the engine could be
damaged and catch on fire.
▼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 Authorized
Mazda Dealer as soon as possible.
▼ AWD Warning Indication/Warning
Light*
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-30*Some models.
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“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 at an Authorized Mazda
Dealer.
When 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 f ollowing conditions.
Park the vehicle in a safe place and check
that the warning indi cation light turns off/
the warning light stops flashing, and then
drive the vehicle. Contact an Authorized
Mazda Dealer if the indication is
continuously displayed.
When the differential oil temperature is
excessively high.
When there is a large difference between
the front and rear wheel rotation, such as
when trying to remove the vehicle from
mud.
“Mismatched Tire 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 tire sizes or tire pressures on all 4
wheels. Contact an Authorized Mazda
Dealer if the indication remains on or the
warning light remains illuminated.
When any of the tire diameter is
different.
When any of the tire pressure is
incorrect.
▼ 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
Authorized Mazda Dealer.
▼Air Bag/Front 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 Authorized Mazda Dealer as
soon as possible. The system may not
operate in an accident.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-31
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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.
▼Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Flashing)
If there is a problem with the TPMS or the
voltage of a tire pressure sensor decreases,
the TPMS warning light flashes and a
message is displayed on the
multi-information
display. Have your
vehicle inspected by an Authorized Mazda
Dealer.
WA R N I N G
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.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to drive the vehicle while
ignoring the illumination/flashing of the
TPMS warning light is dangerous because a
tire may burst which could lead to an
accident. Take appropriate measures as
soon as possible.
▼ KEY Warning Indication/Warning
Light (Red)
“Keyless Entry System Malfunction.
Have the Vehicle Inspected” is displayed
This message is displayed if the advanced
keyless entry & push button start system
has a problem.
Contact an Authorized Mazda Dealer.
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 Authorized Mazda Dealer as soon as
possible.
Refer to Emergency Operation for Starting
the Engine on page 4-9.
“Low Key Fob Battery. Replace
Battery” is displayed
When the key battery is low, the indication
is displayed when the ignition is switched
OFF.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-32
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“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)
▼High Beam Control System (HBC)
Warning Indication/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 7-26.
▼Exterior Light Warning Indication/
Wa r ni ng L i g h t
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.
▼Low Fuel Warning Indication/
Wa r ni ng L i g h t
The light turns on when the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal). If
you continue to drive after the light turns
on without refueling and the fuel gauge
reaches nearly empty, the light flashes.
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.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-33
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▼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 rei
nstall the fuel-filler
cap.
Refer to Refueling on page 3-27.
▼ Engine Oil Level Warning
Indication/Warning Light
This warning light
indicates that the
engine oil level is around the MIN mark
(page 6-16).
Action to be taken
Add 1 L (0.3 US gal, 0.2 Imp gal) of
engine oil (page 6-15).
▼ Seat Belt Warning Indication/
Warning Light (Front seat)
Except Mexico
The seat belt warning
light turns on if the
driver or front passeng er'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 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 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
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
passenger's seat, the warning light may
not operate.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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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 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 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.
To allow the front passenger seat weight
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
passenger's seat, the warning light may
not operate.
Action to be taken
Fasten the seat belts.
▼ Seat Belt Warning Light (Rear seat)
(Red)
If the rear seat belts are not fastened while
the ignition is swit
ched ON , the driver
and the passenger are alerted by the
warning light.
The warning light operates even if there is
no passenger on the rear seat.
NOTE
If a rear seat belt is not fastened by a
certain period of time after the engine has
been started, the warning light turns off.
Action to be taken
Fasten the seat belts.
▼ Low Washer Fluid Level Warning
Indication/Warning Light*
This warning light indicates that little
washer fluid remains.
Action to be taken
Add washer fluid (page 6-19).
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-35
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▼Door-Ajar/Trunk lid-Ajar/
Liftgate-Ajar Warning Indication/
Warning Light
The light turns on if
any door/trunk lid/
liftgate is not closed securely.
Action to be taken
Close the door/trunk lid/liftgate securely.
▼ Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Turns on)
If a tire pressure d
ecreases below the
specified air pressure, the TPMS warning
light turns on.
At the same time, a message and the tire
pressure of each tire are displayed on the
multi-information disp lay alternately. In
addition, the tire (s) with low air pressure
is displayed in yellow.
WA R N I N G
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.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to drive the vehicle while
ignoring the illumination/flashing of the
TPMS warning light is dangerous because a
tire may burst which could lead to an
accident. Take appropriate measures as
soon as possible.
NOTE
While the TPMS is learning the tire
positions, such as immediately after a tire
position has been changed, the tire
pressure at the tire position prior to it
being changed is displayed until the
system completes the learning. For this
reason, the tire pressures displayed for the
tire positions may be different from the
actual tire pressures at the tire positions.
Action to be taken
Adjust the tire pressu res to the appropriate
pressures.
Refer to Tire Inflation Pressure on page
6-30.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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CAUTION
Adjust the tire pressures while the tires
are cool. Because the air pressure in the
tires
fluctuates depending on the
temperature, before adjusting the tire
pressures, let the vehicle sit for an hour or
drive it only within a 1.6 km (1 mile)
distance. If the tire pressures are adjusted
while the tires are warm, the tire
pressures may decrease below the
specified air pressure after cooling down
which could turn on the warning light. In
addition, because the air pressure in the
tires decreases when the ambient
temperature is low, if the ambient
temperature increases, an illuminated
TPMS warning light may turn off. Under
any circumstances, always adjust the tire
pressures while the tires are cool.
 After adjusting the tire pressures, the
TPMS warning light turns off. If the TPMS
warning light does not turn off, drive the
vehicle at a speed of about 25 km (16
mph) or faster for 3 minutes or longer
and make sure the warning light turns
off.
If the TPMS warning light remains on
even after adjusting the tire pressures, one
of the tires may have a puncture.
Refer to Changing a Flat Tire on page 7-7.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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