warning light MAZDA MODEL 3 HATCHBACK 2020 Owners Manual (in English)

Noise may occur on the audio playback
depending on the device connected to
the accessory socket.
 Depending on the device connected to
the accessory socket, the vehicle's
electrical system may be affected, which
could cause the warning light to
illuminate. Disconnect the connected
device and make sure that the problem is
resolved. If the problem is resolved,
disconnect the device from the socket
and switch the ignition off. If the problem
is not resolved, consult an Authorized
Mazda Dealer.
NOTE
To prevent discharging of the battery, do
not use the socket for long periods with the
engine off or idling.
Connecting the accessory socket
1. Open the lid.
2. Pass the connection plug cord through
the cutout of the console and insert the
plug into the accessory socket.

1. Plug
Cup Holder
▼ Cup Holder
WA R N I N G
Never use a cup holder to hold hot liquids
while the vehicle is moving:
Using a cup holder to hold hot liquids while
the vehicle is moving is dangerous. If the
contents spill, you could be scalded.
Do not put anything other than cups or
drink cans in cup holders:
Putting objects other than cups or drink
cans in a cup holder is dangerous.
During sudden braking or maneuvering,
occupants could be hit and injured, or
objects could be thrown around the
vehicle, causing interference with the driver
and the possibility of an accident. Only use
a cup holder for cups or drink cans.
Interior Features
Interior Equipment
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For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
® (Mexico only).


(Mexico)
Use API SM or higher, or ILSAC GF-IV
or higher/SAE 5W-30 engine oil. If SAE
5W-30 engine oil is not available, use SAE
5W-20 engine oil.

The quality designation SM, or ILSAC
must be on the label.

▼ Inspecting Engine Oil Level
NOTE
If the engine oil level warning
indication/warning light turns on, add 1
L (0.3 US gal, 0.2 Imp gal) of engine oil.
1. Be sure the vehicle is on a level surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes
for the oil to retur n to the oil pan.
4. Pull out the dipstic k, wipe it clean, and
reinsert it fully.

1. MAX
2. OK
3. MIN

Maintenance and Care
Owner Maintenance
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The following conditions indicate that the
battery power is low:
The KEY warning indication/warning
light (red) in the instrument cluster turns
on and a message, “Low Key Fob
Battery. Replace Battery”, is displayed
on the multi-information display when
the ignition is switched OFF.
The system does not operate and the
operation indicator light on the
transmitter does not flash when the
buttons are pressed.
The system's operational range is
reduced.
Replacing the battery at an Authorized
Mazda Dealer is recommended to prevent
damage to the key. If replacing the battery
by yourself, follow the instruction.
Replacing the key battery
1. Remove the lower cover while pressing the knob in the direction of
the arrow.
2. Press in the tab to unlock the upper
cover.
3. Insert a tape-wrapped flatheadscrewdriver into the gap and slide it in
the direction of the arrow.
4. Twist the flathead s crewdriver in the
direction of the arrow and remove the
upper cover.
Maintenance and Care
Owner Maintenance
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7If Trouble Arises
Helpful information on what to do if a problem arises with the vehicle.
Parking in an Emergency................. 7-2 Parking in an Emergency..............7-2
Flat Tire.............................................. 7-3 Spare Tire and Tool Storage......... 7-3
Changing a Flat Tire..................... 7-7
Battery Runs Out............................ 7-17 Jump-Starting............................. 7-17
Emergency Starting.........................7-20 Starting a Flooded Engine.......... 7-20
Push-Starting.............................. 7-20
Overheating......................................7-21 Overheating................................ 7-21
Emergency Towing.......................... 7-23 Towing Description.................... 7-23
Tiedown Hooks
*......................... 7-24
Warning/Indicator Lights and
Warning Sounds.............................. 7-27If a Warning Light Turns On or
Flashes........................................ 7-27
Message Indicated on Multi-
information Display.................... 7-38
Warning Sound is Activated....... 7-41
When Liftgate/Trunk Lid Cannot be
Opened..............................................7-46 When Liftgate/Trunk Lid Cannot be
Opened........................................7-46
Active Driving Display Does Not
Operate............................................. 7-48 If the Active Driving Display Does
Not Operate
*............................... 7-48
Windshield Wipers Operate at High
Speed.................................................7-49 Windshield Wipers Operate at High
Speed.......................................... 7-49
*Some models.7-1
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Parking in an Emergency
▼Parking in an Emergency
The hazard warning lights should always
be used when you stop on or near a
roadway in an emergency.

The hazard warning lights warn other
drivers that your vehicle is a traffic hazard
and that they must take extreme caution
when near it.

Depress the hazard warning flasher and all
the turn signals wi
ll flash. The hazard
warning indicator lights in the instrument
cluster flash simultaneously.
NOTE
The turn signals do not work when the
hazard warning lights are on.
Check local regulations about the use of
hazard warning lights while the vehicle
is being towed to verify that it is not in
violation of the law.
If Trouble Arises
Parking in an Emergency
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If a Warning Light TurnsOn or Flashes
▼If a Warning Light Turns On or
Flashes
If any warning light turns on/flashes, take
appropriate action for each light. There is
no problem if the light turns off, however
if the light does not
turn off or turns on/
flashes again, consult an Authorized
Mazda Dealer.
The details for some warnings can be
viewed on the center display or
multi-information display in the
instrument cluster.
Center display
1. Select “Information” on the home
screen.
2. Select “Vehicle Status Monitor”.
3. Select the applicable warning to view the warning details.
NOTE
You can also display the currently
occurring warning by sliding the
commander knob to the left while on the
home screen of the center display.
Multi-information display
1. Press the INFO switch on the steeringswitch to displa y the warning
indication screen.
Refer to Multi-information Display on
page 4-14.
▼ Brake System Warning Indication/
War ni ng L i gh t
This warning has the following functions:
Warning light inspection
For an operation check
, make sure that the
light turns on when the ignition is
switched on, and turns off a few seconds
later or when the engine is started.
When the light turns on
If the brake system warning light remains
illuminated the brak e fluid may be low or
there could be a problem with the brake
system. Park the vehicle in a safe place
immediately and contact an Authorized
Mazda Dealer.
Refer to Inspecting Brake/Clutch Fluid
Level on page 6-19.
WA R N I N G
Do not drive with the brake system
warning light illuminated. Contact an
Authorized Mazda Dealer to have the
brakes inspected as soon as possible:
Driving with the brake system warning
light illuminated is dangerous. It indicates
that your brakes may not work at all or
that they could completely fail at any time.
If this light remains illuminated, after
checking that the parking brake is fully
released, have the brakes inspected
immediately.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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CAUTION
In addition, the
effectiveness of the
braking may diminish so you may need
to depress the brake pedal more strongly
than normal to stop the vehicle.

▼ 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.
WA R N I N G
Do not drive with both the brake system
warning light and ABS warning light
illuminated. Have the vehicle towed to an
Authorized Mazda Dealer 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 Authorized
Mazda Dealer.
CAUTION
Do not continue driving when the charging
system warning light is illuminated
because the engine could stop
unexpectedly.
▼ Engine Oil Warning Indication/
Wa r n i n g L i g h t
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:
1. Drive to the side of the road and park
off the right-of-wa y on level ground.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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2. Turn off the engine and wait 5 minutesfor the oil to drain back into the oil
pan.
3. Inspect the engine oil level (page 6-16). 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
Authorized Mazda Dealer.
▼ 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 redu
ce 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 Overheati ng on page 7-21.
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. Contact an Authorized
Mazda Dealer if the message is displayed
continuously.
NOTE
If 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
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Repeatedly 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 Authorized
Mazda Dealer as soon as possible.
NOTE
When the engine is jump-started to
charge the battery, uneven rpm occurs
and the ABS warning light may
illuminate. If this o ccurs, it is the result
of the weak battery and does not
indicate an ABS malfunction.
Recharge the battery.
The 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 center display or
multi-information display.
Refer to If a Warning Light Turns On or
Flashes on page 7-27.
▼Brake Control System Warning
Indication/Warning Light
The warning light i
lluminates when the
system has a malfunction. Have your
vehicle inspected at an Authorized Mazda
Dealer.
▼ Electric Parking Brake (EPB)
Indication/Indicator Light
This warning has the following functions:
Parking brake warning/Indicator light
inspection
The light illuminate
s when the parking
brake is applied with the ignition switched
to START or ON. It turns off when the
parking brake is released.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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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.
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
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 light 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
*Some models.7-31
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