key MAZDA MODEL 3 HATCHBACK 2020 (in English) Owner's Guide

Have your vehicle inspected at an
Authorized Mazda Dealer as soon as
possible.
NOTE
Under the following conditions, the
KEY warning indication (red) is
displayed after the push button start
is pressed. This informs the driver
that the push button start will not
switch to ACC, even if it is pressed
from off (page 7-33).
The key battery is dead.
The key is out of operational
range.
The key is placed in areas where it
is difficult for the system to detect
the signal (page 3-7).
A key from another manufacturer
similar to the key is in the
operational range.
(Forced engine starting method)
If the KEY warning indication (red)
is displayed, or the push button start
indicator ligh t (amber) flashes, this
could indicate that the engine may
not start using the usual starting
method (page 7-33). Have your
vehicle inspected at an Authorized
Mazda Dealer as soon as possible. If
this occurs, the engine can be
force-started. Press and hold the
push button start until the engine
starts. Other procedures necessary
for starting the engine, such as
having the key in the cabin, and
depressing the clutch pedal (manual
transmission) or the brake pedal
(automatic transmission) are
required.
When the engine is force-started, the
KEY warning indication (red)
remains displayed and the push
button start indicator light (amber)
remains flashing.
(Automatic transmission)
When the selector lever is in the
neutral (N) position, the push button
start indicator light (green) does not
turn on.
7. Press the push button start after the
push button start indi cator light (green)
turns on.
NOTE
After starting the engine, the push
button start indicator light (amber)
turns off and the ignition switches to
the ON position.
After pressing the push button start
and before the engine starts, the
operation sound of the fuel pump
motor from near the fuel tank can be
heard, however, this does not
indicate a malfunction.
8. After starting the engine, let it idle for about 10 seconds.
NOTE
Whether the engine is cold or warm,
it should be started without the use
of the accelerator.
If the engine does not start the first
time, refer to Starting a Flooded
Engine under Emergency Starting. If
the engine still does not start, have
your vehicle inspected by an
Authorized Mazda Dealer (page
7-20).
When Driving
Start/Stop Engine
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▼Engine Start Fun
ction When Key
Battery is Dead
CAUTION
When starting the engine by holding the
transmitter over the push button start due
to a dead key battery or a malfunctioning
key, be careful not to allow the following,
otherwise the signal from the key will not
be received correctly and the engine may
not start.
 Metal parts of other keys or metal objects
touch the key.
Spare keys or keys for other vehicles
equipped with an immobilizer system
touch or come near the key.
 Devices for electronic purchases, or
security passage touch or come near the
key.
If the engine cannot be started due to a
dead key battery, the engine can be started
using the following procedure:
1. Continue to depress the brake pedal firmly until the engine has completely
started.
2. (Manual transmission)
Continue to depress the clutch pedal
firmly until the engine has completely
started.
(Automatic transmission)
Put the vehicle in park (P). If you must
restart the engine while the vehicle is
moving, shift into neutral (N).
3. Make sure that the push button start
indication light (green) flashes.
4. Align the center area of the emblem on the transmitter with t he center area of
the push button st art while the push
button start indicator light (green)
flashes.

1. Indicator light
2. Push button start
3. Transmitter
4. Emblem

5. Make sure that the push button start
indicator light (green) turns on.
6. Press the push butt on start to start the
engine.
NOTE
The engine cannot be started unless
the clutch pedal is fully depressed
(manual transmission) or the brake
pedal is fully depressed (automatic
transmission).
When Driving
Start/Stop Engine
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If there is a malfunction with the
push button start function, the push
button start indicator light (amber)
flashes. In this case, the engine may
start, however, have the vehicle
checked at an Authorized Mazda
Dealer as soon as possible.
If the push button start indicator
light (green) does not illuminate,
perform the operation from the
beginning again. If it does not
illuminate, have the vehicle checked
at an Authorized Mazda Dealer.
To switch the ignition position
without starting the engine, perform
the following operations after the
push button start indicator light
(green) turns on.
1. Release the clutch pedal (manual transmission) or brake pedal
(automatic transmission).
2. Press the push button start to switch the ignition position. The
ignition switches in the order of
ACC, ON, and off each time the
push button start is pressed. To
switch the igni tion position
again, perform the operation
from the beginning.
▼ Emergency Operation for Starting
the Engine
If the KEY warning indication (red) is
displayed, or the push button start
indicator light (amber) flashes, this could
indicate that the engine may not start using
the usual starting method. Have your
vehicle inspected at an Authorized Mazda
Dealer as soon as poss
ible. If this occurs,
the engine can be force-started. Press and
hold the push button start until the engine
starts. Other procedures necessary for
starting the engine such as having the key
in the cabin, and depressing the clutch
pedal (manual transmi ssion) or the brake
pedal (automatic transmission) are
required.
When Driving
Start/Stop Engine
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Turning the Engine Off
▼Turning the Engine Off
WA R N I N G
Do not stop the engine while the vehicle is
moving:
Stopping the engine while the vehicle is
moving for any reason other than in an
emergency is dangerous. Stopping the
engine while the vehicle is moving will
result in reduced braking ability due to the
loss of power braking, which could cause
an accident and serious injury.
1. Stop the vehicle completely.
2.
(Manual transmission)
Shift into neutral an d set the parking
brake.
(Automatic transmission)
Shift the selector lever to the P
position and set the parking brake.
3. Press the push button start to turn off
the engine. The ignition position is off.
CAUTION
When leaving the vehicle, make sure the
push button start is off.
NOTE
The cooling fan in the engine
compartment could turn on for a few
minutes after the i gnition is switched
from ON to OFF, whether or not the A/C
is on or off, to cool the engine
compartment quickly.
If the system detects that the remaining
battery power of the key is low when the
ignition is switched from ON to ACC or
OFF, the following is indicated.
Replace with a new battery before the
key becomes unusable.
Refer to Key Battery Replacement on
page 6-28.
A message is indicated in the display of
the instrument cluster.
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-33.
(Automatic transmission)
If the engine is turned off while the
selector lever is in a position other than
P, the ignition switches to ACC.
▼ Emergency Engine Stop
Continuously pressing the push button
start or quickly pressi
ng it any number of
times while the engin e is running or the
vehicle is being drive n will turn the engine
off immediately. The ignition switches to
ACC.
When Driving
Start/Stop Engine
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SignalWarning Refer to
Tire Pressure Monitoring System (TPMS) Warning Indication/Warning
Light*1
Flashing 7-33
Turns on 7-36
(Red) KEY Warning Indication/Warning Light
*17-33
(Amber)
*High Beam Control System (HBC) W
arning Indication/Warning Light*17-34
i-ACTIVSENSE Warning Indication/Warning Light*17-34
Exterior Light Warning Indication/Warning Light*17-34
Low Fuel Warning Indication/Warning Light 7-34
Check Fuel Cap Warning Indication/Warning Light*17-35
Engine Oil Level Warning Indication/Warning Light*17-35
Seat Belt Warning Indication/Warning Light (Front seat) 7-35
(Red)Seat Belt Warning Light (Rear seat) 7-36
*Low Washer Fluid Level Warning Indication/Warning Light
7-36
Door-Ajar Warning Indication
7-36
*Trunk lid-Ajar Warning Indication7-36
*Liftgate-Ajar Warning Indication7-36
When Driving
Instrument Cluster and Display
4-24*Some models.
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SignalWarning Refer to
Door-Ajar Warning Light 7-36
*1 The light turns on when the ignition is switched on for an operation check, and turns off a few seconds later or
when the engine is started. If t he light does not turn on or remains turned on, have the vehicle inspected at an
Authorized Mazda Dealer.
▼ Indication/Indicator Lights
These lights turn on or flash to
notify the user of the system operation status or a system
malfunction.
Signal Indicator Refer to
(Green)Seat Belt Indicator Light (Rear seat) 2-27
*Front Passenger Air Bag Deactivation Indicator Light
2-72
Security Indicator Light
3-41
(Green)KEY Indicator Light 4-5
Wrench Indication/Indicator Light*14-28
*Shift Position Indication
4-36
Lights-On Indicator Light
4-44
Headlight High-Beam Indicator LightHeadlight
High-Low Beam 4-47
Flashing the Headlights 4-47
When Driving
Instrument Cluster and Display
*Some models.4-25
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6Maintenance and Care
How to keep your Mazda in top condition.
Essential Information........................6-2 Introduction.................................. 6-2
Scheduled Maintenance.................... 6-4 Scheduled Maintenance................ 6-4
Owner Maintenance........................ 6-11 Owner Maintenance
Precautions..................................6-11
Hood........................................... 6-12
Engine Compartment
Overview.................................... 6-14
Engine Oil...................................6-15
Engine Coolant........................... 6-17
Brake/Clutch Fluid ..................... 6-19
Washer Fluid............................... 6-19
Body Lubrication...... .................. 6-20
Wiper Blades.............................. 6-21
Battery........................................ 6-26
Key Battery Replacement........... 6-28
Tires............................................ 6-31
Light Bulbs................................. 6-35
Fuses........................................... 6-38
Appearance Care............................. 6-44
Exterior Care.............................. 6-44
Interior Care................................6-50
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▼Battery Maintenance
To get the best service from a battery:
Keep it securely mounted.
Keep the top clean and dry.
Keep terminals and connections clean,
tight, and coated with petroleum jelly or
terminal grease.
Rinse off spilled electrolyte immediately
with a solution of water and baking
soda.
If the vehicle will
not be used for an
extended time, disconnect the battery
cables and charge the battery every 6
weeks.
▼ Battery Replacement
Contact an Authorized Mazda Dealer for a
battery replacement purchase.
Key Battery Replacement
▼ Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not flash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION

Make sure the battery is installed
correctly. Battery leakage could occur if it
is not installed correctly.
 When replacing the battery, be careful
not to touch any of the internal circuitry
and electrical terminals, bend the
electrical terminals, or get dirt in the
transmitter as the transmitter could be
damaged.
 There is the danger of explosion if the
battery is not correctly replaced.
 Dispose of used batteries according to
the following instructions.
 Insulate the plus and minus terminals
of the battery using cellophane or
equivalent tape.
 Never disassemble.
 Never throw the battery into fire or
water.
 Never deform or crush.
 Replace only with the same type battery
(CR2032 or equivalent).
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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CAUTION
Align the notch on the wheel cover with
the valve stem when installing it.

1. Notch
2. Tire valve

Damage could occur during
installation if the wheel cover is not
properly aligned.
2. Loosen the lug nuts by turning themcounterclockwise one turn each, but do
not remove any lug nuts until the tire
has been raised off the ground.

NOTE
If your Mazda is equipped with the
optional antitheft wheel lug nuts, a
special key must be used to unlock the
locking lug nut for each wheel. For
details, refer to the Locking Lug Nuts
on page 7-11.
3. Place the jack on the ground.
4. Turn the jack screw in the direction shown in the figure and adjust the jack
head so that it is close to the jack-up
position.

1. Jack head

If Trouble Arises
Flat Tire
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