fuel MAZDA MODEL 3 HATCHBACK 2021 Owner's Manual

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 di
fficult 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 light
(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 indicator light
(green) turns on.
NOTE
After starting the engine, the push
button start indicator light
(amber) turns o ff 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
Do not use high engine speeds
until reaching the operating
temperature.
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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Cylinder Deact ivat ion
▼Cylinder Deact ivat ion
The cylinder deactivation is a function
designed to reduce fuel consumption
and improve fuel economy by
deactivating 2 out of the 4 cylinders
while driving. The function constantly
determines which is better for driving;
4 cylinders or 2 cylinders, regardless of
the driver's operations, and it performs
the switching automatically.
When the cylinder deactivation
function does not operate
The cylinder deactivation function
does not operate under the following
conditions.
The selector lever is in the P, N, or R
position (automatic transmission), or
1st gear (manual transmission).
The engine oil temperature or engine
coolant temperature is low.
After disconnecting the battery
terminals for some reason, such as
for battery replacement.
When Driving
Start/Stop Engine
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Instrument Cluster andDisplay
▼Instrument Cluster and Display

ƒ
Instrument Cluster.......... page 4-12
„ Active Driving Display..... page 4-30
Instrument Cluster
▼Instrument Cluster

ƒ
Tachometer.................... page 4-13
„ Multi-information Display...............
..................................... page 4-14
… Engine Coolant Temperature
Gauge............................ page 4-17
† Fuel Gauge..................... page 4-17
‡ Dashboard Illumination
Switch............................ page 4-18
ˆ Speedometer..................page 4-12
‰ TRIP Switch.................... page 4-16
▼Speedometer
The speedometer indicates the speed
of the vehicle.
When Driving
Instrument Cluster and Display
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▼Multi-information Display
1. Multi-information Display
2. INFO switch

The multi-information display indicates the following information.
SpeedometerOdometerTr i p m e te rOutside temperatureDistance-to-emptyAverage fuel economyCurrent fuel economyi-ACTIVSENSE DisplayCompass DisplayDoor-Ajar/Trunk lid-Ajar/Liftgate-Ajar Warning Indication*1
Message Display
*1 Displayed when opening door/trunk lid/liftgate.
When Driving
Instrument Cluster and Display
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The screen content changes each time the INFO switch is pressed.
1. Basic display
2. Drive information display
3. i-ACTIVSENSE display
4. Message display
*1
*1 Displayed only when a warning occurs.

The type of display for the fuel economy and the maximum driving distance can be
changed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
When Driving
Instrument Cluster and Display
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▼Odometer, Trip Meter and Trip
Meter Selector
You can switch between the odometer
and trip meter display using the TRIP
switch.

1. TRIP switch
2. Odometer display
3. Trip meter A display
4. Trip meter B display
Odometer
The odometer records the total
distance the vehicle has been driven.
Tr i p m e te r
The driving distance for a
specified
interval is indicated. Two types (TRIP A,
TRIP B) of interval distance can be
measured.

For instance, trip meter A can record
the distance from the point of origin,
and trip meter B can record the
distance from where the fuel tank is
filled.

When trip meter A is selected, TRIP A
will be displayed. When trip meter B is
selected, TRIP B will be displayed.

The trip meter can be reset by pressing
the TRIP switch for 1.5 seconds or
more while the trip meter is displayed.
NOTE
Only the trip meters record tenths of
kilometers (miles).
When Driving
Instrument Cluster and Display
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▼Engine Coolant Temperature
Gauge
Displays the engine coolant
temperature. The blue range of the
gauge indicates that the engine coolant
temperature is low, and the red range
of the gauge indicates that the engine
coolant temperature is high and
overheating.

CAUTION
When the engine coolant temperature
gauge needle is in the red range, the
engine coolant temperature is
extremely high. Drive slowly to reduce
engine load. If the engine coolant
temperature gauge needle is in the red
range, there is the possibility of
overheating. Park the vehicle in a safe
place immediately and take
appropriate measures.
Refer to Overheating on page 7-21.
NOTE
If the engine or engine coolant
temperature is high or low, the
engine output may be restricted to
protect the engine.
▼Fuel Gauge
The fuel gauge shows approximately
how much fuel is remaining in the tank
when the ignition is switched ON. We
recommend keeping the tank over 1/4
full.

1. Full
2. 1/4 Full
3. Empty

When Driving
Instrument Cluster and Display
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If the low fuel warning light illuminates
or the fuel level is very low, refuel as
soon as possible.
If inconsistency in engine performance
or stalling occurs due to low fuel level
conditions, refuel the vehicle as soon
as possible and add at least 10 L (2.7
US gal, 2.2 Imp gal) of fuel.
Refer to Low Fuel Warning Indication/
Warning Light on page 7-35.
NOTE
After refueling, it may require some
time for the indicator to stabilize. In
addition, the indicator may deviate
while driving on a slope or curve
since the fuel moves in the tank.
The direction of the arrow ()
indicates that the fuel-filler lid is on
the left side of the vehicle.
▼ Dashboard Illumination
(Without auto-light control)
When the lights are turned on with the
ignition switched ON, the brightness of
the dashboard illumination is dimmed.
(With auto-light control)
When the lights are turned on with the
ignition switched ON, the brightness of
the dashboard illumination is dimmed.
However, when the light sensor
detects that the surrounding area is
bright such as when the lights are
turned on in the daytime, the
dashboard illumination does not dim.
NOTE
(With auto-light control)
When the ignition is switched ON in
the early evening or at dusk, the
dashboard illumination is dimmed
for several seconds until the light
sensor detects the brightness of the
surrounding area, however, the
dimming may cancel after the
brightness is detected.
When the lights are turned on, the
lights-on indicator light in the
instrument cluster turns on.
Refer to Headlights on page 4-46.
The brightness of the instrument panel
and dashboard illuminations can be
adjusted by pressing the dashboard
illumination switch while the
dashboard illumination is dimmed.
The brightness increases by pressing
the + switch.
The brightness decreases by pressing
the - switch. If you press the - switch
while the instrument cluster is at
maximum dimness, a sound is
activated to notify you that the
current dimmer setting is at
maximum dimness.

1. Bright
2. Dim
When Driving
Instrument Cluster and Display
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▼Distance-to-empty
This displays the approximate distance
you can travel on the remaining fuel
based on the fuel economy.
The distance-to-empty will be
calculated and displayed every second.

NOTE
Even though the distance-to-empty
display may indicate a su
fficient
amount of remaining driving distance
before refueling is required, refuel as
soon as possible if the fuel level is
very low or the low fuel warning light
illuminates.
The display will not change unless
you add more than approximately 9
L (2.3 US gal, 1.9 Imp gal) of fuel.
The distance-to-empty is the
approximate remaining distance the
vehicle can be driven until all the
graduation marks in the fuel gauge
indicating the remaining fuel supply
disappear.
If there is no past fuel economy
information such as after first
purchasing your vehicle or the
information is deleted when the
battery cables are disconnected, the
actual distance-to empty/range may di ffer from the amount indicated.
▼ Average Fuel Economy
The average fuel economy is calculated
every 30 seconds from the total
traveled distance on the trip meter and
the total fuel consumption, and the
average fuel economy for either drive
information display is displayed.
The average fuel economy is also
displayed by a red arrow in the
instantaneous fuel economy display.

The average fuel economy and trip
meters can be reset by pressing the
INFO switch for 1.5 seconds or more
while in each mode. After the data is
cleared, the fuel consumption is
recalculated and the - - - L/100 km
(- - - mpg) for the 30 seconds prior to
it being displayed is indicated.
▼Current Fuel Economy
This displays the current fuel economy
by calculating the amount of fuel
consumption and the distance
traveled.

When Driving
Instrument Cluster and Display
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NOTE
Indicates the 0 position when the
vehicle speed is about 5 km/h (3
mph) or slower.
The red arrow on the scale indicates
the average fuel economy.
▼i-ACTIVSENSE Display*
Displays the system status.

Refer to Lane Departure Warning
System (LDWS) on page 4-95.
Refer to Blind Spot Monitoring
(BSM) on page 4-99.
Refer to Tra
ffic Sign Recognition
System (TSR) on page 4-104.
Refer to Distance & Speed Alert
(DSA) on page 4-109.
Refer to Driver Attention Alert (DAA)
on page 4-111.
Refer to Driver Monitoring (DM) on
page 4-112.
Refer to Front Cross Tra ffic Alert
(FCTA) on page 4-113.
Refer to Mazda Rada r Cruise Control
(MRCC) on page 4-122.
Refer to Mazda Rada r Cruise Control
with Stop & Go function (MRCC
with Stop & Go function) on page
4-131.
Refer to Tra ffic Jam Assist (TJA) on
page 4-143.
Refer to Lane-keep Assist System
(LAS) on page 4-157.
Refer to Smart Brake Support (SBS)
on page 4-159.
Refer to Smart Brake Support [Rear] (SBS -R) on page 4-163.
Refer to Smart Brake Support [Rear
Crossing] (SBS -RC) on page 4-167.
Refer to Cruise Control on page
4-216.
▼Compass Display
The direction the vehicle is moving is
displayed in one of eight directions
while the vehicle is being driven.

Display
Direction
NN orth
SS outh
EE ast
WW est
NE Northeast
NW Northwest
SE Southeast
SW Southwest
When Driving
Instrument Cluster and Display
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