2021 MAZDA MODEL 3 HATCHBACK Owners Manual

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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▼Tachometer
The tachometer shows engine speed in
thousands of revolutions per minute
(rpm).
CAUTION
Do not run the engine with the
tachometer needle in the RED ZONE.
This may cause severe engine damage.

1. STRIPED ZONE*1
2. RED ZONE*1
*1 The range varies depending on the type of
gauge.
NOTE
When the tachometer needle enters
the STRIPED ZONE, this indicates to
the driver that the gears should be
shifted before entering the RED ZONE.
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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