2021 MAZDA MODEL 3 HATCHBACK battery

Turning the Engine Off
▼Turning the Engine
Off
WARNING
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 and 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 o ff.
CAUTION
 When leaving the vehicle, make sure
the push button start is o ff.
NOTE
(SKYACTIV -G 2.0, SKYACTIV -G 2.5)
The cooling fan in the engine
compartment could turn on for a few
minutes after the ignition is switched
from ON to OFF, whether or not the
A/C is on or o ff, 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 6-31.
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 pressing it any number
of times while the engine is running or
the vehicle is being driven will turn the
engine
off immediately. The ignition
switches to ACC.
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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▼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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Active Driving Display*
▼Active Driving Display
1. Display
2. Dust-proof sheet
WARNING
Always adjust the display brightness
and position with the vehicle stopped:
Adjusting the display brightness and position while driving the vehicle is dangerous
as doing so could distract your attention from the road ahead and lead to an
accident.
CAUTION
 Do not place beverages near the dust-proof sheet of the active driving display. If
water or other liquids are splashed on the dust-proof sheet, it could cause
damage.
 Do not place objects or apply stickers above the active driving display or to the
dust-proof sheet as they will cause interference.
NOTE
Wearing polarized sunglasses wi ll reduce the visibility of the active driving display
due to the characteristics of the display.
If the battery has been removed and re-insta lled or the battery voltage is low, the
adjusted position may deviate.
The display may be di fficult to view or temporarily a ffected by weather conditions
such as rain, snow, light, and temperature.
If the audio system is removed, the active driving display cannot be operated.
When Driving
Instrument Cluster and Display
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Lighting Control
▼Headlights
Turn the headlight switch to turn the head
lights and other exterior lights on or off.
When the taillights, parking lights, license plate lights, and the side-marker lights are
turned on, the lights-on indicator light in the instrument cluster turns on.

NOTE
If the light switch is left on, the lights will automatically switch o ff approximately
30 seconds after switching the ignition o ff.
The time setting can be changed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
To prevent discharging the battery, do no t leave the lights on while the engine is
o ff unless safety requires them.
Without auto-light control
Switch Position OFF
Headlights Off Off
On*1
Daytime running lights On*2On*2Off
Taillights
Parking lights
License plate lights
Side-marker lights Off
On
*3On*1
*1 When the ignition is switched from ON to ACC or OFF, the headlights turn o ff if the auto headlight
o ff function has been canceled. If the auto headlight
off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn
off.
When Driving
Switches and Controls
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Using these garage door openers can
increase the risk of serious injury or
death. For further in formation, contact
HomeLink at www.homelink.com or
www.youtube.com/HomeLinkGentex
or an Authorized Mazda Dealer.
Always check the areas surrounding
garage doors and gates for people or
obstructions before programming or
during operation of the HomeLink
system:
Programming or operating the
HomeLink system without verifying the
safety of areas surrounding garage
doors and gates is dangerous and
could result in an unexpected accident
and serious injury if someone were to
be hit.
NOTE
The programming will not be erased
even if the battery is disconnected.
▼ Pre-programming the HomeLink
System
NOTE
It is recommended that a new battery
be placed in the hand-held transmitter
of the device being programmed to
HomeLink for quic
ker training and
accurate transmission of the
radio-frequency signal.
Verify that there is a remote control
transmitter available for the device
you would like to program.
▼ Programming the HomeLink
System
The HomeLink system provides 3
buttons which can be individually
selected and programmed using the
transmitters for current, on-market
devices as follows:
1. Press and release the HomeLink
button you would like to program.
The indicator light flashes slowly in
amber when the button is pressed.
1. Indicator light
2. HomeLink button
2. Hold the hand-held transmitter 2.5
to 7.5 cm (1 to 3 in) away from the
HomeLink button you would like to
program while keeping the
indicator light in view.
NOTE
Depending on the hand-held
transmitter, it may be easier to do
the programming by holding it 15
to 20 cm (6 to 7.8 in) away from
the HomeLink button.
3. Press the hand-held transmitter button continuously until the
indicator light changes from amber
(fl ashing) to green
(on/flashing).
When Driving
Switches and Controls
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1. Press the two outer HomeLinkbuttons continuously at the same
time until the indicator light flashes.
1. HomeLink button 3
2. HomeLink button 1

2. Stop pressing the HomeLink buttons.
▼Garage Door Two-Way
Communication
The garage door two-way
communication is a function that
communicates with the garage door
opener and indicates whether the
garages door is open or closed using
the indicator lights in the rear view
mirror. It can indicate the status of the
garage door within a range up-to 250
m (820 ft).
NOTE
The communication range may shorten
depending on obstructions.
Programming two-way
communication
Within
five seconds after programming
a new HomeLink button, both of the
garage door status indicator lights will
fl ash rapidly in green indicating that
the garage door two-way
communication has been established.
If the garage door status indicator
lights flash, the two-way
communication programming is
complete.

If the garage door status indicator
lights do not flash, the two-way
communication programming is not
completed. For additional HomeLink
information and programming videos,
refer to the following Websites:
www.HomeLink.comwww.youtube.com/
HomeLinkGentex
Operating the garage door two-way
communication
By pressing HomeLink buttons 1 and 2
at the same time for two seconds, the
status of the garage door is indicated
for about 3 seconds as follows:
1. HomeLink button 2
2. HomeLink button 1
Garage door status Indicator light
Closing Amber
flashes
Opening Amber
flashes
Closed Green turns on
Opened Green turns on
NOTE
The programming will not be erased
even if the battery is disconnected.
When Driving
Switches and Controls
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▼Electric Parking Brake (EPB)
The EPB system applies the parking
brake using an electric motor. The
system can operate automatically and
manually.
The EPB switch indicator light turns on
when applying the parking brake and it
turns off
when releasing the parking
brake.
1. Indicator light
WARNING
Do not drive the vehicle with the
parking brake applied:
If the vehicle is driven with the parking
brake applied, the brake parts may
generate heat and the brake system
may not operate, leading to an
accident.
Before driving the vehicle, release the
parking brake and make sure that the
EPB indicator light in the instrument
cluster turns off.
Apply the parking brake when leaving
the vehicle:
Not applying the parking brake when
parking the vehicle is dangerous as the
vehicle may move unexpectedly and
result in an accident. Before leaving the
vehicle, apply the parking brake and
make sure that the EPB indicator light
in the instrument cluster turns on.
NOTE
The parking brake cannot be applied
or released while the vehicle battery
is dead.
Refer to If a Jump-Starting on page
7-17.
When the charging system warning
light in the instrument cluster turns
on, the parking brake cannot be
applied after switching the ignition
OFF. Before switching the ignition
OFF, apply the parking brake
manually.
The sound of the parking brake being
applied or released can be heard,
however, this does not indicate a
problem.
If the EPB is not used for long
periods, an automatic inspection of
the system is performed while the
vehicle is parked. An operation
sound can be heard, however, this
does not indicate a problem.
When applying the parking brake
and switching OFF the ignition, an
operation sound can be heard,
however, this does not indicate a
problem.
The brake pedal may move while
applying or releasing the parking
brake, however, this does not
indicate a problem.
When Driving
Brake
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