2020 MAZDA MODEL 3 HATCHBACK fuel

If the key is left in the following areas
and you leave the vehicle, the doors may
be locked depending on the radio wave
conditions even if the key is left in the
vehicle.
Around the dashboard
In the storage compartments such as
the glove compartment or the center
console
On the rear parcel shelf (4–door)
Next to a communication device such
as a mobile phone
When the ignition is switched to ACC or
ON, the vehicle lock-out prevention
feature prevents you from locking
yourself out of the vehicle.
All doors, fuel-filler lid, and liftgate will
automatically unlock if they are locked
using the power door locks with any
door or the liftgate open.
The vehicle lock-out prevention feature
does not operate while the ignition is
switched off.
When all doors, fuel-filler lid, and
liftgate are locked using the power door
lock with any door or the liftgate/trunk
lid open, the closed doors, fuel-filler lid,
and liftgate are locked. After that, when
all doors and the liftgate/trunk lid are
closed, all doors and the liftgate/trunk
lid are locked. However, if the key is
inside the vehicle, all doors, fuel-filler
lid, and liftgate are automatically
unlocked.
(With the advanced keyless function)
The beep sound is heard for about 10
seconds to notify the driver that the key
has been left in the vehicle.
(Without the advanced keyless
function)
The horn sound is heard twice to notify
the driver that the key has been left in
the vehicle.
(Door unlock (control) system with
collision detection)
This system automatically unlocks the
doors, fuel-filler lid, and liftgate in the
event the vehicle is involved in an
accident to allow passengers to get out
of the vehicle immediately and prevent
being trapped inside. While the ignition
is switched ON and in the event the
vehicle receives an impact strong
enough to inflate the air bags, all the
doors, fuel-filler lid, and liftgate are
automatically unlocked after about 6
seconds have elapsed from the time of
the accident.
The doors, fuel-filler lid, and liftgate
may not unlock depending on how an
impact is applied, the force of the
impact, and other conditions of the
accident.
If door-related systems or the battery is
malfunctioning, the doors, fuel-filler lid,
and liftgate will not unlock.
Before Driving
Doors and Locks
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You touch the sensing area of the
touch sensor while wearing gloves.
Foreign matter such as snow or dirt is
stuck on the sensing area of the touch
sensor.
You pull the door handle just after
touching the sensing area of the touch
sensor.
The system may operate if the outer side
door handle of a front door is splashed
with water by a car wash or rain while
the transmitter is in the operation range.
If the system does not operate even
though you touch the sensing area of the
touch sensor correctly, release the touch
sensor once, and then touch the sensing
area of the touch sensor again after
waiting about 3 seconds.
Locking
When locking, touch the sensing area of
the door lock touch sensor with all of the
following conditions met.
The ignition is switched OFF.
All the doors are closed.
You are carrying the transmitter.
The following locations are locked by
touching the sensing area of the door lock
touch sensor.
All doors
Fuel-filler lid
Liftgate
When locking, the hazard warning lights
and sound operate one time.
Unlocking
When unlocking, touch the sensing area of
the door release touch sensor with all of
the following conditions met.
The ignition is switched OFF.
The driver’s door is locked.
Three seconds or longer have passed
since the doors were locked.
You are carrying the transmitter.
(Unlocking from the driver's door)
The following locations are unlocked by
touching the sensing area of the door
release touch sensor of the driver's door.
Driver’s door
Fuel-filler lid
NOTE
The location to be unlocked can be
changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When unlocking, the hazard warning
lights and sound operate two times.

(Unlocking from the front passenger’s
door)
The following locations are unlocked by
touching the sensing area of the door
release touch sensor of the front
passenger's door.
All doors
Fuel-filler lid
Liftgate
When unlocking, the hazard warning
lights and sound operate two times.
NOTE
Confirm that all the doors and liftgate/
trunk lid are securely locked.
For the liftgate/trunk lid, move it
without pressing the electric liftgate/
trunk lid opener to verify that the
liftgate/trunk lid has not been left ajar.
Before Driving
Doors and Locks
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A beep sound is heard for confirmation
when the doors, fuel-filler lid, and
liftgate are locked/unlocked using the
touch sensor. If you prefer, the beep
sound can be turned off.
The volume of the beep sound can also
be changed. Refer to the Settings section
in the Mazda Connect Owner's Manual.
(With theft-deterrent system)
The hazard warning lights flash when
the theft-deterrent system is armed or
turned off.
Refer to Theft-Deterrent System on page
3-42.
The setting can be changed so that the
doors, fuel-filler lid, and liftgate are
locked automatically without touching
the sensing area of the touch sensor.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(Walk-away auto lock function)
A beep sound is heard when all doors
and the liftgate/trunk lid are closed
while the transmitter is being carried.
All the doors, fuel-filler lid, and liftgate
are locked automatically when the
transmitter is out of the operational
range. Also, the hazard warning lights
flash once. (Even if the driver is in the
operational range, all the doors,
fuel-filler lid, and liftgate are locked
automatically after about 30 seconds.) If
you are out of the operational range
before the doors and the liftgate/trunk
lid are completely closed or another
transmitter is left in the vehicle, the
walk-away auto lock function will not
work. Always make sure that all doors
and the liftgate/trunk lid are closed and
locked before leaving the vehicle. The
walk-away auto lock function does not
close the power windows.
(Auto re-lock function)
After unlocking with the touch sensor,
all the doors , fuel-filler lid, and liftgate
will automatically lock if any of the
following operations are not performed
within about 60 seconds.
Opening a door or the liftgate/trunk
lid.
Switching the igniti on to any position
other than off.
If your vehicle has a theft-deterrent
system, the hazard warning lights will
flash for confirmation.
The time required for the doors to lock
automatically can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
▼ Locking, Unlocking with
Transmitter
The following locations can be locked/
unlocked by operating the keyless entry
system transmitter.
Refer to Keyless Entry
System (page 3-4).
All doors
Fuel-filler lid
Liftgate
▼ Locking, Unlocking with Door-Lock
Switch
Door-lock switch on driver’s and front
passenger's door
The following locations are locked/
unlocked by pressing the door-lock switch.
All doors
Fuel-filler lid
Liftgate
Before Driving
Doors and Locks
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Driver's door
1. Unlock
2. Lock
Front passenger's door
1. Unlock
2. Lock
Locking from the outside using the
door-lock switch
When locking from the outside using the
door-lock switch, press the lock side of the
door-lock switch with all of the following
conditions met and then close all the
doors.
The ignition is switched OFF.
Any door is open.
NOTE
To prevent the transmitter from being
left in the vehicle, make sure that you
carry the transmitter before locking.
After locking by pressing the door-lock
switch and when all the doors are closed
with the transmitter left in the vehicle,
all the doors, liftgate, and fuel-filler lid
are unlocked.
After locking by pressing the door-lock
switch and when the liftgate/trunk lid is
closed last with th e transmitter left in
the vehicle, only the liftgate/trunk lid is
unlocked.

Door-lock switch on liftgate (With the
advanced keyless function)
All doors, fuel-filler lid, and the liftgate
can be locked by pressing the door-lock
switch.

When locking using the door-lock switch,
press the door-lock switch with all of the
following conditions met and then close
the liftgate.
You are carrying the transmitter.
The ignition is switched OFF.
All the doors are closed.
When locking, the hazard warning lights
and a beep sound operate 1 time.
Before Driving
Doors and Locks
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NOTE
To prevent the transmitter from being
left in the vehicle, make sure that you
carry the transmitte r before locking.
After locking by pressing the door-lock
switch and when the liftgate is closed
with the transmitter left in the vehicle,
the liftgate is unlocked.
▼Auto Lock/Unlock Function
WA R N I N G
Do not pull the inner handle on a front
door:
Pulling the inner handle on a front door
while the vehicle is moving is dangerous.
Passengers can fall out of the vehicle if the
door opens accidentally , which could
result in death or serious injury.
When the vehicle speed exceeds 20
km/h (12 mph), all the doors, fuel-filler
lid, and liftgate lock automatically.
When the ignition is sw
itched off, all the
doors, fuel-filler lid, and liftgate unlock
automatically.
The auto lock/unlock function settings can
be changed.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
▼ Locking, Unlocking with Door-Lock
Knob
Operation from inside
To lock any door from the inside, press the
door-lock knob.
To unlock, pull it outward.
This does not operate t
he other door locks.

1. Unlocked: Red indicator
2. Lock
3. Unlock

Before Driving
Doors and Locks
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Fuel and Engine Exhaust Precautions
▼Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use O
NLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.

To achieve maximum engine performance, use the specified fuel.
Fuel Octane Rating*1 (Anti-knock index)
Regular unleaded fuel 87 [(R+M)/2 method] or above (91 RON or ab ove)
*1 U.S. federal law requires that octane ratings be posted on gas station pumps.
Fuel with a rating lower than 87 octane (91 RON) will negativel y affect the emission control
system performance and could also cause engine knocking and ser ious engine damage.
CAUTION
USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic co nverter and oxygen sensors and will lead to
deterioration of the emission control system and or failures.
 This vehicle can only use oxygenated fuels containing no more than 10 % ethanol by
volume. Damage to the vehicle may occur when ethanol exceeds this recommendation, or
if the gasoline contains any methanol. Stop us ing gasohol of any kind if your vehicle engine
is performing poorly.
 Never add fuel system additives other than a Mazda genuine product, otherwise the
emission control system could be damaged. Consult an Authorized Mazda Dealer for
details.
Gasoline blended with oxygenates such as alcohol or ether compo unds are generally
referred to as oxygenated fuels. The common gasoline blend that can be used with your
vehicle is ethanol blended at no more than 10 %. Gasoline conta ining alcohol, such as
ethanol or methanol, may be marketed under the name "Gasohol".

Vehicle damage and drivability problems resulting from the use of the following may not be
covered by the warranty.
Gasohol containing mo re than 10 % ethanol.
Gasoline or gasohol containing methanol.
Leaded fuel or leaded gasohol.
Before Driving
Fuel and Emission
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▼Emission Control System
This vehicle is equipped with an emission
control system (the catalytic converter is
part of this system)
that enables the
vehicle to comply with existing exhaust
emissions requirements.
WA R N I N G
Never park over or near anything
flammable:
Parking over or near anything flammable,
such as dry grass, is dangerous. Even with
the engine turned off, the exhaust system
remains very hot after normal use and
could ignite anything flammable. A
resulting fire could cause serious injury or
death.
CAUTION
Ignoring the following precautions could
cause lead to accumulate on the catalyst
inside the converter or cause the converter
to get very hot. Either condition will
damage the converter and cause poor
performance.
 USE ONLY UNLEADED FUEL.
 Do not drive your Mazda with any sign of
engine malfunction.
 Do not coast with the ignition switched
off.
 Do not descend steep grades in gear with
the ignition switched off.
 Do not operate the engine at high idle for
more than 2 minutes.
 Do not tamper with the emission control
system. All inspections and adjustments
must be made by a qualified technician.
Do not push-start or pull-start this
vehicle.
NOTE
Under U.S. federal law, any
modification to the original-equipment
emission control system before the first
sale and registration of a vehicle is
subject to penalties. In some states, such
modification made on a used vehicle is
also subject to penalties.
While the engine is off, the sound of a
valve opening and closing can be heard
at the rear of the vehicle, however this
does not indicate an abnormality. The
vehicle has a self-checking device and it
operates while the engine is off.
▼ Engine Exhaust (Carbon monoxide)
WA R N I N G
Do not drive your vehicle if you smell
exhaust gas inside the vehicle:
Engine exhaust gas is dangerous. This gas
contains carbon mono
xide (CO), which is
colorless, odorless, and poisonous. When
inhaled, it can cause loss of consciousness
and death. If you smell exhaust gas inside
the vehicle, keep all windows fully open
and contact an Authorized Mazda Dealer
immediately.
Before Driving
Fuel and Emission
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Do not run the engine when inside an
enclosed area:
Running the engine inside an enclosed
area, such as a garage, is dangerous.
Exhaust gas, which contains poisonous
carbon monoxide, could easily enter the
cabin. Loss of consciousness or even death
could occur.
Open the windows or adjust the heating or
cooling system to draw fresh air when
idling the engine:
Exhaust gas is dangerous. When the vehicle
is stopped with the windows closed and the
engine running for a long time even in an
open area, exhaust gas, which contains
poisonous carbon monoxide, could enter
the cabin. Loss of consciousness or even
death could occur.
Clear snow from underneath and around
your vehicle, particularly the tail pipe,
before starting the engine:
Running the engine when a vehicle is
stopped in deep snow is dangerous. The
exhaust pipe could be blocked by the snow,
allowing exhaust gas to enter the cabin.
Because exhaust gas contains poisonous
carbon monoxide, it could cause loss of
consciousness or even death to occupants
in the cabin.Fuel-Filler Lid and Cap
▼Fuel-Filler Lid and Cap
WA R N I N G
When removing the fuel-filler cap, loosen
the cap slightly and wait for any hissing to
stop, then remove it:
Fuel spray is dangerous. Fuel can burn skin
and eyes and cause illness if ingested. Fuel
spray is released when there is pressure in
the fuel tank and the
fuel-filler cap is
removed too quickly.
Before refueling, stop the engine, and
always keep sparks and flames away from
the filler neck:
Fuel vapor is dangerous. It could be ignited
by sparks or flames causing serious burns
and injuries.
Additionally, use of the incorrect fuel-filler
cap or not using a fuel-filler cap may result
in a fuel leak, which could result in serious
burns or death in an accident.
Do not continue refueling after the fuel
pump nozzle shuts off automatically:
Continuing to add fuel after the fuel pump
nozzle has shut off automatically is
dangerous because overfilling the fuel tank
may cause fuel overflow or leakage. Fuel
overflow and leakage could damage the
vehicle and if the fuel ignites it could cause
a fire and explosion resulting in serious
injury or death.
Before Driving
Fuel and Emission
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