2020 MAZDA MODEL 3 HATCHBACK sensor

Advanced Keyless EntrySystem
*
▼Advanced Keyless Entry System
WA R N I N G
Radio waves from the key may affect
medical devices such as pacemakers:
Before using the key near people who use
medical devices, ask the medical device
manufacturer or your physician if radio
waves from the key will affect the device.
The advanced keyless function allows you
to lock/unlock the door, liftgate, and
fuel-filler lid, or open the liftgate/trunk lid
while carrying the key.

System malfunctions or warnings are
indicated by the foll
owing warning beeps.
Touch Sensor Inoperable Warning Beep
Refer to Touch Sensor Inoperable
Warning Beep (With the advanced
keyless function) on page 7-43.
Key Left-in-luggage Compartment/
Trunk Warning Beep
Refer to Key Left-in-luggage
Compartment/Trunk Warning Beep
(With the advanced keyless function) on
page 7-43.
Key Left-in-vehicle Warning Beep
Refer to Key Left-in-vehicle Warning
Beep (With the advanced keyless
function) on page 7-43.
NOTE
The advanced keyless entry system
functions can be deactivated to prevent
any possible adverse effect on a user
wearing a pacemaker or other medical
device. If the system is deactivated, you
will be unable to start the engine by
carrying the key. Consult an Authorized
Mazda Dealer for details. If the advanced
keyless entry system has been deactivated,
you can start the engine by following the
procedure indicated when the key battery
goes dead.
Refer to Engine Start Function When Key
Battery is Dead on page 4-8.
Before Driving
Advanced Keyless Entry System
*Some models.3-9
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Operational Range
▼Operational Range
The system operates only when the driver
is in the vehicle or within operational
range while the key is being carried.
NOTE
When the battery power is low, or in
places where there are high-intensity radio
waves or noise, the operational range may
become narrower or the system may not
operate. For determining battery
replacement, Refer to Keyless Entry
System on page 3-4.
▼Locking/Unlocking Using Touch
Sensor
1. Exterior antenna
2. 80 cm (31 in)
3. Operational range

NOTE
The system may not operate if you are
too close to the windows or door
handles.
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
▼ Locking Using Door-Lock Switch
(5–door)/Unlocking Using Electric
Opener
1. Exterior antenna
2. 80 cm (31 in)
3. Operational range
Before Driving
Advanced Keyless Entry System
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▼Unlocking with Auxiliary Key
Only the driver's door can be unlocked
using the auxiliary key.
Refer to Keys on page 3-2.
Insert the auxiliary key while the driver's
door handle is pulled and turn the key to
the unlock side. Turn the auxiliary key
back to its original position before
removing it.
NOTE
If you attempt to open the driver’s door
using an unauthorized auxiliary key, the
key cylinder will spin around but the door
will not unlock.
▼Locking, Unlocking with Touch
Sensor, Door Handle (With the
advanced keyless function)
By touching the sensing area of the touch
sensor, various locking/unlocking
operations can be done without taking the
key out of a bag or pocket.
There are two types of touch sensors used
for locking and unlocking, and each sensor
is built into the outer door handle on the
driver and front passenger's doors.
1. Sensing area of door lock touch sensor
(Depression on outer side of door
handle)
2. Sensing area of door release touch sensor (Inner side of door handle)
NOTE
When locking/unlocking with the
transmitter carried, securely touch the
sensing area of the touch sensor as
follows.
Locking
Unlocking
The system may not operate normally
under the following conditions.
You touch the sensing area of the door
lock touch sensor and the sensing
area of the door release touch sensor
at the same time.
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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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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CAUTION
Always use only a genuine Mazda
fuel-filler cap or an approved equivalent,
available at an Authorized Mazda
Dealer. The wrong cap can result in a
serious malfunction of the fuel and
emission control systems.
(U.S.A. and Canada)
It may also cause the check engine light
in the instrument cluster to illuminate.
 When using an automatic car wash or a
high water pressure car wash, lock the
driver's door. Otherwise, the fuel-filler lid
may open unexpectedly and could be
damaged.
▼ Refueling
Before refueling, close all the doors,
windows, and liftgate/trunk lid, and switch
the ignition OFF.
1. Using the following, unlock the
driver’s door.
Transmitter (page 3-15)
Touch sensor (page 3-13)
Door-lock switch (page 3-15)
Auto lock/unlock function (page
3-17)
NOTE
When unlocking the driver's door,
the fuel lid is also unlocked at the
same time.
When locking the driver's door, the
fuel lid is locked after 90 seconds.
The time until the fuel lid is locked
after locking the driver's door can be
changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
However, when the driver's door is
locked using the following functions,
the fuel lid is also locked at the same
time.
Auto lock/unlock function (page
3-17)
Auto re-lock function (page 3-5,
3-13)
2. Press the locat ion shown in the
illustration and open the fuel lid.

3. To remove the fuel-filler cap, turn it counterclockwise.
4. Attach the removed cap to the inner
side of the fu el-filler lid.

4–door
1. Fuel-filler lid
2. Fuel-filler cap

Before Driving
Fuel and Emission
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To reactivate the auto-dimming function,
press the ON/OFF button (
). The
indicator light will illuminate.
1. ON/OFF button
2. Indicator light

NOTE
Do not use glass cleaner or suspend
objects on or around the light sensor.
Otherwise, light sensor sensitivity will
be affected and may not operate
normally.
1. Light sensor

(With Homelink wireless control
system)
For information regarding the 3 buttons
(
,,) on the auto-dimming mirror.
Refer to HomeLink Wireless Control
System on page 4-58.
The auto-dimming function is canceled
when the ignition is switched ON and
the shift lever/selector lever is in the R
position.
Before Driving
Mirrors
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