sensor MAZDA MODEL 3 HATCHBACK 2021 Owner's Guide

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 washer,
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 3-16)Touch sensor (page 3-13)Door-lock switch (page 3-16)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) and (page 3-13)
2. Press the location 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 fuel-filler lid.

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

Before Driving
Fuel and Emission
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(With ON/OFF button)
Press the ON/OFF button (
) to cancel
the auto-dimming function. The
indicator light will turn off .
To r e a c t i v a t e t h e a u t o - d i m m i n g
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 aff ected 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 4-60.
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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Theft-Deterrent System*
▼Theft-Deterrent System
If the theft-deterrent system detects an
inappropriate entry into the vehicle,
which could result in the vehicle or its
contents being stolen, the alarm alerts
the surrounding area of an abnormality
by sounding the horn and
flashing the
hazard warning lights.

The system will not function unless it's
properly armed. So when you leave the
vehicle, follow the arming procedure
correctly.
▼ Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights
flash for about
30 seconds when the system is
triggered by any one of the following:
Unlocking a door with the auxiliary
key, door lock switch, or an inside
door-lock knob.
Forcing open a door, the hood or the
liftgate/trunk lid.
Opening the hood by operating the
hood release handle.
Switching the ignition ON without
using the push button start.
If the system is triggered again, the
lights and horn will activate until the
driver's door or the liftgate/trunk lid is
unlocked with the transmitter.
(With the advanced keyless function)
The lights and horn can also be
deactivated by touching the sensing
area of the door release touch sensor.
NOTE
If the battery goes dead while the
theft-deterrent system is armed, the
horn will activate and the hazard
warning lights will flash when the
battery is charged or replaced.
▼ How to Arm the System
1. Close the windows and the
moonroof* securely.
2. Switch the ignition OFF.
3. Make sure the hood, the doors, and the liftgate/trunk lid are
closed.
4. Press the lock button on the transmitter.
The hazard warning lights will flash
once.
The following method will also arm
the theft-deterrent system:
Press the door-lock switch “
”
while any door is open and then
close all of the doors.
(With the advanced keyless
function)
Touch the sensing area of the door
lock touch sensor.

The security indicator light in the
instrument cluster flashes twice per
second for 20 seconds.
5. After 20 seconds, the system is fully armed.
Before Driving
Security System
3-42*Some models.
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NOTE
The theft-deterrent system can also
be armed by activating the auto
relock function with all the doors,
the liftgate/trunk lid and the hood
closed.
Refer to Transmitter on page 3-5.
The system will disarm if one of the
following operations takes place
within 20 seconds after pressing the
lock button:
Unlocking any door.Opening any door.Opening the hood.Switching the ignition ON.
To rearm the system, do the arming
procedure again.
When the doors are locked by
pressing the lock button on the
transmitter while the theft-deterrent
system is armed, the hazard warning
lights will flash once to indicate that
the system is armed.
▼ To Tu r n O
ff an Armed System
An armed system can be turned o ff
using any one of the following
methods:
Pressing the unlock button on the
transmitter.
Starting the engine with the push
button start.
(With the advanced keyless
function)
Touching the sensing area of the
door release touch sensor.
The hazard warning lights will flash
twice.
NOTE
When the doors are unlocked by
pressing the unlock button on the
transmitter while the theft-deterrent
system is turned o ff, the hazard
warning lights will flash twice to
indicate that the system is turned o ff.
▼ To S t o p t h e A l a r m
A triggered alarm can be turned o
ff
using any one of the following
methods:
Pressing the unlock button or the
trunk button (4–door) on the
transmitter.
Starting the engine with the push
button start.
(With the advanced keyless
function)
Touching the sensing area of the
door release touch sensor.
Pressing the electric liftgate/trunk
lid opener while the key is being
carried.
The hazard warning lights will flash
twice.
Before Driving
Security System
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Adaptive Front Lighting System
(AFS)
*................................. 4-90
High Beam Control System
(HBC)
*................................ 4-90
Lane Departure Warning System
(LDWS)
*.............................. 4-92
Blind Spot Monitoring (BSM)
*......
.......................................... 4-96 Tra ffic Sign Recognition System
(TSR)
*................................4-101
Distance & Speed Alert (DSA)
*.....
........................................ 4-108
Driver Attention Alert (DAA)
*.......
........................................ 4-109
Driver Monitoring (DM)
*.... 4-111
Front Cross Tra ffic Alert
(FCTA)
*............................. 4-113
Rear Cross Tra ffic Alert (RCTA)
*....
........................................ 4-116
Mazda Radar Cruise Control
(MRCC) (Manual
Transmission)
*....................4-120
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) (Automatic
Transmission)
*....................4-128
Tra ffic Jam Assist (TJA)
*....... 4-139
Lane-keep Assist System (LAS)
*.....
........................................ 4-154
Smart Brake Support (SBS)
*..........
........................................ 4-158
Smart Brake Support [Rear] (SBS-
R)
*.................................... 4-160
Smart Brake Support [Rear
Crossing] (SBS -RC)
*........... 4-164
360° View Monitor
*........... 4-168
Forward Sensing Camera
(FSC)
*............................... 4-203
Front Radar Sensor
*........... 4-207
Front Side Radar Sensor
*.... 4-209
Rear Side Radar Sensor
*..... 4-211
Rear/Rear corner/Rear Side
Ultrasonic Sensor
*.............. 4-212
Front Camera/Side Cameras/
Rear Camera
*.................... 4-213
Driver Monitoring Camera
*..........
........................................ 4-214
Cruise Control......................4-215 Cruise Control
*.................. 4-215
Tire Pressure Monitoring System
(TPMS)................................ 4-219 Tire Pressure Monitoring System
(TPMS)..............................4-219
Rear View Monitor................4-223 Rear View Monitor
*........... 4-223
Parking Sensor System........... 4-238 Parking Sensor System
*....... 4-238
4-2*Some models.
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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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*7 When the light switch is switched to a different position from the AUTO position while the vehicle is
stopped, the daytime running lights turn o ff. When starting to drive the vehicle, the daytime running
lights turn on again.
*8 If one of the following operations is done from the position while the vehicle is stopped, the
daytime running lights turn off.
Switch the light switch to the OFF position.
Switch the light switch to the AUTO position, and then to the position again.
Switch the light switch to the position.
When starting to drive the vehicle, the daytime running lights turn on again.
*9 When the ignition is switched from ON to ACC or OFF, the headlights remain on if the auto headlight off function has been canceled. If the auto headlight o ff function is enabled, the lights turn on for the
set period using the auto headlight o ff function, and then they turn o ff.
Auto-light control
When the headlight switch is in the AUTO position and the ignition is switched ON,
the light sensor senses the surrounding li ghtness or darkness and automatically turns
the headlights and other exterior lights on or off.
CAUTION
 Do not shade the light sensor by adhering a sticker or a label on the windshield.
Otherwise the light sensor will not operate correctly.
 The light sensor also works as a rain sensor for the auto-wiper control. Keep hands
and scrapers clear of the windshield when the wiper lever is in the AUTO position
and the ignition is switched ON as fingers could be pinched or the wipers and
wiper blades could be damaged when the wipers activate automatically. If you are
going to clean the windshield, be sure the wipers are turned o ff completely when
it is particularly tempting to leave the en gine running. This is particularly important
when clearing ice and snow.
When Driving
Switches and Controls
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NOTE
The headlights and other exterior lights may not turn off immediately even if the
surrounding area becomes well-lit because the light sensor determines that it is
night time if the surrounding area is cont inuously dark for several minutes such as
inside long tunnels, tra ffic jams inside tunnels, or in indoor parking lots.
If the headlight switch and the windshield wiper switch are in AUTO, and the
wipers are operated at low or high speed by the auto wiper control for several
seconds, bad weather conditions are determined and the headlights may be
turned on.
The sensitivity of the auto-light control may be changed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
▼ Headlight High-Low Beam
The headlights switch between high
and low beams by moving the lever
forward or backward.

1. High beam
2. Low beam

When the headlight high-beams are
on, the headlight high-beam indicator
light is turned on.

▼Flashing the Headlights
The headlights can be
flashed with the
ignition switched to ON.
When the power switch is switched
ON, and regardless of the headlight
position, the headlights switch to high
beams while the lever is being pulled.

1. OFF
2. Headlight flashing

The headlight high-beam indicator
light in the instrument cluster
illuminates simultaneously. The lever
will return to the normal position when
released.

When Driving
Switches and Controls
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Switch Posi-tion Wiper operation
MIST Operation while pulling up lev-
er
OFF Stop
INT Intermittent LO Low speedHI High speed
Variable-speed intermittent wipers
Set the lever to the intermittent
position and choose the interval timing
by rotating the switch.
Rotate the switch upward (FAST
direction) to shorten the interval time
of the wiper operation, and rotate the
switch downward (SLOW direction) to
lengthen it.

1. Switch
With auto-wiper control

1. Indicator light
Switch Posi- tion Wiper operation
MIST Operation while pulling up lev-
er
OFF Stop
AUTO
*1Auto control
LO Low speed HI High speed
*1 When the wiper lever is switched to the AUTO position, the indicator light turns on.
Auto-wiper control*
When the wiper lever is in the AUTO
position, the rain sensor senses the
amount of rainfall on the windshield
and turns the wipers on or o ff
automatically (o ff―intermittent ―low
speed ―high speed).

The sensitivity of the rain sensor can be
adjusted by turning the switch on the
wiper lever.
From the center position (normal),
rotate the switch upward (+ direction)
for higher sensitivity (faster response)
or rotate it downward (- direction) for
less sensitivity (slower response).

1. Switch
2. Higher sensitivity
3. Center position
4. Less sensitivity
When Driving
Switches and Controls
4-54*Some models.
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CAUTION
Do not shade the rain sensor by
adhering a sticker or a label on the
windshield. Otherwise the rain
sensor will not operate correctly.
When the ignition is switched ON
and the wiper lever is in the AUTO
position, the windshield wipers may
operate automatically in the
following cases:
 The area of the windshield above
the rain sensor is touched or wiped
with a cloth.
 The windshield or the rain sensor
area in the cabin is hit.
When the ignition is switched ON
and the wiper lever is in the AUTO
position, do not touch the
windshield or the windshield wipers
Otherwise, the windshield wipers
will operate automatically which
could catch your fingers or damage
the windshield wipers.
When removing ice or snow, or
cleaning the windshield, always
make sure the wiper lever is in the
OFF position.
NOTE
Switching the auto-wiper lever from
the OFF to the AUTO position while
driving activates the windshield
wipers once, after which they
operate according to the rainfall
amount.
The auto-wiper control may not
operate when the rain sensor
temperature is about －10 °C (14 °F)
or lower, or about 85 °C (185 °F) or
higher.
If the windshield is coated with
water repellent, the rain sensor may
not be able to sense the amount of
rainfall correctly and the auto-wiper
control may not operate properly.
If dirt or foreign matter (such as ice
or matter containing salt water)
adheres to the windshield above the
rain sensor, or if the windshield is
iced, it could cause the wipers to
move automatically. However, if the
wipers cannot remove this ice, dirt or
foreign matter, the auto-wiper
control will stop operation. In this
case, set the wiper lever to the low
speed position or high speed
position for manual operation, or
remove the ice, dirt or foreign matter
by hand to restore the auto-wiper
operation.
If the auto-wiper lever is left in the
AUTO position, the wipers could
operate automatically from the eff ect
of strong light sources,
electromagnetic waves, or infrared
light because the rain sensor uses an
optical sensor. It is recommended
that the auto-wiper lever be
switched to the OFF position other
than when driving the vehicle under
rainy conditions.
When Driving
Switches and Controls
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