brake sensor MAZDA MODEL 3 HATCHBACK 2021 Owner's Manual

DisplayDistance between vehicle and obstruc-
tion
Without 360° view monitor
With 360° viewmonitor Front ultrasonic
sensor
*/Front cor-
ner ultrasonic sen-
sor
*
Rear ultrasonic sen-sor/Rear corner ul- trasonic sensor/
Rear side ultrasonic
sensor
*
Without front ul-trasonic sensor
and front corner
ultrasonic sensor With front ultra-
sonic sensor and
front corner ultra-
sonic sensor
RedFront ultrasonic sen-
sor:
Within approx. 35.0
cm (13.7 in)
Front corner ultra- sonic sensor:
Within approx. 25 cm (9.8 in) Rear ultrasonic sen-
sor:
Within approx. 35.0 cm (13.7 in)
Rear corner ultra-
sonic sensor/Rear
side ultrasonic sen-
sor:
Within approx. 25
cm (9.8 in)
▼Parking Sensor OFF Switch
When the switch is pressed, the
parking sensor is stopped and the
indicator light turns on.
If the switch is pressed again, the
parking sensor becomes operational
and the indicator light turns o
ff.
1. Indicator light
NOTE
(Automatic vehicle)
The detection indicator and buzzer
of the front ultrasonic sensors/front
corner ultrasonic sensors do not
operate when the selector lever is in
the P position.
The detection indicator and buzzer
sound do not activate when the
parking brake is applied.
When Driving
Pa r k i n g S e n s o r Sys te m
4-242*Some models.
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▼Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Flashing)
If there is a problem with the TPMS or
the voltage of a tire pressure sensor
decreases, the TPMS warning light
fl
ashes and a message is displayed on
the multi-information display. Have
your vehicle inspected by an
Authorized Mazda Dealer.
WARNING
Do not drive the vehicle at high
speeds if the TPMS warning light turns
on or fl ashes:
Driving the vehicle at high speeds
while the TPMS warning light is turned
on or fl ashing is dangerous because
the brake performance and the
steering wheel operability will be
reduced. If the vehicle is driven at high
speeds or the brakes are suddenly
applied, it could lead to an accident.
Gradually apply the brakes to lower the
vehicle's speed.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to drive the vehicle while
ignoring the illumination/ flashing of
the TPMS warning light is dangerous
because a tire may burst which could
lead to an accident. Take appropriate
measures as soon as possible.
▼ KEY Warning Indication/Warning
Light (Red)
“Keyless Entry System Malfunction.
Have the Vehicle Inspected” is
displayed
This message is displayed if the
advanced keyless entry & push button
start system has a problem.
Contact an Authorized Mazda Dealer.
CAUTION
If the message is indicated, or the push
button start indicator light (amber)
fl
ashes, the engine may not start. If the
engine cannot be started, try starting it
using the emergency operation for
starting the engine, and have the
vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Refer to Emergency Operation for
Starting the Engine on page 4-9.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-33
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▼Low Fuel Warning Beep
When the low fuel warning light
fl
ashes, a warning beep is activated
once at the same time.
▼ Brake Override Warning Beep
A warning beep is activated when the
accelerator pedal and brake pedal are
depressed at the same time while
driving. Only depress the brake pedal.
▼Shift Position Warning Beep
A sound is activated when the push
button start is pressed while the
selector lever is in a position other
than P, and the ignition is switched to
ACC. Check the selector lever
position.
▼Electric Parking Brake (EPB)
War n in g Be ep
The warning buzzer is activated under
the following conditions:
The vehicle is driven with the parking
brake applied.
The Electric Parking Brake (EPB)
switch is pulled while the vehicle is
driven.
You attempt to start driving the
vehicle while the conditions for
releasing the Electric Parking Brake
(EPB) automatically have not been
met.
▼
AUTOHOLD Warning Beep
Warning light
flashes/message is
displayed and beep sound is activated
simultaneously for about 5 seconds
when using AUTOHOLD function or
when AUTOHOLD switch is operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switch is operated.

If the warning light flashes/message is
displayed and the beep sound is
activated simultaneously, have your
vehicle inspected at an Authorized
Mazda Dealer.
▼ Vehicle Problem Warning Beep
If any of the following problems occur,
a warning beep is activated. Check the
information regarding the warning
indication in the instrument cluster or
on the center display.
Automatic transmission problemIncrease in automatic transmission
internal temperature
Brake
fluid amount decreaseEngine oil level sensor problemElectric Parking Brake (EPB) problemEngine hydraulic pressure decreaseEngine coolant temperature increaseEngine system problem
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-45
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Index
F
FlasherHazard warning.................... 4-60
Headlights............................4-46
Flat Tire Changing a flat tire................. 7-7
Mounting the spare tire........ 7-12
Removing a flat tire................ 7-8
Floor Mat................................. 3-46
Fluids Brake/Clutch........................6-21
Classi fication.......................... 9-5
Washer................................ 6-22
Foot Brake................................ 4-65
Forward Sensing Camera (FSC) ..........
.............................................. 4-203
Front Camera/Side Cameras/Rear
Camera.................................. 4-213
Front Cross Tra ffic Alert (FCTA) ..........
.............................................. 4-113
Front Cross Traffic Alert (FCTA)
Warning Beep........................... 7-46
Front Radar Sensor.................. 4-207
Front Side Radar Sensor........... 4-209
Fuel Filler lid and cap...................3-27
Requirements....................... 3-25
Tank capacity......................... 9-5
Fuses........................................ 6-40 Panel description.................. 6-43
Replacement........................ 6-40
G
Gauges..................................... 4-12
Glove Compartment..................5-46
H
Hazardous Driving.....................3-45
Hazard Warning Flasher............. 4-60
HeadlightsComing home light...............4-50
Flashing................................4-49
High-low beam.................... 4-49
Leaving home light............... 4-50
Leveling................................4-51
Head Restraint.......................... 2-17
High Beam Control System
(HBC)....................................... 4-90 High Beam Control System (HBC)
indicator light (green)........... 4-91
Hill Launch Assist (HLA)............. 4-75
HomeLink Wireless Control
System...................................... 4-60
Hood Release........................... 6-13
Horn........................................ 4-59
I
If a Warning Light Turns On or
Flashes......................................7-27
If the Active Driving Display Does Not
Operate.................................... 7-50
Ignition Not Switched O ff (STOP)
Warning Beep........................... 7-43
Ignition Switch............................ 4-4
Illuminated Entry System............ 5-41
Immobilizer System................... 3-40
Inside Trunk Release Lever......... 3-24
Inspecting Brake/Clutch Fluid
Level.........................................6-21
Inspecting Coolan t Level............ 6-20
Inspecting Engine Oil Level.........6-19
Inspecting Washer Fluid Level..... 6-22
Instrument Cluster..................... 4-12 Average fuel economy...........4-20
Compass display.................. 4-21
Current fuel economy........... 4-20
Dashboard illumination........ 4-18
Distance-to-empty................4-20
10-4
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Index
Engine coolant temperature
gauge...................................4-17
Fuel gauge........................... 4-17
Indication/indicator lights..... 4-25
i-ACTIVSENSE display........... 4-21
Message Display................... 4-22
Message indicated on multi-
information display............... 7-39
Multi-information display...... 4-14
Odometer............................ 4-16
Outside temperature
display................................. 4-19
Speedometer....................... 4-12
Tachometer.......................... 4-13
Trip meter............................ 4-16
Warning indication/warning
lights....................................4-23
Interior Care............................. 6-54 Active driving display
maintenance........................ 6-56
Cleaning the floor mats......... 6-56
Cleaning the window
interiors............................... 6-56
Instrument panel top (Soft pad)
maintenance........................ 6-55
Leather upholstery
maintenance........................ 6-55
Panel maintenance............... 6-56
Plastic part maintenance....... 6-55
Seat belt maintenance.......... 6-54
Upholstery maintenance....... 6-55
Vinyl upholstery
maintenance........................ 6-54
Interior Lights............................ 5-39 Luggage compartment light... 5-39
Map lights............................5-39
Overhead lights.................... 5-39
Trunk light............................ 5-39
i-ACTIVSENSE........................... 4-85 Active safety technology........ 4-85Adaptive Front Lighting System
(AFS)................................... 4-90
Blind Spot Monitoring
(BSM).................................. 4-96
Camera and sensors............. 4-86
Distance & Speed Alert
(DSA)................................ 4-108
Driver Attention Alert
(DAA)................................ 4-109
Driver monitoring camera....4-214
Driver Monitoring (DM)...... 4-111
Forward Sensing Camera
(FSC)................................. 4-203
Front camera/side cameras/rear
camera...............................4-213
Front Cross Traffic Alert
(FCTA)............................... 4-113
Front radar sensor...............4-207
Front side radar sensor........ 4-209
High Beam Control System
(HBC).................................. 4-90
i-ACTIVSENSE OFF Switch..... 4-89
i-ACTIVSENSE status symbol
(warning/risk avoidance support
system)................................ 4-87
Lane Departure Warning System
(LDWS)................................ 4-92
Lane-keep Assist System
(LAS)..................................4-154
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)........... 4-128
Mazda Radar Cruise Control
(MRCC)............................. 4-120
Pre-crash safety technology... 4-86
Rear Cross Tra ffic Alert
(RCTA)............................... 4-116
Rear side radar sensor......... 4-211
Smart Brake Support (SBS)...4-158
Smart Brake Support [Rear
Crossing] (SBS-RC)............. 4-164
10-5
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Index
Smart Brake Support [Rear]
(SBS-R).............................. 4-160
Tra ffic Jam Assist (TJA)......... 4-139
Tra ffic Sign Recognition
System (TSR)...................... 4-101
Ultrasonic sensor................ 4-212
360°view monitor...............4-168
i-ACTIV AWD Operation........... 4-83
J
Jack............................................ 7-3
Jump-Starting............................ 7-17
K
Keyless Entry System.................... 3-4
Keys........................................... 3-2 Key suspend function..............3-8
Transmitter............................. 3-5
Key Left-in-luggage Compartment/
Trunk Warning Beep (With the
advanced keyless function)........ 7-44
Key Left-in-vehicle Warning Beep
(With the advanced keyless
function)...................................7-44
Key Removed from Vehicle Warning
Beep.........................................7-43
Key Suspend Function................. 3-8
L
Label Information Chassis number...................... 9-2
Engine number....................... 9-3
Motor vehicle safety standard
label...................................... 9-2
Tire pressure label.................. 9-2
Vehicle emission control
information label.................... 9-2
Ve h i c l e identification
number..................................9-2
Lane Departure Warning sound.. 7-46
Lane Departure Warning System
(LDWS).....................................4-92
Lane-change Signals.................. 4-52
Lane-keep Assist System (LAS) ...........
.............................................. 4-154
Leaving Home Light................... 4-50
Liftgate..................................... 3-19 Luggage compartment.......... 3-22
When liftgate/trunk lid cannot be
opened................................ 7-48
Liftgate Door-lock Switch Inoperable
Warning Beep........................... 7-44
Lights-on Reminder................... 7-42
Light Bulbs Replacement........................ 6-37
Speci fications ......................... 9-9
Low Fuel Warning Beep............. 7-45
Lubricant Quality......................... 9-5
Luggage Compartment.............. 5-47
Luggage Compartment Light...... 5-39
M
Maintenance Information............................ 6-2
Scheduled (Canada)............... 6-6
Scheduled (Mexico)................6-9
Scheduled (U.S.A. and Puerto
Rico)......................................6-4
Manual Transmission Shift
Pattern...................................... 4-33
Map Lights................................ 5-39
Mazda Connect........................ 5-15 Appendix............................. 5-29
Connected Service................5-37
Mazda Connect Basic
Operations........................... 5-19
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function)........................4-128 Close proximity warning...... 4-132
10-6
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Index
Display indication............... 4-131
Setting the system...............4-133
Stop hold control............... 4-138
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) System
Warnings.................................. 7-46
Mazda Radar Cruise Control
(MRCC).................................. 4-120 Close proximity warning...... 4-123
Display indication............... 4-122
Setting the system...............4-124
Shift-up/shift-down request
display............................... 4-128
Mazda Radar Cruise Control (MRCC)
System Warnings....................... 7-46
Message Indicated on Multi-
information Display................... 7-39
Meters...................................... 4-12
Mirrors Outside mirrors.................... 3-30
Rearview mirror.................... 3-32
Mirror Defogger........................ 4-59
Moonroof................................. 3-37
Multi-information Display.......... 4-14
O
Outside Mirrors.........................3-30
Overhead Console.................... 5-46
Overhead Lights........................ 5-39
Overheating.............................. 7-21
Overloading.............................. 3-49
Owner Maintenance Closing the hood..................6-14
Engine compartment
overview.............................. 6-15
Key battery replacement........6-31
Opening the hood................ 6-13
Owner maintenance
precautions.......................... 6-12
P
Parking Brake............................ 4-66
Parking Sensor System............. 4-238Parking Sensor OFF Switch... 4-242
Sensor detection range........4-240
Power Steering.......................... 4-84
Power Windows........................ 3-34
R
Rearview Mirror........................ 3-32
Rear Coat Hooks....................... 5-45
Rear Cross Tra ffic Alert (RCTA) ...........
.............................................. 4-116
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-46
Rear Door Child Safety Locks..... 3-19
Rear Side Radar Sensor............ 4-211
Rear View Monitor.................. 4-223 Displayable range on the
screen................................ 4-225
Rear view monitor
operation........................... 4-228
Rear view parking camera
location............................. 4-224
Switching to the rear view monitor
display............................... 4-225
Variance between actual road
conditions and displayed
image................................ 4-235
Viewing the display.............4-226
Rear Window Defogger............. 4-58
Rear Window Washer................ 4-57
Rear Window Wiper.................. 4-57
Recommended Oil.................... 6-17
Recording of Vehicle Data..........8-20
Recreational Towing.................. 3-51
Registering Your Vehicle in A Foreign
Country.................................... 8-16
Replacement
10-7
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Index
Vehicle emission control
information label.................... 9-2
Vehicle identification
number..................................9-2
Vehicle Problem Warning Beep... 7-45
W
Warning Sound is Activated AUTOHOLD warning beep.... 7-45
Blind Spot Monitoring (BSM)
warning beep....................... 7-46
Brake override warning
beep.................................... 7-45
Collision warning..................7-47
Door-ajar warning beep........ 7-47
Electric Parking Brake (EPB)
warning beep....................... 7-45
Excessive speed warning........7-47
Front Cross Tra ffic Alert (FCTA)
Warning Beep...................... 7-46
Ignition not switched o ff (STOP)
warning beep....................... 7-43
Key left-in-luggage compartment/
trunk warning beep (With the
advanced keyless function).... 7-44
Key left-in-vehicle warning beep
(With the advanced keyless
function).............................. 7-44
Key removed from vehicle warning
beep.................................... 7-43
Lane departure warning
sound.................................. 7-46
Liftgate Door-lock Switch
Inoperable Warning Beep...... 7-44
Lights-on reminder............... 7-42
Low fuel warning beep..........7-45
Mazda Radar Crui se Control with
Stop & Go function (MRCC with
Stop & Go function) system
warnings.............................. 7-46
Mazda Radar Cruise Control
(MRCC) system warnings...... 7-46
Rear Cross Tra ffic Alert (RCTA)
Warning Beep...................... 7-46
Seat belt warning beep......... 7-42
Shift position warning beep... 7-45
Touch sensor inoperable warning
beep (With the advanced keyless
function).............................. 7-44
Vehicle problem warning
beep.................................... 7-45
Warranty................................... 8-15
Weights...................................... 9-7
Windows Power windows.................... 3-34
Windshield Washer................... 4-56
Windshield Wipers.................... 4-53
Windshield Wipers Operate at High
Speed....................................... 7-51
Windshield Wiper De-icer..........4-58
Winter Driving...........................3-47
Wiper Replacing Rear Window Wiper
Blade (5-Door).....................6-27
Replacing windshield wiper
blades..................................6-24
0-9
360°View Monitor.................. 4-168How to use the system........ 4-178
Margin of error between road
surface on screen and actual road
surface............................... 4-197
Side view........................... 4-187
Top view/front view............4-182
Top view/front wide view.... 4-185
Top view/rear view............. 4-190
Top view/rear wide view..... 4-195
Types of images displayed on the
screen................................ 4-173
10-10
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