2021 MAZDA MODEL 3 HATCHBACK Owners Manual

Winter Driving
▼Winter Driving
Carry emergency gear, including tire
chains, window scraper,
flares, a small
shovel, jumper cables, and a small bag
of sand or salt.
Ask an Authorized Mazda Dealer to
check the following:
Have the proper ratio of antifreeze in
the radiator.
Refer to Engine Coolant on page
6-20.
Inspect the battery and its cables.
Cold reduces battery capacity.
Use an engine oil appropriate for the
lowest ambient temperatures that
the vehicle will be driven in (page
6-17).
Inspect the ignition system for
damage and loose connections.
Use washer fluid made with
antifreeze ―but do not use engine
coolant antifreeze for washer fluid
(page 6-22).
NOTE
Remove snow before driving. Snow
left on the windshield is dangerous
as it could obstruct vision.
Do not apply excessive force to a
window scraper when removing ice
or frozen snow on the mirror glass
and windshield.
Never use warm or hot water for
removing snow or ice from windows
and mirrors as it could result in the
glass cracking.
Drive slowly. Braking performance
can be adversely a ffected if snow or
ice adheres to the brake
components. If this situation occurs,
drive the vehicle slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to
normal.
▼ Snow Tires
Use snow tires on all 4 wheels
Do not go faster than 120 km/h (75
mph) while driving with snow tires.
In
flate snow tires 30 kPa (0.3 kgf/cm
2,
4.3 psi) more than recommended on
the tire pressure label (driver's door
frame), but never more than the
maximum cold-tire pressure shown on
the tires.

Mexico
The vehicle is originally equipped with
summer tires designed for optimum
traction on wet and dry roads. If your
vehicle is to be used on snow and ice
covered roads, Mazda recommends
that you replace the tires originally
equipped on your vehicle with snow
tires during the winter months.
Except Mexico
The vehicle is originally equipped with
all season radials designed to be used
all year around. In some extreme
climates you may find it necessary to
replace them with snow tires during
the winter months to further improve
traction on snow and ice covered
roads.
Before Driving
Driving Tips
3-47
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

WARNING
Use only the same size and type tires
(snow, radial, or non-radial) on all 4
wheels:
Using tires different in size or type is
dangerous. Your vehicle's handling
could be greatly a ffected and result in
an accident.
CAUTION
Check local regulations before using
studded tires.
NOTE
The tire pressure monitoring system
may not function correctly when using
tires with steel wire reinforcement in
the sidewalls (page 4-220).
▼ Tire Chains
Check local regulations before using
tire chains.
CAUTION

Chains may a ffect handling.
 Do not go faster than 50 km/h (30
mph) or the chain manufacturer's
recommended limit, whichever is
lower.
 Drive carefully and avoid bumps,
holes, and sharp turns.
 Avoid locked-wheel braking.
 Do not use chains on a temporary
spare tire; it may result in damage to
the vehicle and to the tire.
 Do not use chains on roads that are
free of snow or ice. The tires and
chains could be damaged.
 Chains may scratch or chip
aluminum wheels.
NOTE
The tire pressure monitoring system
may not function correctly when
using tire chains.
Install the chains on the front tires only.
Do not use chains on the rear tires.
Please consult an Authorized Mazda
Dealer.
Installing the chains
1. If your vehicle is equipped with wheel covers remove them,
otherwise the chain bands will
scratch them.
2. Secure the chains on the front tires as tightly as possible.
Always follow the chain
manufacturer's instructions.
3. Retighten the chains after driving 1/2 ―1 km (1/4 ―1/2 mile).
Before Driving
Driving Tips
3-48
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Driving In Flooded Area
▼Driving In Flooded Area
WARNING
Dry o
ff brakes that have become wet
by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to normal:
Driving with wet brakes is dangerous.
Increased stopping distance or the
vehicle pulling to one side when
braking could result in a serious
accident. Light braking will indicate
whether the brakes have been
a ff ected.
CAUTION
Do not drive the vehicle on flooded
roads as it could cause short circuiting
of electrical/electronic parts, or engine
damage or stalling from water
absorption. If the vehicle has been
immersed in water, consult an
Authorized Mazda Dealer.
Overloading
▼ Overloading
WARNING
Be careful not to overload your
vehicle:
The gross axle weight rating (GAWR)
and the gross vehicle weight rating
(GVWR) of the vehicle are on the
Motor Vehicle Safety Standard Label
on the driver's door frame. Exceeding
these ratings can cause an accident or
vehicle damage. You can estimate the
weight of the load by weighing the
items (or people) before putting them
in the vehicle.
Before Driving
Driving Tips
3-49
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

Driving on Uneven Road
▼Driving on Uneven Road
Your vehicle's suspension and
underbody can be damaged if driven
on rough/uneven roads or over speed
bumps at excessive speeds. Use care
and reduce speed when traveling on
rough/uneven roads or over speed
bumps.

Use care not to damage the vehicle's
underbody, bumpers or
muffler(s)
when driving under the following
conditions:
Ascending or descending a slope
with a sharp transition angle
Ascending or descending a driveway
or trailer ramp with a sharp transition
angle

This vehicle is equipped with low
pro file tires allowing class-leading
performance and handling. As a result,
the sidewall of the tires are very thin
and the tires and wheels can be
damaged if driven through potholes or
on rough/uneven roads at excessive
speeds. Use care and reduce speed
when traveling on rough/uneven roads
or through potholes.
Turbocharger Information
(SKYACTIV -G 2.5T)
▼ Turbocharger Information
(SKYACTIV
-G 2.5T)
CAUTION

After driving at freeway speeds or up
a long hill, idle the engine at least 30
seconds before stopping it.
Otherwise, the turbocharger could
be damaged.
 Racing or over-revving the engine,
particularly after it's just been
started, can damage the
turbocharger.
 To protect the engine from damage,
the engine is designed so that it
cannot be raced just after starting it
in extremely cold weather.
The turbocharger greatly enhances
engine power. Its advanced design
provides improved operation and
requires minimum maintenance.

To get the most from it, observe the
following.
1. Change engine oil and filter
according to Scheduled
Maintenance.
Refer to Scheduled Maintenance
(U.S.A. and Puerto Rico) on page
6-4.
Refer to Scheduled Maintenance
(Canada) on page 6-6.
Refer to Scheduled Maintenance
(Mexico) on page 6-9.
2. Use only recommended engine oil (page 6-17). Extra additives are
NOT recommended.
Before Driving
Driving Tips
3-50
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Tra i l e r To w i n g
▼Tra i l e r To w i n g
Yo u r M a z d a i s n o t d e
signed for towing.
Never tow a trailer with your Mazda.
Recreational Towing
▼ Recreational Towing
An example of "recreational towing" is
towing your vehicle behind a
motorhome.
The transmission is not designed for
towing this vehicle on all 4 wheels.
When doing recreational towing refer
to "Towing Description" (page 7-23)
and "Tiedown Hooks" (page 7-24)
and carefully follow the instructions.
Before Driving
Towing
3-51
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

MEMO
3-52
Mazda3_8JM2-EA-20H_Edition1_new 2020-7-10 17:21:34

4When Driving
Information concerning safe driving and stopping.
Start/Stop Engine..................... 4-4 Ignition Switch.......................4-4
Starting the Engine................. 4-5
Turning the Engine Off.......... 4-10
Cylinder Deactivation...........4-11
Instrument Cluster and
Display.................................. 4-12 Instrument Cluster and
Display................................4-12
Instrument Cluster............... 4-12
Active Driving Display
*......... 4-30
Manual Transmission
Operation.............................. 4-33 Manual Transmission Shift
Pattern................................ 4-33
Automatic Transmission........... 4-35 Automatic Transmission
Controls.............................. 4-35
Shift-Lock System................. 4-36
Transmission Ranges............ 4-37
Manual Shift Mode.............. 4-38
Direct Mode
*.......................4-44
Driving Tips......................... 4-45
Switches and Controls............. 4-46 Lighting Control................... 4-46
Turn and Lane-Change
Signals................................ 4-52
Windshield Wipers and
Washer............................... 4-53
Rear Window Wiper and
Washer
*.............................. 4-57
Rear Window Defogger........ 4-58
Horn................................... 4-59
Hazard Warning Flasher....... 4-60
HomeLink Wireless Control
System
*............................... 4-60
Brake.....................................4-65 Brake System....................... 4-65
AUTOHOLD........................ 4-71
Hill Launch Assist (HLA)........4-75
ABS/TCS/DSC....................... 4-77 Antilock Brake System
(ABS).................................. 4-77
Tra c t i o n C o n t r o l Sy s t e m
(TCS).................................. 4-78
Dynamic Stability Control
(DSC)................................. 4-79
Drive Selection....................... 4-81 Drive Selection
*................... 4-81
i-ACTIV AWD......................... 4-83 i-ACTIV AWD Operation
*..... 4-83
Power Steering....................... 4-84 Power Steering.....................4-84
i-ACTIVSENSE......................... 4-85 i-ACTIVSENSE
*..................... 4-85
*Some models.4-1
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

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.
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34